1.d Norton SOHC Cambox

- This is the bronze plunger quill used to feed oil to the camshaft lobes if using a (pre-Featherbed) central oil feed SOHC cambox, i.e. Racing Internationals, M30/M40 and SOHC Manx Cambox's.  Note May 2024: New Batch now manufactured and back in stock

- This is the bronze plunger/quill used to feed oil to the camshaft lobes if using a Featherbed central oil feed SOHC cambox. Copied from an original item.  Price is each

This is the conical spring that fits behind the cambox oil feed plunger on SOHC central feed (competition type) cambox's , see detail listing for more information. Made to original pattern. Price is each

- This is the steel jet holder that screws into the inner timing cover on SOHC and pre-1938 OHV/SV models - and retains the big end oil feed plunger/quill.  The same holder is also used on all central oil feed (competition type) cambox bevel covers.  See listing for mor information. Price is Each

SOHC (and pre-38 OHV/SV) Big End, and SOHC cenral oil feed cambox jet holder - but shoulder is 2 thou of an inch oversize, for those with worn timing cover/cambox cover quill holder holes.  See listing for more information. Price is each

Copper washer that fits behind Bigend jet holder nut on SOHC and pre-war OHV/SV Norton singles and similar racing SOHC cambox' oil feed nuts. Best quality and the correct size for the job. Price is each

- This nut fits on the bevel end of the camshaft, and is lipped, to hold the bevel pin, as per the original Norton design - CNC machined in high tensile steel.  Price is each.

- Peg used to retain large camshaft bevel gear to camshaft - If your existing pin has any wear on it at all then it should be replaced, or false valve timings will be otained.

- This nut fits on the end of the camshaft after fitting cams and roller back bearing - This nut should be tightened to 55lb sq inch, therefore it is extremely difficult to remove. Sometimes it is actually less destructive to destroy this nut when removing it from the camshaft. Back In Stock Dec 09 - And now CNC machined from solid high tensile EN8 round bar (as high tensile imperial hexagon bar is getting very difficult to obtain)

Cambox rocker outer bearing assembly, consisting of one phospher bronze bearing cage, one outer bearing, 2 hardened side washers and 12 rollers. See detail listing for important information

Complete cambox rocker bearing assembly, consisting of one phospher bronze bearing cage, one outer bearing, 2 hardened side washers,12 rollers and also the cam rocker pivot bolt and castellated nut. See detail listing for important information

This listing is for an original type (i.e original obsolete type Imperial rollers) Replacement phosphor bronze cage, rollers and hardened side washers - for those owners of original SOHC camboxs (1934-58), who do not wish to repace the original imperial outer bearing, that is pressed into their rocker arms.  We have these rollers made specially for us, as the original roller size is now obsolete.  See detail listing for more info.  Price is per set for one rocker arm

Fitting and Honing service for a rocker bearing assembly into your Rocker arm, see detail listing for more information - Do not post Rockers without contacting us first!

- Cork Washer, fits on either side of the rocker arm bearing - Fitting new cork washers helps keep the cambox oiltight.  Cork thickness = 2.0mm (Std type) - Price is each.  See detail listing for fitting information

- Cork Washer, fits on either side of the rocker arm bearing - Fitting new cork washers helps keep the cambox oiltight.  Cork thickness = 2.4mm (Med type) - Price is each.  See detail listing for fitting information

- Cork Washer, fits on either side of the rocker arm bearing - Fitting new cork washers helps keep the cambox oiltight.  Cork thickness = 3.0mm (Thick type) - Price is each.  See detail listing for fitting information

For the earlier type rocker arms - which are identifiable by not having a machined recess to take the later 'lipped washer', I have had a batch of the cam rocker steel washers, that fit between the rocker arms and the cork washers

These are the half circular hardened steel plates that are located beneath the lower cambox rubbers, and which the rubber adjuster screws (A11/817) push against to ensure the lower cambox rubber's are held tight against the rocker arms. There are two per cambox, and are therefore sold as a pair

SOHC Cambox Rubber Pad Bottom Adjusting Screw (Stainless Steel) - Original Length Type.  CNC manufactured in stainless steel to original Norton pattern, with square adjusting head. Note: Youtube link in detail listing to see this part being made

These are the special 'Reduced Hex' nuts, as originally fitted to the rubber pad (square) adjusting screw A11/817 - CNC manufactured in stainless steel to the original Norton pattern with Whitworth spanner size.  Price is Each

SOHC Cambox Rubber Pad Bottom Adjusting Screw (Stainless Steel) - Longer Length Type.  CNC manufactured in stainless steel to original design but fractionally longer shaft - see listing for more detail. Price is each

This Flat Bottomed Rocker Adjuster and Tapered Locknut are to fit the first SOHC Walter Moore (i.e. Cricket Bat type) and 1930 - 1937 OHV Models.  They were fitted to CS1 models from 1927-1930 (approximately) and OHV models from 1929 - 1937.  This type of rocker adjuster were fitted to the rear rocker arms and acted directly on the valves.  We have CNC manufactured this type using an original early 1930's Norton item as the pattern and includes the correct profile locknut, with tapered bottom face, the locknut being in stainless steel.  See listing for more detail.  Price is for a single adjuster and locknut (i.e. 2 parts)

This Flat Bottomed Rocker Adjuster and Tapered Locknut are a slightly longer version of the 9163 (Std length) adjuster fitted to early SOHC engines and most OHV models up to 1937.  We modellecd this 5mm longer version on an original adjuster - that may have been modified, as at least one customer has requested a longer type.  See Listing for more information. Price is for a single adjuster and locknut (i.e. 2 parts)

These are the distinctive 9/32" x 26tpi BSC tapered locknuts as fitted to the Norton OHV/Walter Moore CS1 Flat Pad type rocker adjusters (our items 1121 and 1122 from approximately 1929-37.  These have been CNC manufactured in stainless steel to exactly the same dimensions as a Norton 1930's example.  Note we also sell the locknut with the actual adjuster - see Item 1121 and 1122, but as the original nuts are often chewed or come loose and fall off - we sell them on their own here.  Price is each (i.e. one locknut)

This is a faithful reproduction of the straight through union fitted to SOHC (and DOHC) cambox's for connecting the cambox oil feed pipe (fitted at top of crankcase and cambox), but also used as a front crankcase breather on many Inters and magnesium racing engines.  Finally it is also fitted as a breather union on the bevel chamber of magnesium racing crankcases behind the inner timing cover (while Inter crankcases instead employ a pressure telltale unit).  Copied from an original pre-war item

These Red Fibre Washers are a smaller diameter than 'normal' 1/4" BSP washers - but then pre-threaded by us - so they are a good fit on those Norton fittings that used 1/4" BSP thread, but have a groove behind the thread - e.g. Norton pre-48 Oil Sump Plugs and some breather union fittings.  See detail listing for more information.  This listing is for a bag of 5 washers

These Red Fibre Washers are a smaller diameter than 'normal' 1/4" BSP washers - but then pre-threaded by us - so they are a good fit on those Norton fittings that used 1/4" BSP thread, but have a groove behind the thread - e.g. Norton pre-48 Oil Sump Plugs and some breather union fittings.  See detail listing for more information.  This listing is for a pair washers