example of such marking.

7/32 inch (5,55 mm).

Has CNW electric start and other modifications. shaft, which in many cases is missing in actual gearboxes, and

You also have the option to opt-out of these cookies. The current label has 1972 in the same location. Instruction and Maintenance manual, a clutch puller is not always Now a black Interstate.

The factory record has no headers so it's difficult to know for sure what each column means.

Survey of gearbox internals I know it is early, but would like to know the exact year if possible. "S" Model.

Mag wheels, right shift, rear disc brake on right, number mach unknown, More info coming. (sidecar), According to EM Franks (see ref : 13, Frame No. Does anybody have data on the AMC gearbox serial numbers, which numbers in the series belong to which years? Serial and Date from Cetrification Label, currently has no engine or gearbox but is titled/, Being rebuilt - almost done - Mar 8, 2022, Last Registered in NC Oct 92, 21,121 original miles, runs, "Fairly certain the head & cylinder have never been split.". br.) problem has been to just remove one steel and one fiction plate.

European date 3/9/75 = Sep 3, 1975.

Curiously, data on serial number progression doesn't seem to have been documented (or if it has I've not been able to find it), although I believe Don Madden (N. America section) has collated some numbers in a listing. Bought in Philadelphia Pa, Unknown linage partial chopper not running Engine and trans match, to many parts missing to rebuild original. Came to me as a roadster, has some unusual features, superblends which looked factory original, original standard cam, regular compression head not stamped, definitely not a Combat head, 32mm ports on head and 32mm carbs, disc brake, must be one of the post Combat 750's, completely restored and on the road", Matching numbers yellow Roadster, seen on Craigslist in VT, 12/31/21. the Clutch Spring Studs (6) are mounted onto the Clutch added to them, but I have no personal experience of this. direction. "Came to me as a Roadster, completely restored and on the road". ; Was a Black Roadster, being rebuilt as a Red Roadster.

From the factory record.

about the bad working of the clutch after installing new clutch plates. Black Commano Roadster, Matching numbers. I have a 1975 MK3 850 Commando in Roadster trim. It can move a bit. Engine and Cert label match, gearrbox doesn't. For more information please contact your preferred Norton parts dealer or Andover Norton directly. Bike is in NZ, recently imported from Samoa.

he Commando as it related to the numbers made and some of the changes over the years.

mud. between the 16H and Big4 boxes apart from the gear wheels.

any identifying marking on them to tell you what it is. measured from an actual washer). Also, the number on the frame only has five digits - 00109. Actual engine number: 20M3S 133941, was originally a S type Commando despatched from the factory 14th August 1969 to New York, NY. This can My assumption is that 313739 was crashed and 235196 was used to rebuild it. nuts (1). Wide sprocket for 5/8" x 3/8" chain. Blue matching numbers Roadster, no tank stripes and no big flakes. It was sent to Challenge Motors, Barcelona Spain Nov 21, 1972, The machine was a white tanked Interpol and was sold to Leicestershire police by Roy Hamblin Ltd. : 113633, Date Off Track: 24 Oct 74, Date Passed Test: 25 Oct 74, Date Packed: 28 Oct 74, Date Despatched: 5 Nov 74 to NTI, Color: F/S, According to the factory record: Batch No.

The certification label was removed for pwsder coating and lost. A Roadster model dispatched from the factory on December 15, 1970 to agent/dealership Europacar, USA. Verified as an S Code. Part no. B4 Parted out - Engine cases seen on eBay 12/19/20, 3/19/21.

Engine and gearbox rebuilt at 40,000 miles. he owner said he bought the bike in MI from a guy who bought it in OH. number N8001E) and do not have

view of the M&I Manual shows a dished washer at the end of the main

thanks for info ,much appreciated,im in melb aust.

I think it was Matching numbers and originally a Roadster with a red tank with white pinstripes. I have a 1975 850 Mk III Commando Roadster, either US or Canadian export version (It has a Canadian Warning Light assimilator).

Seen on eBay 10/3/20: Norton Commando Roadster. ; From factory record: Berliner - No colour info, presumably because they were only silver at this time? Number is in the VMCC records, but entry is blank. It is therefore registered as a 1975 bike by the NZ Transport authority.

I have N7073 casing in my, You would have found your answer here in search of the norton board past posts.under ""gearbox". With good springs there will not be any slippage, and the front Engine and frame no. In 1978 I bought a 1973 Commando. Owner's notes:

I am currently replacing the frame as both rear down tubes have fractured. A black matching numbers 850 MKIII Roadster, I have shipped her to Dubai twice, now we're back in the UK, I did have the original Virginia title, but unfortunately it was lost with house moves. ; Black Roadster delivered May 22, 1970 to Gus Kuhn, London. Engine and frame numbers are - 334003. Probably a MK2A. Fromn Craiglist 8/21/21 Good condition, numbers matching, Disco Ball blue, Tri-Spark, cNw oil tank mod. sheet metal part of even thickness.

Dispatched 10 Apr 1975. It lists two dates 4-5-71 and 7-4-71. or only the later ones. to the W.D.16H machine. page), "For civilian purposes a 21 or 22 tooth engine sprocket Red Interstate.. Seen on Access Norton 5/28/2022. The frame listed is the original frame.

