Copper Crush Washers to fit OHV/SV/CS1 Oil Tank Main Union 1930's-50's - Per Pair

This item listing is for a pair of copper 'Crush' washers of the type that were fitted behind the distinctive Oil Tank Union as fitted to most Roadgoing Norton models - i.e OHV, Side Valve and CS1 (not Inter tanks) from the 1930's through to the 1950's.  See listing for more detail.

Price is per pair - so as well as the one fitted, you have another as a spare.

The 1948 Norton Spare Parts List describes this Copper Crush Washer as part A2/293 - and in the accompanyning pictures I have shown a picture of the 1948 Oil Tank with washer shown.  This particular type of oil tank had the main (brass casting) Oil Tank Union exiteing the oil tank at approximately 90 degrees (i.e. horizontal) - so that it could avoid fouling the 'Upright' type gearbox that was fitted all the way through the 1930's to approximately 1950 - so these washers should fit all pre-war and Post war upright gearbox oil tanks with this type of union casting.

However, when the 'Laydown' gearbox was introduced in approximately 1950-51, the oil tank union shape was changed, and exited the oil tank at approximately 45 degrees (as there was no longer an issue with clearance around the gearbox) - but the actual threaded area of that later union type was the same as the earlier design - and these crushable copper washers will also fit the various designs used through road models to the Late 1950's.

Although this type of washer were not used on 'Semi Wrapround' or 'Full Wrapround Racing' oil tanks on SOHC Inter/Manx models, I believe they were of the type fitted to most Featherbed Inter and Featherbed DOHC Manx fittings. Email us on sales@racingvincent.co.uk if you require more fitting information for your own model.

I cannot be sure if these will fit all early 1930's tanks - particularly the type that had a dial tap fitted.  If you have one of these type unions - please email us first - even if your union has a smaller diameter than these - we may be able to obtain smaller sizes.  

These are good quaity Crushable Washer from one of our specialist UK washer manufacturers.  Price is per pair of washers 

Footnote:  These crushable washers commonly used to be called 'Copper/Abestos washers' - as the filling used to be abestos (in the days when fitted to Norton models in period).  However - Abestos has been outlawed for many years and this washer type is now filled with a soft mineral filling.