1.j Norton Gearbox and Clutch Parts

1.j Norton Gearbox and Clutch Parts

Parts to fit those gearbox/clutch's fitted to all single cylinder Norton models - particularly upright type gearbox


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Gearbox Bearing - Mainshaft Main Bearing : All Models - SOHC/OHV/SV

Product no.: 0029 A2/316

- Large shielded single row ball bearing. This is the main bearing fitted to all upright and laydown Norton gearbox's from the 1930's - 1950's gearbox's. 

£45.00 *
In stock

Gearbox Bearing - Mainshaft All models/Layshaft : Model 30M/40M (Manx)

Product no.: 0030 A2/321

- Single row ball bearing. Fitted to all upright and Norton laydown gearbox's mainshafts and Manx model layshafts on the right hand (timing) side.  High quality RHP brand

£29.00 *
In stock

Norton Gearbox - Left Hand Layshaft Ball Bearing

Product no.: 0031 B2/322

Single Ball Bearing to fit all Norton upgright and pre-AMC laydown gearbox drive side layshaft - high quality manufacturer

£24.00 *
In stock

Norton Upright and Laydown (Pre-AMC) Gearbox - Mainshaft Thrust Washer (all models)

Product no.: 0641 A2/328

Norton Upright Gearbox and Pre-AMC (i.e. laydown) gearbox - bronze mainshaft Thrust Washer 

£22.00 *
Not in stock

Norton Gearbox - Sleevegear/Main Bearing Oil Retaining Shim - Price Each

Product no.: 0853 A2/317

This is the large oil retaining shim that is fitted between the mainshaft sleevegear and main gearbox bearing on all upright and laydown Norton gearboxs from the 1930's to late 1950's (i.e. pre-AMC) - as per original fitment.  Price Is Each

£3.80 *
In stock

Norton Gearbox - Oil Retaining Shim: Outer Bearing (Pre-War) or Reduced OD A2/417 - Price Each

Product no.: 0854 9666

This is the oil retaining shim that was shown as fitted between the main gearbox bearing and gearbox shell on pre-war Norton spare parts list - but can also be used as an alternative to the large inner bearing shim - see detail listing for more information. Price Is Each

£3.50 *
In stock

New 1933-50 Upright Gearbox: 'Works' Type Alloy Racing Gearlever Assembly for M30/Inter/SOHC Manx Models

Product no.: 0999 A11M/406W

This listing is for an alloy racing gearlever, complete with wasted gearbox bolt and locknut (to take lockwire) and correct SOHC Manx style gearlever rubber, to fit all Norton upright gearbox type splines - and has been faithfully reproduced from a genuine original SOHC Manx gearlever.  See detail listing for more information

£57.00 *
In stock

Dolls Head Gearbox - Gear Indicator

Product no.: 0273 A2/404
This distinctively shaped item was used on all dolls-head and upright gearbox's to show what gear you were in. As with all my other lasercut items, this is copied from an original item and the bends have been replicated faithfully as well
£7.50 *
In stock

Chromed Dolls Head Gearbox - Gear Indicator

Product no.: 0273b A2/404C
This distinctively shaped item was used on all dolls-head and upright gearbox's to show what gear you were in. As with all my other lasercut items, this is copied from an original item and the bends have been replicated faithfully as well. This version is polished and chromed and comes sprayed in a light protective oil
£13.00 *
In stock

Norton Gearbox Endplate Nuts (Stainless Steel) - Pre-War Upright (and later Laydown) Gearbox

Product no.: 0099 A11M/307

- These are the distinctive Norton gearbox nuts as fitted to the endplate of all upright Pre-War Norton models and pre-Featherbed Manx models. Made in Stainless Steel and very pretty

£3.70 *
In stock

Norton Upright Gearbox Cover Stud (Stainless Steel) - All Models

Product no.: 0100 a2/307
This is the gearbox cover stud that fits into the shell of all upright gearbox's. An original was used as a pattern, these are identical, other than being manufactured in stainless steel. 7 are fitted per gearbox. Note: This item is slightly longer than the vertical bevel stud, it is 5/16" BSC both ends and can also be used as the Inlet Stud on cylinder heads - but check the thread on your head first, sometimes these are BSW.
£2.50 *
In stock

