1.g Norton ES2/16H/OHV/SV Parts

High quality (UK manufactured) coil valve springs to fit 1920's OHV models up to 1933, early (Walter Moore) type CS1 models and the first Arthur Carrol SOHC CS1 engines up to 1932/33 - see detail listing for more information and if your machine requires this type of spring.  Price is for a set of 4 springs (i.e. enough for one engine)

This item is for a pair of the distinctive 'conical' shaped valve spring cups, of the type that were fitted on OHV and Walter Moore CS1 Norton engines through from approximately 1928 up to 1931.  CNC machined from an original pattern, including radial holes - these are designed to fit the early spring type (which we can also supply).  Sold as matching top and bottom cup - see listing for more information  

High quality (UK manufactured) coil valve springs to fit the late 1920's - 1936/7 Norton CS1 and OHV single cylinder models (longer length than later coil springs -see detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

High quality (UK manufactured) coil valve springs to fit both OHV and CS1 (i.e. non hairpin SOHC) models from 1933 to 1947 single cylinder models (longer length than later coil springs -see detail listing for more information.  Price is for a set of 4 springs (i.e. enough for one engine)

High quality (UK manufactured) coil valve springs to fit all Norton OHV single cylinder models (ES2, Model 18, Model 19, Model 50) from 1948 - 1959.  The 1948 onwards engine is one of the most popular, but employed a different spring and cups to the OHV earlier engines, these are the correct type springs - see detail listing for more information on spring types.  Price is for a set of 4 springs (i.e. enough for one engine)

- Coil Valve Spring Bottom Cup to fit early SOHC (coil spring variant) Model 30/40 International, CS1/CJ as well as all Norton OHV models

- Coil Valve Spring Top Cup to fit early SOHC (coil spring variant) Model 30/40 International, CS1/CJ as well as pre-1948 Norton OHV models

- Coil Valve Spring Top Cup to fit 1948 onwards OHV models - Model 18, ES2, Model 19 etc

This is the arm fitted to exhaust lifter mechanism on OHV engines, and comes with the special 'reduced head' nut fitted to these arms to avoid fouling rocker boxes.  Both in stainless steel.  See listing for more detail on fittingwax castings

This Rocker Adjuster and Tapered Locknut are to fit Flat Tank OHV Models (i.e Model 18 and Model 19) between approximately 1926 and 1929 - the distinguishing features of this type being that this type screwed into the front of the OHV Rockers, and had a 'ball' profile at the end - that fitted directly into the top Pushrod cup.  We have CNC manufactured this type using an original 1920'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)