1.e Norton SOHC Crankshaft Parts

This is the E4251(Norton part number) 3/8" x 26 Engine Bolt set - front lower crankcase - approx 4pm position as fitted to SOHC Norton International Model 30 and Model 40 models. This has the rounded head profile as would be expected on roadgoing International models.  The set is CNC machined from stainless steel with the correct 'reduced Hex' head and profile, 2 stainless washers and reduced Hex wider nut

- Single row ball bearing - Fitted to the outer of the two driveside mainshaft bearings in the crankcase on all SOHC engines, both International and early Manx.  This is from top quality manufacturer RHP - but like so many original Norton bearings - the original C3 (loose fit) type are now unobtainable, and these are the STD fit type.  See detail listing for more information.

- This is a very useful tool, that no workshop should be without - a plastic circular valve/ignition disc, with hole that can be opened out to suit all Norton singles.  Price is Each

- Modern equivelant Dowty washer (outer washer is zinc plated steel, inner washer is neoprene). This washer is used behind the timing chamber filter bolt and also at the back of the rear cylinder crankcase mouth bolt (that has an oil feed)

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

These Red Fibre Washers are a nice close fit on 1/4" BSP threads and are useful for many Norton fittings - such as those breather unions and petrol taps that have a 1/4" BSP thread that comes up close to the hex or shoulder. Unlike many BSP fibre washers available these days - these ones are a good fit to the thread.  See listing for more information. Price is per pair