Thin Width Gearbox/SOHC Bevel Stud Spring Washers (Stainless Steel) - 5/16" (per 10)

Product no.: 0102 SW002

Used on upright Norton gearbox's, these stainless steel thin width spring washers are identical to those fitted under the blind nut on the front gearbox cover, but are also a very useful alternative to the original 'reduced with' washers used on SOHC Norton bevel castings studs. Ours are in stainless steel and of good UK quality, price is for a pack of 10

£2.30 *
In stock

Upright Gearbox Cover Screws/Washers - Pair

Product no.: 0113 A11M/822
This Item listing is for a pair (i.e. two) of stainless steel cheesehead screws and red fibre washers to fit the oval shaped positive stop inspection cover on Norton upright pre-War gearbox's (both road and race gearbox's). These cheesehead screws are copied from an original gearbox screw, having a wider head than standard modern cheesehead screws. Sorry these are not cheap but are specially made for us, bar-turned from stainless rod by the same manufacturer that also makes my stainless cheesehead engine screw sets. also included is a pair of high quality red fibre washers that fit under the screws
£4.90 *
In stock

New 1947-50 Upright Gearbox - Complete SS Cheesehead Screw/Cover Bolt Set

Product no.: 0995 CH HD4

Complete cheesehead screw/nut set for the 1947-49 roadgoing type Norton Upright gearbox - as fitted to SV/OHV/SOHC roadgoing models.  Consists of 4 main cheesheads, 2 smaller 'inspection cover' type cheeseheads and botton stud spring washer and 5/16" BSC nut - all CNC'd by ourselves in stainless steel to the original Norton patterns.  Price is for 8 items in total

£19.00 *
In stock
can be shipped within 60 days

New 1947-50 Upright Gearbox - Inspection Cover SS Cheesehead Screw - Pair

Product no.: 1003 CH HD8

These are the two small screws used on the egg shape 'Norton' Clutch Worm adjuster inspection panel on 1947-50 type Norton Upright gearoboxs.  This type of inspection cover was only fitted for small period of two years and the screw used was smaller than other Norton cheesehead screws - so they are hard to find.  These are bar turned stainless steel with the correct thread and Norton gearbox head profile.  Price is per Pair

£5.80 *
In stock
can be shipped within 60 days

New 1951-56 Laydown Gearbox - Complete SS Cheesehead Screw/Cover BoltFiller Plug Set

Product no.: 0996 CH HD5

Complete cheesehead and cover bolt set for Norton Laydown type gearoboxs, as fitted to all roadgoing Norton models and DOHC Manx Nortons from 1950-56.  Set consists of 7 main cheesehead cover screws, 2 clutch worm inspection cover screws, 3 blind lower hex nuts and washer and the correct Norton type square slotted Filler Level Plug.  All in stainless steel.  All copied from original Norton patterns - see listing for details

£43.00 *
In stock
can be shipped within 60 days

New 1951-56 Laydown Gearbox - Oil Filler Level Square Head/Slotted Plug Screw (Stainless Steel)

Product no.: 0997 13765

This is the distinctive oil level filler plug as fitted to all Laydown Norton Gearbox's (under and to the left of the kickstart boss) from 1951-56.  As per the original it has the correct extra fine thread, square head, with screwdriver slot.  Ours are CNC machined in Stainless Steel and also look vgery pretty. See listing for more information

£6.00 *
In stock
can be shipped within 60 days

New 1933-50 Upright Gearbox - Cam Plate Plunger and Cam Plate Plunger Spring (Pair)

Product no.: 1010 A2/350+352

This listing is for the camplate plunger and camplate plunger spring that was fitted into the brass plunger bush on all upright Norton gearbox Positive Stop Mechanisms.  Original plungers often have a worn and flattened head, which can affect the effectiveness of gear changing.  The same plunger was also fitted to the Norton Laydown Manx Norton gearbox.  Price is for Plunger and Spring 

£15.00 *
In stock
can be shipped within 60 days

New 1933-50 Upright Gearbox - Cam Plate Plunger Spring (Each)

Product no.: 1011 A2/352

This listing is for the camplate plunger spring that was fitted into the brass plunger bush on all upright Norton gearbox Positive Stop Mechanisms.  An original plungers spring was used as the pattern, which has a strong poundage for its size, providing the correct original strength to the plunger.  Price is Each

 

£4.00 *
In stock
can be shipped within 60 days

Norton Gearbox - Selector Pawl Carrier Spacing Shim

Product no.: 0851 A2/415

This is the shim fitted behind the selector fork and rear mount plate on both Upright and Laydown gearboxs from 1930's to late 1950's. It is very important to give good smooth selection.

