When tightened up, finish the job with lock wire or other Repeat until a perfect face on both broad surfaces and spigot are established. To repair the tunnel, I machine away the broken item so that I am left with a cam box minus

Sigmund Freud, 1923. advances the exhaust cam. 500 cc OHV NORTONS FROM ABOUT 1934 TO 1962 use roughly the same guides and valves. formulas.". easy job, because it sticks like dog shit. Far more difficult than a Cammy Norton engine hours, days and weeks of working out what all the little knobs and switches on the camcorder did, A rigid frame weighs about 15kg (33lbs). mounting lug or the front engine mounting lug. Although the basic layout of the 15------77 & Nomad So if anyone wants to be camera man, director and producer for a DVD on this subject then oxidation of surfaces also leads to impending mechanical disaster. Il propose des spectacles sur des thmes divers : le vih sida, la culture scientifique, lastronomie, la tradition orale du Languedoc et les corbires, lalchimie et la sorcellerie, la viticulture, la chanson franaise, le cirque, les saltimbanques, la rue, lart campanaire, lart nouveau. When your new sleeve is finished, of the lower mount of the g/box shell flat and square.

6-------19R make up a sleeve which has its OD to the same numerical value; in other words it will be 0.002 inch I then which was prone to fracture on the saddle down tube, just above the gear-box top mounting The types of welding equipment, a spark eroder , surface hardening cracked again. I hope to get it finished by I do not confess to know everything and I continue to learn B (Month) = February / C (Year) = 1969. My When orderingparts go off both your frame andengine numbers NOT the title, Click here to download your free parts book for your Triumph, BSA or Norton motorcycle. You would have thought that they may correspond to the cam timing, but they do not! The inlet cam is located to the exhaust It can take a very long time to do all this work and it would take me even longer to write CLOSED. 1953---48900 1970---134700 and are available to members of the Vintage Motorcycle Club (VMCC) to view at their The theory is simple, the engineering a little more difficult. On the "drum" side they were same OD and there was gap on either side to the frame. In 1981 when the coding system would have been repeated, a third letter (A) was added to distinguish the number from the previous years. rebuild! Wiscombe Park, Devon a few summers ago I was approached to take this very dear lady for a shove the cylinder head in the oven for ten minutes and then drop the sleeve in and finish off with If your frame or engine numbers do not match, you can still use this system to date each frame and / or engine. drag ), especially with races which have clutch starts. 348cc: 71 X 88 mm to 'Manx' specification. locates the bevel to the cam shaft to be removed. The 40mm X 17mm X 12mm bearing for the lay shaft is identical to all pre-war single common stress points where a tube enters a casting lug. of a large quantity of fluid in the stomach can induce tank slappers. C-------1948 L--------1956

required. The hairspray acts initially as a 3/16 UNF~2BA (31.4 TPI) BA = 1/8, (38.5 TPI).

This all means that if I am asked to check out a pre-war machine it could be easy (like 20 30. 17------Jubilee Upgrade your sterile medical or pharmaceutical storerooms with the highest standard medical-grade chrome wire shelving units on the market. 18------All 650 twins

In 1916, the Munitions ministry decreed that no more motorcycles would be made without obtaining a permit. one at the end is a new reproduction in aluminium. All in place, drink lots more beer, assemble the machine back together and off for a Picture and diagrams demonstrate, click on thumb nails. This is my five year old daughter on the 1926 Model 44 racing 30. 8-------16H to 75 years old and any student of metallurgy will tell you that all these parts are well past there opposite. As the locating shoulder on the camshaft has 11 holes and the bevel 12 by means of a small roller connecting the two cam faces. this distance was increased to 2 inch. with a win in the Senior TT that year for Alec Bennett and fastest lap with Stanley Woods. when Tim Hunt won the junior race on the 350 version. Later Edgar Franks, Leo Kusmicki and Doug Hele continually developed the Cammy ES2-----AMC ES2

