Norton commando primary oil Its a good thing not to inner primary chaincase oil deflector cup. Seems the entire thing drained to the primary filling it Norton Commando Forum . Two questions which I can't seem to find information on 1. At 200 cc the oil level is well below this opening and does not come close to touching the chain. Because the squeeze out will break off and clog oil galleries. I just checked my copy of Haynes' "Norton Twins - All models 1957 to 1970 (Excluding Commando)" manual. Any oil flung off the back face of the basket has minimal gap to enter and the cup shape prevents flow back into the seal. Check timing and adjust contact breaker points (if fitted). Oil pump worm gear/nut (06-7889, LH thread, on Although I don't have a Norton with an oil bath chain case, the primary drive and cover on my Royal Enfield is the same sort of design with the useless rubber seal around it. Brass, Phosphor Bronze Before digging into the seal between the inner chaincase and engine, I'd make sure if you do or do not have a leak from the engine into the chaincase. REGISTERED OFFICE: 4 NORTH COURTYARD, DUNSTON BUSINESS VILLAGE STAFFORD ST18 9AB . Start the engine and use a container to catch the oil coming out of the filter housing; the oil will be dirty, often for up to three-quarters of a minute, then the clean oil will begin to emerge. 17) Degrease the oil drain hole in the outer primary cover, and install the drain plug, part # 06. • The only place on the engine where such extreme temperatures can occur is the cylinder head. Oh! Despite careful primary reassembly , including new crank oil seal, I still get some oil drips from the dry primary vent holes (cNw electric start kit with belt drive). Disconnect the foot brake, remove the outer primary chain case cover, put the bike in gear and reconnect the foot brake with the adjusting wing nut lock the back brake so that the alternator rotor nut can be removed, remove the alternator stator there is usually enough slack in the Norton Commando Forum . Reactions: Tripler. Another PR reference called for SAE 20 oil in the forks, with SAE 30 for particularly bumpy circuits. Thread starter PalmerNorton; Start date Jul 25, 2009; Status Not a couple of pumps and just suck up the Regarding the oil leak at primary, if it is just the fixing stud in center, then no need to remove clutch to access. Then the oil temp is raised to 320 degrees and the Like Anna, I advocate making the primary chaincase oiltight and using a thin oil - in my case agricultural tractor universal 15W-30. koda. www. The oil running down the face of the inner primary case no longer runs directly onto the seal as it is diverted by the cupped sleeve. Next Last. Log in; Sign Up $ 0. Yes, from the crank oil I am just putting back together a Mk3 I purchased dismantled and as I haven't owned a Mk3 since 1991 [recently I sold my MK2A] am interested in your comments about primary oil, I have read here that ATF is a no no, and actually in my other bikes I have been running Maxima MTL 75wgt which is a 2 stroke gearbox oil equivalent to a 30wgt engine oil, I then stripped out the primary and found problems with the electric starting system, as you know I am now in the throw's of replacing these parts mentioned in this post, which lead me to the questions you guys have now kindly answered, it would appear these little plungers in the primary chain tensioner where installed incorrectly by the Norton factory or perhaps the I tried running a dry primary and lubed the chain with chain lube. I've also always been told that "oil is cheap, rebuilds are not" and I guess that has stuck with me, right or wrong. Yes, from the crank oil • The Norton Commando is capable under extreme riding conditions of experiencing engine temperatures that can cause rapid breakdown of commonly used oils. Can anybody advise me which is the best engine oil to use for a commando 750cc 20. The real issue is that you want the lower run of the primary chain covered with oil, but keep the level below the bottom of the clutch plates. HD items and hopefully at some point an all Harley 16" rear wheel but may have to move the cush drive function to primary belt tensioner battery charger. Didn't have time to locate the leak but my pod filter was soaked. VAT REG NO 368 8236 11 Always check your oil tank before any ride and if the bike has been sitting for some time to drain your crank of any access oil that may have filled up from sitting, I normally do that the night before any big ride but mine only wet sumps if I let it sit for 4 months or more, its all part of owning a Norton and seems like you have blown your crank seal or the bolts that hold your Having looked through the box of bits that accompanied my 68 commando (age is correct this post) which i have owned for less than a month now. D. Thread starter chasesa; Start date Jul 10, 2011; Status Not open for further replies. Del. Piero oil line routing. Either a Monograde Oil, or (better) ATF Oil www. Application Mild EP Gear Oil I've never seen it done, and I have a feeling it's because the Dominator case is longer than the Commando type. No anti friction additives so ideal for Norton View and Download Norton Commando 750 rider's manual online. The modified timing cover from AMR is the only real fix for the So, my 1971 Commando recently developed a rather prodigious oil leak, somewhere behind the primary. Share: I don’t think anything has sold more belt drives than the Atlas/Dominator chain case proclivity to leak. Log in to post Because the primary chain pulls the mainshaft tighter against the bushes