£2.80 *
In stock

Norton Gearbox - Selector Pawl - Front Shim (If Fitted or Required)

Product no.: 0852 Shim8

Optional Shim fitted in front of Selector Pawl - to improve slickness of gear selection (see detail listing for information) - Each

£2.80 *
In stock

Norton Gearbox Mainshaft/30M Layshaft End Shim: Set of 3 Shims

Product no.: 0405S A2/324SHS

Set of 3 different thickness shim washers to fit Norton Upright/Laydown gearbox mainshaft or the layshaft of racing gearbox's.  Useful if you have endplay or your gears are not fully in line.  Set of 3 in following sizes: 0.030”/0.018”/ 0.012", see listing for more information

 

£8.00 *
In stock

Norton Gearbox Mainshaft/30M Layshaft End Shim: Single Shim: Various Thicknesses

Product no.: 0405 A2/324Sh1

Single shim washer to fit Norton Upright/Laydown gearbox mainshaft or the layshaft of racing gearbox's.  Useful if you have endplay or your gears are not fully in line.  Available in 3 sizes: 0.030”/0.018”/ 0.012", see listing for more information

 

£2.80 *
In stock

Norton Gearbox - Gearchange Return Spring for Selector Mechanism

Product no.: 0384 A2/410

This spring is is the main return spring that fits in the gearbox selector mechanism, and it is the wear of this spring over years of use that causes it to eventually causes it to lose it's tension - which then results in changing gear becoming more haphazard and less direct. 

£7.00 *
In stock

Norton Gearbox Kickstarter Spring

Product no.: 0385 A2/367

As with the gearbox Return spring, this kickstarter spring is commonly worn on Norton gearbox's - often identifiable by the kickstarter moving backwards by its own accord on takeoff from standstill. As with the Return Spring, a good quality original used as the template to manufacture these

£7.00 *
In stock

Norton Upright Gearbox Linkage Clevis Pins+Split Pins - Pair

Product no.: 0357 A2/427

These are a modern equivelant for the clevis pins used to connect the gear linkage on Norton gearbox's between the positive stop selector mechanism and the main gearbox selector plate.  Listing is for 2 clevis pins and 2 split pins

£2.20 *
In stock

Norton Upright Gearbox Linkage Clevis Pins+Split Pins - Pack of 4

Product no.: 0357B A2/427_4

These are a modern equivelant for the clevis pins used to connect the gear linkage on Norton gearbox's between the positive stop selector mechanism and the main gearbox selector plate and often also fitted to Brake rod clevis's.  Listing is for 4 clevis pins and 4 split pins

£4.00 *
In stock

Norton Upright Gearbox - Cam Plate or Quadrant Spindle Washer - Pack of Three

Product no.: 0639 A2/346

Norton Upright Gearbox - Cam Plate or Quadrant Spindle Washer - Pack of Three:  these are the special, thick/wide pan washers used to secure the gearbox quadrant and lever arms on all Norton upright gearbox's (1933 type onwards), as well as gearbox quadrant on Laydown Norton gearbox's - Now in Stainless Steel

£3.30 *
In stock

Norton Gearbox - Sleevegear Roller Set

Product no.: 0032 A2/318

Set of 13 rollers to fit all Norton pre-Amc gearbox mainshaft sleevegears (+1 spare)

£6.00 *

Norton Upright Gearbox Top Adjustment Bolt/Assembly Set

Product no.: 0569 GearbxAdjstSet1

This listing is for the complete top gearbox locating and adjustment assembly used on Norton models fitted with 'Upright' gearboxs.  It is a combination of Items 0566, 0567 and 0568, all manufactured in stainless steel.

£60.00 *
*
Recommended Retail Price, plus delivery
1 - 30 of 85 results