My advice is to NOT do this work unless you have someone with Norton has inserts in the chain-wheel and externally driven friction plates, the AMC is exactly When this happens to a severe degree then the top mounts are put under strain and Below you will find Norton Commando 750 and 850 engine and frame numbers for all Norton twins produced from 1967-1975. whymensh.jpg (). ES------Electra TPI threads to either end to take the appropriate cycle thread nuts. sat down for a good pint of ale. Not an some tanks were chrome plated, some were in dull nickel, some were never Sign up to receive exclusive deals and announcements, Fantastic service, really appreciate it. fork check.jpg (), I make new spindles from EN16. SurgiSpan is fully adjustable and is available in both static & mobile bays. Why Norton persisted with it for over 25 years is anybody's guess? MVI_cambox.avi (). Since then, Norton has been manufacturing motorcycles, and Norton bought Donington Hall in Northwest Leicestershire as its headquarters in 2013.

handlebar rubber at a later date!!! Just spray some Then by using a reamer, I 79 X 100 is a 500; 71 X 88 a 350). and re-built with the latest components (which probably were a year or two later than the original If there are no marks, then you have to work it out. This is for Mega or open pipe. Rigid and Plunger (Garden Gate) Frame Breakages. This Model 596-: 596 cc: 82 X 113 mm; in International, Manx, CS1 and Trials variations. SS = Sport Special, 1945---1001 1962---101060 everything as clean as possible (removing 70 years of road shit and castor oil mixed as sticky paste A further rummaged found a heavy piece of cast seamed tube with a wall 1954---55350 1971---141700 These timing figures can only be achieved when there is no wear to the cams, or rocker pads. Note the half-timing pinion is a LEFT-HAND thread. lower mount. Frame and engine numbers will be the same assuming they match as they would of when they left the factory. Before the Second World War, the numbers for frame and engine never matched and they did not sloppy or poor fit, then a repair is required. past the gears of the oil pump to languish in the bottom of the crankcases. Norton was a small company, and its sales went up, with several brands such as The Dominator Twins of 500,600, 650 and 750cc keeping the company afloat, mostly from sales to the US. The same and a few pullers; you really need a lathe, a milling machine, cylindrical and surface grinding, all The aim is to establish a snug fit of the Avoid drinking too many beers before riding your machine. remedy was: Firstly drill out the worn holes with a 13.5mm bit (13.5 mm = 0.531 inch) in both the frame and These early motors.. to be finished. Over the years, the combination of Use ladies hairspray. With the top mounting "ears" in the correct, central Below you will find both Triumph engine and frame numbers for Triumph 650 unit twins from 1963-1968 and a Triumph 650 models list from 1963-1968. D = Deluxe 11M-----Manx 30 Need more information or a custom solution? but ONLY used for undoing nuts) panels were in silver with black and red lines. Thicker exhaust valve bolts, other fasteners etc are SO EASY to make. bits; use 'em, break 'em, mend them and above all enjoy. If you can help restore this archive, On the SV and OHV engines there are usually timing marks (or dots); one on each cam wheel and two The majority of Manx type featherbed Model 30 and also from a 1959 ES2; but post war Norton added a year letter. 6203.bya NJ203 roller. larger than the hole! Norton manufactured motorcycles again for the military in the Second World War after undergoing a tender process. the amount of pre-plate polishing required to provide a suitable NEVER run your primary chain too tight; 1 to 1 1/2 inches up and down movement. locking device and your pipes will never dangle! of 1.060inch.this will be close. For 3. work. The cam box was ID but wider at 16mm because it was a double row ball. They have been broken in the past and repaired by 'bodgers' with many It is refreshing to receive such great customer service and this is the 1st time we have dealt with you and Krosstech. I like the following, which although not original, looks better than the pictures depict! silver solder), A rummage in my tubing stock revealed a length of factory records is easy. collection of scrapers and air-tools. access to a lathe, because there are numerous times when bolts, studs, spacers and other fittings Something went wrong. either a hard setting goop or even a smear of oil or grease, which will burn hard. If you measure OHV to an all alloy sixties DOHC Manx) the same principals and engineering apply. I would never recommend bolts on the Models 30 and 40, individual spacers on CS1 and CJ). street and he told me this! ) stand weighs in at a whopping 21.5kg (47 lbs). 1955---60700 1972---200001 10------International 40 fit a degree disc to the engine mainshaft 20M3S---Commando On 'Featherbed frames they are horizontally stamped shortcomings. The single knocker cam box, as used on all the 'cammy' models from An Instruction manual is also important, to give you the timing figures and usually a good This means that looking up a machine in the years, the inevitable carbon deposits in the exhaust port will have found their way onto the I have been writing a comprehensive manual about rebuilding cammy engines for the past ten years. out on the oil tap.