in the sleeve gear. The Real Way of Hanging I have had a couple of sets of the little rubber isolators break on my Commando oil tank. Mar 30, 2006 I run my 71 fastback on Silkolene Super 4 20-50 semi synthetic. Peter, This is how I would change the drive side crankshaft seal on a 99 Dominator. It had got so bad that oil fumes, from the stuff burning on the exhaust pipe, were Check primary chain case oil level. It's more common for oil to migrate from crankcase to primary when the engine oil drains to the sump during extended periods of inactivity. I’ve been trying to stop a niggling oil leak from the primary case. The oil did not stink of the gear oil I use in my tranny, nor had the somewhat sticky feel of the ATF I use in my primary, but was of the viscosity and sliperyness of the RedLine Motorcycle 20-50 synthetic I use in my engine. Reply. Oil Pressure light Is there a sensor that will fit in the Norton primary cover without surgery? the primary side has no access to oil pressure . Hello. The PR specs called for 180 cc of "Castrol CRI30 (SAE 30)" oil for the same forks. What are the pros of I know that some of us will have heard the comments made before, and he wrote a good review on this Forum a few months ago, but that article neatly pulls together the design Which oil to use for your Norton Commando Commando 750 (1967 - 1973)? A complete overview of all components such as the engine, transmission (transaxle), brake system, power steering, In an effort to get the Commando in shape, I decided I had to fix the oil leak from the primary chaincase. introduced in 1974 this cup was incorporated into the sliding plate assembly used on the pre mk3 commando primary chaincase, the idea being to DOES ANYONE KNOW THE TECHNICAL SPECIFICATIONS FOR A NORTON OIL FILTER? FLOW RATE This filter originally fit a 63 thru 72 Simca auto. I am confident in my shim determination. The sealing band large outer rubber gasket is best seated with any imperfections The oil Anna recommended was Lucas primary chain oil, seems to do what it’s name implies, I use it with no problems in 2 Norton’s and 1 BSA primary chaincase. Bob Raber, of Raber's Parts Mart, swears by Torco MPZ. Commando. Is this correct? The reason I ask is that I am building this bike from a box of parts and the oil feed lines that I found in the box all have the same size banjos and the size is the smaller hole. Application Mild EP Gear Oil So I check the oil tank level in my '71 commando project which I filled two weeks back after an oil change and its empty. The pressed steel chain case can be made oil tight. Primary leaks. Thread starter mark375850; Start date what oil should I use in my Mk3 primary? will I need to use 20/50 for the chain tensioner? or will automatic transmission fluid work also what quantity should I use 300ml as specified or can I lower the level without affecting the tensioner? The Lucas HD Primary Chaincase Oil you have linked to is pitched as a clutch stack coolant rather than a primary chain lubricant. Joined May 26, 2010 Messages 7,885. The sealing band large outer rubber gasket is best seated with any imperfections like casting marks or splits best placed over the stator top Norton Commando Forum . Replies 41 Views 1,227. Raincityrider; Nov 17, 2024; Modern Norton Motorcycles; Replies 13 Views 306. Its because the gearbox seems about a 3/16 too far forward and the mainshaft where it goes through the primary to the clutch through oil seal 065956 (the seal in the primary behind the clutch). Norton 961 massive oil leak. Thread starter seattle##gs; Start date Aug 23, 2016; Status Not open for further replies If you change the primary oil (always a good idea after a layoff since it runs a little colder than A review of correspondence from NOC-L. Which oil gearbox. VAT REG NO 368 8236 11 Before digging into the seal between the inner chaincase and engine, I'd make sure if you do or do not have a leak from the engine into the chaincase. THE NORTON OWNERS CLUB LIMITED . • The only place on the thanks for the advice. trident sam. Oil pump worm gear nut (13-1303, on oil pump shaft) 25 ft-lb. Various spray greases are reasonably good in this respect but I still find my tub Norton Commando Forum . oil leak. Thread starter 1974BlueCommando; Start date Jun 19, 2013; Status Not open for If the level is very high Shop Norton Clutch and Primary with the largest selection. IMHO, the oil spray in the primary case benefits the sprocket and chain as well. introduced in 1974 this cup was incorporated into the sliding plate assembly used on the pre mk3 commando primary chaincase, the idea being to 1974 Norton Commando Remove Engine from Frame, How To Article with Pictures. Tripler. Mine does not leak, and I use 150 ml vs the 200 ml most other people go with. Yes, it eliminated the oil leak from the primary case. belt drive primary. The flat on the spindle must face the rocker cover in each case. Joined Apr 2, 2013 Messages 749. The procedure calls for a "barely descernible stiffness" upon flattening the body and re-assembling the pump. I read about shimming the center mount for even gap around the cover without the gearbox, but not sure how to do that. Joined Found engine oil in primary, This is an excerpt from a workshop manual providing information on Norton Commando 750 and 850 models. Joined Mar 30, 2006 Messages 7. Inner primary chaincase INTRODUCED IN 1974 THIS CUP WAS INCORPORATED INTO THE SLIDING PLATE ASSEMBLY USED ON THE PRE MK3 COMMANDO PRIMARY CHAINCASE, THE IDEA BEING TO DEFLECT OIL AWAY. After a ride a couple days ago, I had a leak from my primary “felt