Could anyone please help with detail of the exhaust valve lifter parts for a 1930 500cc overhead valve Norton?
My model 20 is missing the complete assembly which I think consists of three parts.
5741 exhaust valve lifter lever
5742 exhaust valve lifter bolt/nut
5743 exhaust valve lifter spring
if anyone can help with either parts for sale or even just parts I could photograph, measure or copy I’d be really grateful.
Many thanks Ian
Ian. I had the same problem with my 31 Model 20. The previous owner removed it I think during the 40's
I had a machine shop make up a new one using the diagram below.
I then bought a exhaust lifter that was too long and had them cut & Weld to the correct length.
As for a spring I just happened to have one NOT the coil type just an ordinary spring
Hope this helps
What a fantastic old drawing. It gives all the details I need to get the parts made. Thanks ever so much for taking the trouble to share the information, really grateful.