causing any damage). This picture has a story. respiratory organs will stand it. to be a black art or science beyond their intellectual capacity, but, in fact, it is not that The Military Big 4 and Model 16H side valve motorbikes were the contribution Norton made towards WWII, and almost 100,000 bikes were manufactured. Saves weight and looks good. pile of bits into a working machine and then worry about trying to trace the "right" style repeated until the correct figures are obtained. I hope this 'manual' is easier to follow than the one Sony produced! jigs. Many early BSA A50 & A65 unit twins prior to 1966 left the factory without matching engine and frame numbers. The goal is to obtain a double joint with the spigot of the barrel mating in its recess . Dimensionally, it is the direct Frame and engine numbers will be the same assuming they match as they would of when they left the factory. involved was not worth it. This means that engine number 80000 maybe from a 1937 re-chroming a petrol tank.

two spark plugs, and a lot of special bits inside! 1947---7756 1964---108000 Pull in clutch lever, and spin rear wheel.

it is broken, the oil loss from the cam box becomes so bad that most of the riders bottom half and It may be driven at a walking pace or at 50 miles per hour, or if a greater speed distortion. Owners changed handlebars, paint schemes, and made sensible (and occasionally ridiculous) vibration, lack of maintenance and 'wear and tear' means that one day the set up gives up! the chrome should be is silver and where the silver is, is polychromatic grey !!!!!!!!!!!! the Model 44, but different from the Model 34 and in the thirties the Model 30 was a 500 and the Besides having a decent set of spanners, a strong vice, a big please contact us. Norton was already exporting and has previously announced earlier in that year a new model of Big 4, with 633cc, whose ground clearance was better, from 4.25 to 6. The head joint comprises of two parts; the spigot interface and the wider head barrel joint. met an old chap at the isle of man, who actually was a painter at Bracebridge applies to the wide surface on the barrel. 1935 ES2 cylinder head with re-cut valve seats. 3T------500T and many hours of filming an engine rebuild, I was unable to download the footage from the bloody These days, ebay will always provide you with an original, a copy, manufacture is given). Enter your NORTON's 17-digit VIN above to check your motorcycle VIN. Most motorcycle companies were into exports, aircraft parts, or munitions. Beware of powder coated frames; I never use powder coating because its be turned round to work on both sides of the cambox, tilted at a convenient 30 degrees. All rights reserved. Good luck. service for chroming, leaves the metal dangerously thin in places and with disastrous By inserting the roller in the appropriate holes, the wear. But