seal area” that is leaving oil all over the frame. Sump plug out,made a cardboard funnel for bottom tank banjo bolt,tipped over to get maximum out. Aug 7, 2020. I tried both on my PR, and generally used the 20 weight. I notice this over the last maybe 10 years. Many Featherbed fettlers dislike silicone in this application because it tends to "glue" the outer cover on. If you slacken the primary, the wheel will stop turning. I fitted one earlier in the year. Classic Motorcycle Build. Oil pump worm gear/nut (06-7889, LH thread, on end of crankshaft) 15 ft-lb. Thread and oil was flooding the primary regularly with every wet sump The Norton's oil pressure seems to be greatly "After one year of work I have finished the restoration of my Commando. Turned out the tensioner top hats were the wrong way round. MKIII Primary chain noise. hth I like these old threads. Sadly my Santa-ride for charity was halted due to the clutch not freeing up making control difficult. Primary chain lube brainstorm. Thread starter Boptone; Start date May 4, 2015; Status Not open for further replies. I did check for a blown seal and my primary level was good. 040, couldn’t stop it with silicone gunge, Norton Commando Forum . As far as draining the oil, it would have been good if Norton had put the oil tank on the other side of the bike. J. scenario is a 1960 ES2 engine fitted with a Commando gearbox and RGM belt drive, all housed in a slimline frame. Has anyone used Halfords classic oil 20/50 for primary case,as says on oil Use plenty of penetrating oil and give it a few days if necessary. I get on the highway to go to work and as I pull in to park I notice my right leg is drenched in oil as well as the bottom of the bike. Primary. Adjust both brakes (disc brake is non-adjustable). Hi All. beast. gearbox fluid capacity. 1 of Found engine oil in primary, suspected leaky main seal. WhereWhatHow MuchSpecial CommentsBrake FluidDot 4As And For A 650 CC Norton Engine the Best oil is a Good 20/50 As The A. maybe you need an excellent sealing compound for paper gaskets like hylomar or yamabond. VIP My '74 primary is OIL TIGHT. PRIMARY CASE • Chaincase centre fixing nut (1 nut, 06. What do you do to control the chain?. Over filled gearbox will also cause that problem, I don't rely on the fill cube for the amount of oil, I use a messure cup and fill to the right fl oz the manual says to use, I found very early the cube for the level does over fill the GB, I also put grease on my clutch rod and since doing this I have had no more problems with GB oil getting into the primary case or clutch, so I am just putting back together a Mk3 I purchased dismantled and as I haven't owned a Mk3 since 1991 [recently I sold my MK2A] am interested in your comments about primary oil, I have read here that ATF is a no no, and actually in my other bikes I have been running Maxima MTL 75wgt which is a 2 stroke gearbox oil equivalent to a 30wgt engine oil, I like these old threads. I used it there because like the primary on a Commando, it won't really hurt anything if some breaks loose inside. e. Piero Expanded as The slipping and/or dragging clutch is primarily from gearbox oil contamination, the fix is the oil seal on the gearbox mainshaft on the clutch end to stop the oil getting into the primary. What's new. Call +1-720-570-7884 for fast, Norton Oil and Air; Norton Service Tools; Norton Tires; Norton Cables Menu Toggle. I agree that silicone is not a good sealant to use on an engine. Joined About the primary oil in the • The Norton Commando is capable under extreme riding conditions of experiencing engine temperatures that can cause rapid breakdown of commonly used oils. Thread starter tpeever; Start date Dec 30, 2006; Status Not open for further replies. 1762) 25 ft. Thread starter Del; Start date Nov 10, 2006; Status Not open for further replies. Oil Pressure Gauge. 1972 Norton Commando 1973 Norton Commando 1974 Norton Commando 2018 Kawasaki Z900RS Everything will be alright in the end. Oil choices have a lot to do with personal preference and anecdotal evidence. Thread starter mike916sp; Start date Sep 7, 2007; Status Not open for further replies. Check disc brake fluid level. But I notice it is the sealer of recommendation these days on my truck differential. A side note that came out of my inquiries was ancient racers before belt drives having triplex chain seizures if using primary oil above 20 grade 'weight'. The inner cover was bowed by about 0. Thread starter ashman; Start date Jul 16, 2013; Status Not open for further replies. Putting ATF in there wasn't helpful as it just comes out even faster than thicker oil. Straight 40 HD Oil. MS850. Jul I've also had a serious problem with oil migrating to the primary if Well the engine and gearbox are rebuilt and hanging on the new engine plates and I am beginning to think about installing the inner primary chaincase,sprockets, alternator, and clutch. Then I used a torque wrench and at 10 foot lbs it started to leak less and the same at 15 foot pounds. M. Thread starter fireflake purple; Start date Oct 14 The manual says that i should use the engine oil on the primary ,but the man i purchased my bike from did use ATF (automatic transmission oil) on the primary ,what will you recommend? Hello all. akira shimomura; Nov 18, 2024; Norton Commando Forum; 2 3. K. This technique produces very tight clearances. Now head scratching time, oil in the pan will not fill a pint pot!! Norton Commando Forum . The following advice is intended for Norton Commando & Dominator Motorbikes. REGISTERED IN ENGLAND NO. Researched as best I can, am ok about fit up and alignment, would like some honest feed back on advantages/disadvantages from members who have run them long term Regards Mike Have realised my gearbox oil is low on my Norton model 50 350 1957 - I have some Titan ATF3000 oil in my garage, would this be ok or could anybody suggest a more suitable oil? NO, this is made for automatic transmissions and Have realised my gearbox oil is low on my Norton model 50 350 1957 - I have some Titan ATF3000 oil in my garage, would this be ok or could anybody suggest a more suitable oil? NO, this is made for automatic transmissions and Another advantage to using ATF in the primary is its easy to tell if your crank seal starts leaking, as the primary oil will turn from red to brown. 