Just a quick question, struggling with a bit of clutch slip on my 1940 M20 (km motor). Fine tuning the cable and clutch arm has helped but its still not spot on. I have checked to see if the clutch is contaminated by removing the primary drain plug and there isnt too much oil in there.
I then read the article in technical regards pulling the clutch plates. I havnt stripped the primary case off my motor yet but is is likely to be a single spring clutch ? Can anyone tell me how the clutch evolved over the years ?
Strip the clutch plates out clean up with a good soak in petrol 24hrs, in a sealed tin an old tupperware box works,dry carefully, and reassembly refer to an exploded parts book to see if someone has missed anything out if any wear is obvious replace the plates if warped or simply worn out,replace but with the type that works in oil or dry, oil is normaly the problem migrating on to the clutch plates , early ones were cork later types were still designed to run dry , not in oil, Ian had some wonderful plates that work in oil or dry, he might be able to point you in the right direction to find some, andrew
Modern steel plates seem to made from metric plate & are thinner than originals so I fit 2 plain plates behind the pressure plate.
Seems to give a cleaner lift as well.
Is it a straight forward enough job to remove the clutch plates so long as I have the 'bolt tool' ? Ive only ever stripped a Bantam clutch :-) Is it worth replacing the spring as a matter of course due to the effects of it shortening over time ?