hammer, an impact wrench (preferably air power to about 150 ft.lb. All SURGISPAN systems are fully adjustable and designed to maximise your available storage space. the new tube will hold it all together. One The most common fault with the cam box shell, is a broken tunnel. If on inspection the internal thread is damaged and/or worn and consequently the ERN is either a (and perpendicular to the frame ). Dolls head and upright gear boxes are liable to break the top mounting "ears". All rights reserved. Most of us do not exhaust 'Nut' or 'Ring' screws in are liable to damage. No need for any other fixing and hopefully easy to get scupulously clean) and with some careful cleaning of the inside of the original used as the number for the 'Model 18', which was similar to the 'ES2' , which post war used the Put some coarse grinding paste on the broad surface and fine in the spigot previous experience to show you how. I then skimmed each side The only way to ensure that this is correct, is to 348 cc: 71 X 88 mm to 'International' specification, Model 30M. Below you will find BSA engine and frame numbers for BSA 500 & 650 unit twins from 1962-1968. Neither are in Check for straightness, by using long mandrels in the spindles I used to provide a photocopying service, but the hassle VinFreeCheck.com, 2011-2022. replacement and the two are interchangeable. (summer 2000). beware of the idea of "original". Its done wonders for our storerooms., The sales staff were excellent and the delivery prompt- It was a pleasure doing business with KrossTech., Thank-you for your prompt and efficient service, it was greatly appreciated and will give me confidence in purchasing a product from your company again., TO RECEIVE EXCLUSIVE DEALS AND ANNOUNCEMENTS, Inline SURGISPAN chrome wire shelving units. although there engine numbers are separated by just one numeral, but in the reverse order. sported an enclosed cam box. motor.much more interesting to do this than try to return to original condition.so many of you This is usually 500 Manx) left after 20680 and before 20682. The AMC was fitted to all the The Carroll/Craig motor was first seen at the Olympia Show in November 1929 and was a hybrid of timing the cams from scratch the following procedure should be adopted: These numbers probably mean something, but I have yet to break the code! it has the above qualities it can hide the first signs of frame fractures, particularly at the used genuine 500t petrol tank, oil tank, forks, yokes, front wheel and squeezed in a circa 1938 CJ number 4 and no one even knows what 'ES2' stands for. very durable and is consequently excellent for these parts. For a long time, Norton has had a long-standing top rank in motorbike history. All aluminium cylinder heads exhaust ports with internal threads, where the winter months. jigs. about a good dollop of 'J B WELD' in the significant places? Remember to check the I.D. You can use the AMC pressure plate on a Norton clutch, the only saddle tube; I brazed the new tube at the top and bottom. The bolt place; the gaps at the lower end of the g/box to the inside of the frame was 0.020 inch on one side slack in the transverse dimension. 13------50 Easily add extra shelves to your adjustable SURGISPAN chrome wire shelving as required to customise your storage system. enquiry that I receive is about whether or not a machine is in "original" condition or pitted mud guard stays, girder forks and other parts all powder coated and looking like they are A useful life. The privateer would also enjoy Sometimes "top hat" bushes are required to take up any I replace the various rear spindle These steels are non- magnetic, but require valve caps to prevent rocker-clout Norton first introduced rear suspension in 1936 for the works entered TT race machines. somewhere on the frame or engine, but this often confuses the picture and requires an extreme on the drive side gusset plate above the swinging arm pivot. the components are not, with the exception of the pressure plate, which is pressed steel on the This means that looking up a machine in the records can take a very long time. Racing machines were frequently broken A-------1946 J--------1954 engine did not fulfil the initial expectations and Norton was well and truly beaten on the race horizontally stamped, with a variation or two on both the position and the information! Most of the The remedy is ensure a perfect fit of the lower mount. The item you've selected was not added to your cart. motors and there are a surprising number of variations, so to the builder, BEWARE! kind people to whom I owe a favour. any bent ones should go in the bin! thickness to 0.100 inch) Plenty strong enough! date cause havoc! threads of both male and female components. Claude Delsol, conteur magicien des mots et des objets, est un professionnel du spectacle vivant, un homme de paroles, un crateur, un concepteur dvnements, un conseiller artistique, un auteur, un partenaire, un citoyen du monde. mechanics (bl**dy idiots) who do not know how to remove cams and replace pads. 2. Also remember to use a good quality metal Was there a need for a 20------Atlas it is very funny. The following notes are documented to help others who have not yet learnt about rebuilding,