1; 2; Next. Nov 24, 2024. What Oil Filters Leaks Norton Commando 750 breather? Balance factor ; 1940 16h; Strobing the ignition ; Flat tank replacement; Dominator Side Stand; THE NORTON OWNERS CLUB I am feeling my 75 years right now and I apologize for even posting this problem of leaking at the primary. I know there is a tool for the MK2 and below Commando's but this does not work on the MK3. and now I have a big vibration Fill the oil tank again and go for your rides. This seems like a simple problem, but I replaced the primary cover o-ring with a new one from Andover Norton on my '71 Commando and it drips abou half a teaspoon of oil after a short ride. How to install oil seal disc and felt seal in inner primary? (2008) Thread starter BrianK; Start date Jan 15 1967 Atlas primary chain case oil 80w90 Gear Oil GL-4 Mineral Suitable for vehicles requiring an 80w90 GL-4 Mineral Gear Oil and fully suitable for use where yellow metals i. NOTE: The following instructions are written for running oil in the primary, and call for using silicone. jimbo. Currently the Norton separator allows to much oil to get through it and into the airbox, this is because it's a very simple design as it must allow the oil collected to flow back into the crankcase when the engine is switched off. uk It does direct oil around the transmission shaft and may help reduce When I got my bike and then installed the Alton, I had massive primary oil leaks as I didn't use a torque wrench and tightened lightly. Keep the pressure on it and since it is a taper fit, it wouldn't hurt to use some side pressures on it, but I have the primary apart on my 72 750 to cure a really bad leak. i did my primary gasket once using the latter and never had a leak. • Norton Commando Timing Cover Tightening Order and Screw Length • British Motorcycle – Cable Color Chart Norton Commando Forum . Proper way to change the OIL. - does anyone have any recent experience Norton Commando Forum . Mk3 Primary. Oil leak from gearbox. Thread starter CR125Honda Dealing with a issue in the Primary. 312288 is MK2 850, MK3 starts 325000,so seal is same as 750 for your crankcase and is where the oil from an overfilled sump is coming from. Any more than is necessary to get slopped on the chain is wasted effort and Does anyone know whether it is possible to run the primary chain on a Norton ES2 without the oil in the primary chain case? The main culprit for oil leaks on my Norton is the Commando can work fine with same oil in forks gear box engine and primary though forks might be harsh with 50 grade in them in cold conditions. I decided to drain the oil oil anyway and top off with the correct level so I could keep checking for a blown crank seal. Overfilling oil tank and oil tank dipstick length. Commando's are a thinking man's bike with too much time and money to put into something more practical useful that lasts long. Well, the SOB leaked again! I went in again and found the oil seal bone dry but found oil leakage at each of the 3 inner primary mounting bolts. Using the primary as an engine breather does nothing for the gearbox oil issue. " Next paragraph "Pour fresh oil into the filler cap orifice until it begins to run from the level plug hole. As long as the the chain is getting a bit wet, that is enough in my opinion. What I found is the felt If you done a oil change a week ago one thing with Commando's is to only fill the oil tank to the 1/2 way mark on the dip stick if you keep it on the top mark you will lose oil and Do not use sealant at all when you use a new rubber, in 47 years I have never used sealant on the primary just replace the rubber when needed, usually you can remove the cover I was alerted to a problem when I first got my mk3, by glitter in the primary oil. Menu Log in Norton Commando Forum . Its not centering properly in the seal and that is where its leaking from. Oil in Tachometer. Researched as best I can, am ok about fit up and alignment, would like some honest feed back on advantages/disadvantages from members who have run them long term Regards Mike When I got my bike and then installed the Alton, I had massive primary oil leaks as I didn't use a torque wrench and tightened lightly. Good enough for me. If so, the crank seal is likely cause. jimbo; Oct 3, 2024; Norton Commando Forum; Replies 5 Norton Commando Forum. Don't piss around trying to clean the engine as well, nor should you ever use any flushing oils. No issues. Amal Carb Information Norton Commando Tracker Best Norton Commando Oils. Forums. Classifieds. I’m new to this site and to Commando’s but not new to British and other bikes. Cheers. Martin, there is a oil level plug (slotted screw, bottom center) in the Mk3 primary case. This stresses the oil under high shear conditions and gives a good indication of the heat produced by friction. If its not alright, its not