MK2; MKIII style short swingarm bushes with Welch plugs, slotted chain guard. Colour will be changed to yellow, although the original black body work will be preserved. The gearbox for LH shift bikes. Seen on eBay 8/21/21. Owner says:that the Certificaiton Label has the whole word APRIL stamped along one edge (looks original), assume April 1970 build, bike has been owned by my late uncle since 1978, has 13,000 original miles.

Dismantling and re-assembly of the Norton 4 speed gearbox is The washer is given in the It was a Hi Rider restored to a Roadster by the previous owner. Today, this is a fully restored S-Type in blue and all matching numbers. : 114572, Date Off Track: 23 Oct 74, Date Passed Test: 5 Nov 74, Date Packed: 11 Nov 74, Date Despatched: 26 Nov 74 to USA, Color: Black. More investigating needs to be done. I bought it for $600 about 18 years ago and kept it in my shed until I retired so I would have time to work on it. Seen on eBay 4/9/22. 06-5206 is for the Commando 850 Mk.III gearbox. A not uncommon problem encountered when using the MC is that at a Thrust Washer is 1,58 mm or 1/16th inch. I wonder if it had a dealer frame change. But opting out of some of these cookies may affect your browsing experience. MK2A first registered in the UK Jul 74, Black barrel, black box air filter, balance pipe with split collets, long swingarm bushes, no chain guard extension, black Roadster. From Andover Norton's "The Source". chain length accordingly. The letter D shows in many places, and I'm assuming and guessing it represents 1974 just speculating, MKIIA Built Sep 27, 1974, dispatched Oct 5, 1974, Batch 31/74 543, sold in England. certain point, the clutch bolts eat metal away from the outer In its quest to offer assemblies to complement the vast range of individual parts available, Andover Norton now has complete Commando 750/850 gearboxes available, which have not been available off the shelf since Commando production ended in 1978. by burrage Thu Nov 09, 2017 7:09 pm, Post

(See also exploded view below), Survey of gears for military and civilian Gearbox: 206163, Registered as 73, Seen on eBay 8/6/21.

(as The bike is now me in SW France. It has matching numbers. Not sure of its original colour, as I had the T-M people convert it from a Roadster to a Black Interstate, but retaining the peashooter exhausts before shipping it to me in Canada. disengagement problems can be caused by spring force differences and According to the factory record, this was the 10th built on Mar 10, 1972 and it was a black roadster. Yellow Combat Roadster. Now in Germany, rebuilt from a basket case, currently with "S" type exhausts, "halo" and Royal Blue Fireflake. Matching numbers , Partly rebuild as a Black Roadster but is really an S-Type. should be fitted to the sidecar wheel drive outfit (W.D. Below also some pictures of various gearbox parts, (source: (Main Gear Wheel Sleeve Bearing of the entire transmission system from engine sprocket to rear According to the factory record, this was the 42nd bike built or dispatched (not clear which) on Apr 4, 1972. The gearbox is 235196 so in the special 73 serial range. primary chain case. Springer front end.

I am not going for a concourse finish simply servicing everything and replacing all service bearings, etc. frames using imperial tubes. allowed on the Bronze Clutch Thrust Washer. It is not a matching numbers bike the gearbox has the same number as the frame. sprocket sizes (see above), it may be necessary to adjust the the main axle should be shimmed behind the Clutch Worm nut.

War Department Big4 gearboxes are however indentified by the gearbox No title. I've also been told that the Reynolds number would match the engine. number, usually engraved into the gear wheel by the N80xx number.

It was wrecked in the 1974 and rebuilt using parts from 209458 as a black Roadster.

I inherited the bike, and I am restoring it to road worthy condition. 1974 Metal flake blue 850 Commando High Rider, now in Roadster trim. Seen on eBay 7/24/21,Project, Drum Front Brake, Actual engine number: 20M3S 151159, NOC Record shows: Build Date: 23 Sep 71; Model: Roadster, Dispatch Date: 30 Sep 71 to Harry Firth, Danforth Street, Toronto. If the end float is still outside this range On the subject of laydown boxes,can anyone tell me if gear pairs from an AMC box can be fitted directly to a laydown ,specifically first, second and third gear pairs.I know the ratios will be different to some extent,but that doesnt matter.I was in the NOC,and no one on the forum would answer this question,instead posting pretty color pictures of how gearboxes work.I dont want to spend money on stuff that doesnt fit, and postage.Regards John. ; Seen again in eBay 12/9/20 now listed as an 850.

Parted out- Cases seen on eBay with title, 11/08/21.

According to the factory record, this was the 25th built on Jan 4, 1972 and it was yellow.

Thanks guys. It has an Imperial frame.

It has the old style centre stand and the side stand is in the middle of bottom section of the frame and very awkward to use. The main tube had a very noticeable bend in it - hence the frame was scrapped and a decent 1971 frame replaced it, updated with a later kickstand lug. Seen on Aus ebay], From AccessNorton - ?/73, 750 (Roadster, drum ft. More Info owner/owner's club: 134673 it was described as a Commando S type late 1969 correctly. This is usually caused by the loosening According to the factory record, this was the 43rd built on Mar 10, 1972 and it was a black roadster.