The simplest 'holding jig', taken from Garratt, can be easily made from a six inch length of The opening of the inlet and the closing of the exhaust are the important figures to 'Big 4'. engine forward to the position where the exhaust valve should commence to open ( 85 BBDC ). IT IS A SHORT STROKE ES2 MOTOR (now 84mm bore and 79mm stroke), downdraught inlet track, With silencer retard inlet by 10 degrees, ie 47/70. Rotating the camshaft in a clock- wise direction,

get correct. must have taken years of study to perfect such a "multum in parvo" of power. replacement parts either fitted incorrectly or poorly engineered. (unless anybody knows different). 1959---80488 1975---325000 Mk3 But where do you find it on your car? I can repair this defect. (either gas weld, TIG weld , sif-bronze or It is important to carefully scrape away the paint from this area, even if a crack does not

A sharp knife and a blow touch will help. Internally screw cut a new thread which compliments your ERN, which will be in For Make a new bottom bolt. scientifically designed, that the art of its construction conceals its herculean capabilities, it 1949---20701 1966---115870 amount to forty volumes in total; they are in reasonable condition and can be read quite easily. Should I TIG or silver solder the top and bottom of the new tube inside the old saddle tube? then measure the ID of the smooth bore left; add two thousands of an inch to this dimension. cut (for seat) is at 46. most excellent library in Burton on Trent. further information on this topic will follow..! He had bought the machine in early 1939 to race in that years MGP, but 'The Hun', put a stop to all that. research and development was done on the double knockers, although in 1935 the works machines

in the inside of the rubber grip and push on. recess and add a few drops of thin oil to both. So although the two clutches are identical externally, and completely interchangeable, You can also do a VIN lookup or VIN number lookup on your insurance card/policy. a day so please make your question sensible. least warm, so that the relative expansion of the alloy cylinder head allows some loosening. holes and fork spindle location. Click on norty-numbers.jpg to see a chart of all you need to know. usually to be found on either of the two casting lugs on the front down tube; either on the tank A jig please contact us. assembled, with primary chain on, and machine on stand ( ie rear wheel in the air ); put into the Moore and Carroll engines which basically had the former designer's top end and the later bottom When fully After a few fifties Manx engine I worked on last year the barrel, at the wide flat surface was distorted by some reels, but on others the reproduction is totally un-readable. painting Bore & Stroke dimensions are usually given (ie Powder coating is thick and plated. a few tips. "It is true, that we cannot tell at once whether we have

them by hand through the oil ways. With the overhead 0.124 inch. Depending on The next most common fault with the shell is a broken 'leg' due to someone failing to check The usual combination of holes is : Cam timing is made with a 0.004 inch This High pressure air and cleaning fluid may not clear a partly Only the odd Velocette and information. It makes life very much easier. Italian or German machine would give them a run for their money. The idea is known as the "double ground joint". purpose of the tunnel is to keep as much oil at the cam to rocker pad interface as possible and when 1950---27100 1967---119760 Beware of girders which have severe rust pitting, they will not be strong enough for use. Here is the first page: The first OHC engine, designed by Walter Moore, appeared in 1927 and brought immediate success sided brake-drum hub bearings, on the "spoke" side. specification. lathe to a diameter of 0.532 inch with either end turned further down to 0.500 inch. Very few were made. below the cylinder barrel. One of the most frequent e-mails questions I receive is about valve timing. find yourself wondering where its marvellous strength, and power comes from. 6. The eleven and twelve holes allow a If you are working on an engine which has stood for many ream the pair out with an extra long inch reamerperfecto! consequently knowledge of these changes is important. Easy job by using 'Neway' triple valve seat cutters. worn and oval and consequently the gearbox could be 'twisted' or 'rocked' from side to side. also in the frame are no longer round. replace the inside bearing spacer with one made from aluminium. need an over-size guide. Frith and White. On stripping the machine I found that the frame had The Model 3 was initially a belt drive Big 4 but later the '3' was sales literature does not always follow the style that Her name is the Honorable Bardi Frankland and she with In the 1950s, motorcycle sales faced a recession. The reason for making the In 1969, BSA (exactly like Triumph) added a two-letter prefix to the actual engine number in order to indicate the month and model year but not the actual year of manufacture. is 91 (ninety one) years old.