the end. If none or little oil dumps out on removal, that is Norton Motorcycle Forums. Thread starter beast; Start date Jun 24, 2022; Status Not open for further replies. I also raced Yahama engined sidecars in the 90's on Super 4, never had any problems with lubrication. BUT, I see no harm in using an 0-ring chain in the fairly well sealed P11 primary? Maybe the primary has been over filled for oil to get out of that felt seal, 7 fl oz of oil max in the primary, I usually run between 5 to 7 fl oz of ATF type F oil, the oil splashes on the chain to keep it lube. Go. Oil can also seep through at the It would be interesting to know how many miles owners have covered using their electric starts with ATF versus the recommended back in 1975 engine oil. If it's wet sumping then your crankcase would be full of oil. All Classifieds New listings. I am wanting to fit a RGM belt drive primary side to my straight low mileage '73 850. Primary belt drive problem. C. I’m ready to install the inner primary cover on my Commando. for big valve conversion, new seats for unleaded fuel, my crankshaft to balance, new pistons, new camshaft, etc. Joined Jan 16, 2015 Messages 5,842. What is the proper way to check primary case and gearbox oil levels Hello: I´m new in the forum, I own a Norton Commando roadster 850 MKII from 1973, I have this bike from 1985, and two years ago I restored the bike , specially the engine, I´m from Spain , I sent my cylinder head to U. The Workshop Manual specs 20W/50 oil. Joined but since the oil in the primary does not circulate through the rest of the engine you don't have to worry about it coming loose and clogging an oilway. Jun 24, 2022 Check primary oil level by removing the primary case oil level bolt at lower left side; TBF, if the gearbox with OEM gear oil had been notchy/troublesome and had the ATF made a noticeable improvement, I might have come to a different decision. Replacing 850 mk3 - the gear lever cross shaft goes through a Bush and oil seal as it exits the cover. jimbo; Oct 3, 2024; Norton Commando Forum; Replies 5 Views 193. 1; 2 About the primary oil in the Norton Command 750. Thread starter Dogscout Bronze dust in box oil a sign too. My Dominator wears a If your primary is full of oil then your probably getting it leaking through the clutch rod. Joined Dec 26, 2007 Messages 230. /lb. " Commando fork oil grade. Joined Jul 11, 2010 Belt drives are good for racing and for eliminating oil leaks from the tin chain case on earlier bikes. Thread starter Mart UK; Start date Mar 28 Is this arrangement for adjusting the primary case to the plain set by the crankshaft oil seal. The gasket sealing goop on the threads was hard and cracking. Examine disc brake pads for wear. The micron Seems the currently available primary rubber band seal doesn't last more than one assembly. Nov 19, 2024. Section C25 of my Norton workshop manual discusses how to service the oil pump. K. Found engine oil in primary, suspected leaky main seal. So it isn’t necessarily what you are looking for in my opinion. and am trying to understand the gearbox oil situation, and have a question: does the gearbox and primary drive share the same oil? TonyA. 00 0 The inner primary must be shimmed on It's central support post to achieve perfect flatness first. Previous experience with Commandos has always been that this felt seal is a source of leaks. Thread starter htown16; Start date Nov 28, 2014; Status Not open for Last time I rode it, the primary "Slopped" would be something of an understatement, I think! As the layshaft assembly, with its four gears running semi-submersed within the gearbox oil-even taking into Norton Commando Forum . It says the following: "The outer end of the rocker spindle must be aligned so that the two slots are in a horizontal position before it is driven flush with the jointing face. Oct 3, 2024. One of my winter bike improvement projects was to try and stop, or at least significantly slow the leaking from • Oil pressure release valve (13. 50 SAE40-50 10W 40 confused . Seen quite a few commandos with the belt shredded and the rider stranded, I am considering using the oil in the engine of the Atlas or 99. on my 1970 fastback i fitted a filter as well as an oil cooler so i have double the number of iol pipes as regards routing through the cradle this is ok as I do noit have to adjust the primary ever as I threw the chain away years back and fitted a belt conversion which has never required adjustment since fitting, and also asllowed the cluth to run dry which is Hi, I've been lurking around the forum as I've been very bold & not using my Norton much!! Back in 2021 I asked the same question about the alignment tool for the MK3 inner primary. Thread starter koda; Start date May 9, 2011; Status Not open for further replies. Drove it around today had no problems, kind of weird noises, but no major leaks. In the past I've only used these on pre-Commando models (Atlas' & ES2) where the tin primary covers always did a poor job of keeping the chaincase oil in. ATF should be fine too. 0367) 25 ft. My MK3 always has a very small oil leak. tpeever. Shimmed correctly on the center stud, black (VERY oil resistant) RTV applied around the stud, A good idea, when you do change the oil on a Commando, is to replace the drain plugs, add the correct amount of oil but leave the filter off. Now head scratching time, oil in the pan will not fill a pint pot!! I am wanting to fit a RGM belt drive primary side to my straight low mileage '73 850. ashman. Dec 20, 2020 #9 It tucks away quite neatly. In this video we assemble the entire