I am going to strip the head off Uma as she is burning oil and I suspect the valve seals.
The head will go off to be skimed , cleaned and the valve seals replaced.
I brought a gasket set a while ago and I am checking that the little grey seal are the right thing
Is it the little seals on the right of the spring in the photo above.
Thanks
Alan
ps Cheers G.W for the photo from the old web site