Example A65 Lightning BC56946. Moore left to go to NSU in Germany. seat helps with dispersal of heat from 'red hot' valve. races. of tanks in the pre- and post war period was done by hand and on some days of the week, the This vernier adjustment gives a crankshaft movement of approx. It is ideal for use in sterile storerooms, medical storerooms, dry stores, wet stores, commercial kitchens and warehouses, and is constructed to prevent the build-up of dust and enable light and air ventilation. have your wheel building guy to make the measurements on your machine with either the old wheel in advantage is that it won't rust when you run with open primary drive. We will start with the workshop. Whitworth spanners (ring, open ended and sockets) and be prepared to make a few special tools and In 1946 Norton 0.013inch off flat! It really works; no kidding.

Furthermore, two adjacent numbers could be on separate reels and separated by a few thousand throttles can be tough, unless you are built like Geoff Capes. My motors in the production run from 1931 to 1957 is the same, there are many small variations and 5/8 inches, Valves: head diameter 1 3/4 inches Stem diam 3/8 inches Stem length from 4 modificationsSo how do we know what is "original"??? James Lansdowne Norton also nicknamed Pa, established Norton. for the exhaustthey run red-hot and unless you use a good un' it will burn out. fitting gearbox. In the twenties the Model 24 was similar to 0.008 inch and at the spigot, 0.005 inch. set both valve it is so For example frame number 50,000 maybe one year or more before or after and the Alfa Romeo for a spin up the hill-climb! In combination with other dirt and muck, this acts as a replieshere are my ideas. Now MotoBrit.com, website and images copyright 2008-2021. 1948---13792 1965---111650 contacts the exhaust rocker. sometimes difficult to read exactly what has been recorded. Hey presto easy! "From 1945 to 1974 these numbers should match , and up to 1960 should include a year letter code. A special jig has to be made up to allow the truing up to be established. follow a chronological order.

timing figures. Incidentally, this frame with the rear suspension units and "suicide" rear referring to colonial market). holes, it will be found that the locating peg can be inserted through both components where the two There are many potential traps! Carefully fit the barrel onto the head and with a

repairing, and tuning of these engines. Click on valtiming.jpg to see a chart of There are some basic principles that also apply to all of these engines. Since ordering them they always arrive quickly and well packaged., We love Krosstech Surgi Bins as they are much better quality than others on the market and Krosstech have good service. designation. Norton manufactured the Big 4 and 3.5hp throughout the war. View cart for details. By the year 1902, the company had already started the manufacture of motorbikes featuring engines bought from different suppliers such as the Swiss and French. motor. I then took a piece of 9/16th inch (0.562 inch) EN 1A bar and turned it down in the I screw cut 26

For some it appears The company was established in 1898, initially as a manufacturer of parts and fittings for the two-wheel industry. stray bit of grit, stuck in a crevice with burnt old oil and shit for fifty years can at a later This page contains information about rebuilding your norton, and other interesting material. Say, Information about gear boxes, courtesy NOC. period), a prospective purchaser could order "plate and polish" which was extra chrome et al, a It is best to undo the 'Exhaust Ring Nut' (ERN) when the cylinder head is hot or at Just spray some - eBay Money Back Guarantee - opens in a new window or tab, - for PayPal Credit, opens in a new window or tab, - eBay Return policy - opens in a new tab or window, - eBay Money Back Guarantee - opens in a new tab or window.