primary chain case assembly on this Norton Mk3 Norton Commando oil leaks. Share: I am wanting to fit a RGM belt drive primary side to my straight low mileage '73 850. I agree that an O-ring chain is made for unprotected applications. Replies 41 Views 1,159. MK3 clack in primary. VAT REG NO 368 8236 11 Norton Commando Forum . Norton Commando Forum . Thread starter jorgenbg; Start If it is over full then you may have a crankshaft seal failure which when the engine wet sumps (and it will!) the oil seeps into the primary and can find it's way out between the clutch and gearbox. • The condition most likely to create oil-destroying temperature is reduced airflow over The inner primary must be shimmed on It's central support post to achieve perfect flatness first. Russ . This seems like too much. Mk3 Primary case oil. Hi There , Is there anyone who has replaced their sealing disc's on the inner primary and has either used pot rivits or small screws to secure the felt washer and has a pic ? I can't get to a local shop to spot weld , so I'd like to see a pic of this alternative method so I can see what type Another advantage to using ATF in the primary is its easy to tell if your crank seal starts leaking, as the primary oil will turn from red to brown. Access Norton Default Dark Theme Terms and rules; Norton Commando Forum . htown16. Commando fork oil grade. Menu Log in Always used Morris 20/50 golden film in primary case and forks on my 1952 Es2 Norton. Leaking a lot of oil all the sudden. Hope this question makes sense. HT is correct. Jan Norton Commando Forum . Oil leak. Thread starter hillbone; Start date Feb 8, 2010; Status Not open for further replies. • The condition most likely to create oil-destroying temperature is reduced airflow over The idea is that oil from the separator will end up back in the crankcase rather than the airbox. Billy When a little oil appears on your finger, the level is right. Joined My RH10 head has two different sized Rocker Oil Feed Banjo bolts - the larger on the Primary side. The outer cover can be removed to access it. Thread starter seattle##gs; Start date Aug 23, 2016; Status Not open for further replies If you change the primary oil (always a good idea after a layoff since it runs a little colder than (For TRIUMPH BONNEVILLE 1975 and NORTON COMMANDO 1973) Thanks" "Hello Serge, All Spectro motorcycle oils contain 1800ppm of zinc Engine oil getting into primary case, MK3. Just changed the oil on my brothers 70 commando,central oil tank. But as it was, with nothing gained, I was more comfortable with gear oil than ATF in that application. Joined About the primary oil in the Norton Command 750. i wouldn't do that. 7630, with thread sealer. Likely a gob of Norton Commando Forum . Obviously you mean the primary chaincase not crankcase? baz. " Yet, my engine cases are porous and weep oil at the front. Share: I am a minimalist when it comes to primary oil on my Commando. Norton Mild EP Gear Oil is a SAE 110 extreme pressure automotive gear oil meeting the requirements of API GL-4 for moderate to high load applications. But as you have no oil showing in the primary when running that suggests its only leaking very slowly when the sump is full and the engine off, a new seal may be no better as possibly the crank journal is scored. Oil leaks, yet again: usually due to distortion of the chaincase outer Leaking chaincase outer. OTOH, I'm quite comfortable with ATF in the primary chain case instead of the spec oil. Put some engine oil in the primary after draining it, because the engine might not share it very fast. New Norton 1974 850 Commando owner. Ran my original commando in the 70's on Castrol GTX 20-50. Engine voltage warning light. Primary chain. Could it be that simple? *Yes I know not to I too have an 850 MKIII. A. Try it. Submitted by martin_champion on Sat, 02/04/2016. I do not have an owners manual and it seems the shop manual does not mention some basic but need to know stuff, so here is my dumb Norton newbie question for the day. Primary Chain Adjustment. Getting hold of 10W20 for the forks is proving more difficult than I expected but got others on the way now and anna I will try out the Lucas Primary chain Norton Commando Forum . I'm in the process of putting my '72 I finished putting it on and rode the bike for a little while with the belt drive fitted. • The only place on the I would recommend fitting a filter to your early Commando. If anyone has tried this I would be interested in whether it was successful and which oil seal they used. I read about shimming the Hello all. Thread starter Fast Eddie; Start I've also been using this oil on my Commando. Joined Dec You really need to take it off and see what's going on inside the primary. Drain the crankcase via the You MUST seal the threads of the 3 1/4x20 primary screws or they will almost assuredly leak engine oil into the primary as soom as it wet sumps up to the bottom screw The primary oil level is purposely to be kept a little below the bottom chain run, for good reasons. Primary Oil Level. Hi, I've been lurking around the forum as I've been very bold & not using my Norton much!! Back in 2021 I asked the same question about the alignment tool for the MK3 inner primary. Thinking this probably an oil seal problem I have stripped down the primary side and found one definite problem and possibly two more. After rebuild I asked ancient Norton racers on NOC-UK, Brit Iron list and INOA fourm about ATF to be told that was their standard in AMC boxes. Primary chain lube . And, the transmission drain plug yields a drop here and there. Thread starter Commando74; Start date Jun 2, 2008; Status Not open for further replies With the bike upright, remove the level plug and then fill the box slowly until oil starts to run out of the drain hole. I rebuilt my engine and started it but after about two minutes there was still no oil returning to the tank, Norton Day - Yes. I discovered a label for Silkolene Castorene Classic R40 and the bike has a sweet smell to it. New posts. co. alans. A review of correspondence from NOC-L. Thread starter Nortorious; Start date May 31, 2021; Tags knock knocking About the primary oil in the So, which is the best primary drive oil would you reccommend? Or is it not really a big deal? The Norton book sez SAE 20w-50 7oz. What has ALWAYS baffled /amazed me is that no one has Norton Commando Forum . Thread starter 71basketcase; Start date Nov 11, 2012; Status Not open for further replies. If it were simply the Norton Commando Forum . I use the oil-level plugs/indicators for determining the correct oil volume. I do think Redline Mild EP Gear Oil is a SAE 110 extreme pressure automotive gear oil meeting the requirements of API GL-4 for moderate to high load applications. Next Last You are going to put oil in the primary case? Don't even think about running the primary case dry, the sprag and starter gear train needs oil. On my first Norton I used to use 90 wt. Norton Oil pump stud nuts (no washers, 2 nuts, 06-7592) 10 to 12 ft-lb. Looking for some advice. I would think there is less rolling resistance with a belt. About 700 miles after a rebuild. Prev. Which oil to use for your Norton Commando Commando 850 Mk III Engine 325000 -> (1975 - 1977)? A complete overview of all components such as the engine, transmission (transaxle), 1970 T120s share the engine oil with the primary drive. Clean spark The oil testing is done with a set load at 220 degrees for the first 30 minutes. But if you remove the P11 cap you can see only a part of the chsin in the bottom side. com :?: :?: :?: Forums. Left the spin on filter, will change next time. And. 12037569 . Joined Mar 11, 2021 Mk3 Primary Oil? possm; Aug 6, 2020; Norton Commando Forum; Replies 4 Views 1,492. H The 850 MkIII Manual and Riders Hand book recommends 20w-50 engine oil Amal Carb Information Norton Commando Tracker Best Norton Commando Oils. Researched as best I can, am ok about fit up and alignment, would like some honest feed back on advantages/disadvantages from members who have run them long term Regards Mike Norton Commando Forum . On Thankgoodness me stored wet sumpers don't spill into the primary, so far. Years ago in the 70s on my 68 commando I drilled and tapped for a 1/8 When the oil is at the top mark there is not enough air circlation in the oil tank and because of that the oil will blow out of the vent hose, most experience Commando owners only Amal Carb Information Norton Commando Tracker Best Norton Commando Oils. Changing primary drive oil, ALOT came out Thread starter nidyanazo; Start date Jan 16, 2009; Status Not open for If there was too much oil in the primary case, look for evidence of the crank seal or crankcase-to-primary mounting bolts weeping. Thread starter N0rt0nelectr@ Start date Aug 2, 2015; Status Not open for further replies. 1 of 2 Go to page. Your primary chain I’ve noticed several Forum members have recommended ATF for the primary chaincase lubricant. After 500 miles I had to adjust the chain, at just over 2000 miles the chain was knackered - maybe a bad chain - but I went back to oil in the primary soon after. 040, couldn’t stop it with silicone gunge, so, assembled inner with bead of silicone in the o ring groove, then fitted o ring, use smear of grease on outer cover, clamp up with central nut, but using 2mm spacers in between the casings to Yeah, I've always read that moisture accumulation is one of the big reasons for changing gearbox oil on a regular basis. I did attempt to post Norton Commando Forum . I use 20w-50 in the engine and primary and 90wt gear oil in the gearbox. I put a light coat of Permatex Aviation Form-a-gasket on the O-ring, no more weeping. Oil all control cables. Oil pump stud nuts (no washers, 2 nuts, 06-7592) 10 to 12 ft-lb. Apr 6, 2023. Jan 31, 2018 #13 YES Norton Commando Forum . I have a new felt seal for the transmission shaft to cover interface. Just enough to piss me off. I think that's what caused the inner primary chaincase oil deflector cup. I know as I have been reminded several times on this site - the Commando was not Norton Commando Forum . I use . Oil Consumption issue. As it is on the "wrong" side, I put the bike on the centrestand, use a brick, place an empty/used oil container on the brick & have a funnel that, when inserted into the empty/used oil container, is just the right height to sit under the drain hole. What This might help someone. I’m sure this question has been asked before – just need to learn how to search. LAB, I mentioned removing the inner primary to replace the gearbox mainshaft seal and spacer ring as well as the felt seal on Norton Commando Forum . No, it wasn't necessarily any smoother, a Shop Norton Clutch and Primary with the largest selection. As I have new plates to weld in I was wondering if a conventional oil seal could be fitted and the plates then spot welded to hold it in place. With no problems. ozcruiser; Yet, my engine cases are porous and weep oil at the front. It is suspected that the 200cc amount • The Norton Commando is capable under extreme riding conditions of experiencing engine temperatures that can cause rapid breakdown of commonly used oils. One of my winter bike improvement projects was to try and stop, or at least significantly slow the leaking from What make & grade of oil is best for my Commando gearbox? 1973 750cc Commando Interstate THE NORTON OWNERS CLUB LIMITED . 90 grade gear lube is like 40 Norton Commando Forum . Stick with ATF but make sure you get type F - the more common Dex (which you may have used on your other bikes) is no good if you get it on your sintered bronze clutch plates. MS850; Apr 6, 2023; Norton Commando Forum; Replies 4 Views 434. VIP MEMBER. This might help someone. I've had the Norton for only 4 or 5 months so excuse any dumb questions about it's nuances. Mk3 chain or belt primary ?? Thread starter The yaki; Start date Jun 5, 2024; 1; 2; Next. It is about 6mm to 8mm tall and the back of the clutch basket sits just off it. Box oil entering primary other than the known pushrod tunnel Amal Carb Information Norton Commando Tracker Best Norton Commando Oils. Thread starter DOXFORD; Start date No oil to leak out of the primary. uk. norvilmotorcycle. 850 Mk3 Primary Drain Plug. Then try checking primary cover oil level bolt to see if you have excess level oil inside. Joined Apr 18, 2021 Messages 14. Having a Mk I 850, my primary has the one cover bolt and large O-ring seal. If the bike has been standing for a long time, you will need to drain the sump, [ and probably let some oil out of the primary drive, [ as the oil in the sump can move into the primary and over fill it ]. Menu Log in Engine oil is fine ,primary oil has been changed at 1000km ,3000km ,7000km and now at I just got my 74 850 commando and also a Hyanes shop manual. Commando is very easy to take a control of the primary chain thighten: remove the outer cover cap and you can see and touch the chain. Installed another new crank seal and sealed the inner primary bolt threads with gasket sealing goop along with new tab washers. mike916sp 1974 Norton Commando Remove Engine from Frame, How To Article with Pictures. jorgenbg. In my bike my seal was brand new and if the sump filled, the oil would fill the primary every time. Thank you. T. The later Commandos got a filter for a reason, better durability resulting from nice clean oil. Thread starter fireflake purple; Start date Oct 14 The manual says that i should use the engine oil on the primary ,but the man i purchased my bike from did use ATF (automatic transmission oil) on the primary ,what will you recommend? 17) Degrease the oil drain hole in the outer primary cover, and install the drain plug, part # 06. running with oil. Thread starter htown16; Start date Apr 16, 2018; Status Not open for further replies. hypoid gear oil, as recommended in the owner's manual. I contend that following this procedure may cause the oil pump gears to bind in service. As arguementative as BDM was, I fully agreed that the too high primary engine type oil Norton Commando Forum . The atlas is particularly hard to kick over (actually impossible for me) so a thin oil may help,but if any gets Yes, but for running a dry primary chain you want a lubricant that does not fling from the chain. 1st Ride out and Primary Leak? Thread starter Is the drip leak thicker transmission oil or the thinner 20 W / 50 primary chaincase oil is the goal to ask yourself . rgmnorton. TonyA. ML. Thread starter Kool_Biker; Start date Dec 6, 2014; Status Not Alway check when hot to be sure. The manual provides necessary technical instructions. Oil. Commando 750 motorcycle pdf manual download. I've flushed the primary oil a few times but continued to hear, what to me sounded like a chain rub noise at around 3K to Norton specified "150 cc of SAE 20" oil for the Commando forks. AMR oil pump/checkball mod, re wet sumping. No leaks but that is not how a surface o'ring seal should be designed. chasesa. Oil technology has obviously moved on but is it stillbest to stick with what the manual states. moreso, i'm not sure what sealing that will do to chaincase pressures. I use tractor universal oil (high-spec 10-30 diesel oil, no additives, used for engines, transmissions and hydraulics and also cheap) in my chaincases, and my tractors. Mark Savage. Knocking in the primary case. mk3 primary oil. Primary leaking. Re: Primary When draining or siphoning primary oil it will Norton Commando Forum . B. Camshaft sprocket nut (06-7774) 60 to 80 ft-lb depending on cam metal. Home; How To Articles; The two oil tank mounting bolts were loosened to Norton Commando Forum . B roads well all ride • The Norton Commando is capable under extreme riding conditions of experiencing engine temperatures that can cause rapid breakdown of commonly used oils. Thread starter Mart UK; Start date Dec 9, 2022; Status Not open for further replies. The oil seal between the engine and primary case is easily overcome by the pressure the engine sump can create when those massive pistons both come down together. Thread starter alans; Start date Mar 14, 2020; Status Not open for further replies. Mark III primary chain tensioner (2015) Thread starter lazyeye6; Start date Apr 30, 2015; Status Not open for (200 cc) of oil in the primary case. Log in Register. 2) Inspect the inner cover sealing Norton Primary Plug Tool SET 750 850 Commando Matchless G15 P11 Beautiful STAINLESS copies of the factory Norton plug tools, I Then refill as book states and run the bike a few days. 1) Remove outer and inner primary chain case covers. If you fill the primary with oil until it weeps out of this opening (per the manual) it is about 300 cc, not the 200 cc (pre-MK3 spec) in the manual. Mart UK. wgplojugertdongpjqaimtuwmmciyvdgjvifxjlyrlpfwgliqvf