Guest Untame Posted September 20, 2012 Share Posted September 20, 2012 Does anyone know what kind of material is used on the throw-out donut in an old Delahaye? :confused: It is hard and brittle (oops! ) and looks like it might be impregnated with carbon or graphite. It would be great if there was some kind of thrust bearing adaptation that could be done. Link to comment Share on other sites More sharing options...
DavidAU Posted September 22, 2012 Share Posted September 22, 2012 Can you show us a photo of the donut and one of it in position in the gearbox and then someone maybe able to offer an alternative. My Metallurgique has got an open ballrace thrust bearing and that works good. Link to comment Share on other sites More sharing options...
Rusty_OToole Posted September 23, 2012 Share Posted September 23, 2012 Some cars had a throwout bearing made of hard carbon. Early VW beetles for one. If Delahaye bought their clutches from an outside supplier it may be interchangeable with some other vehicle, probably a light truck of some kind. I say that because the Delahaye was one of the biggest engined cars made in France at that time and if there were any ready made components they were probably made for trucks.You would think in this day and age there should be some sort of hard self lubricating plastic. I don't know if you could buy a chunk of hard carbon material and turn a new one on a lathe, if such material is even made. Maybe a brush for a giant electric motor or generator??? Link to comment Share on other sites More sharing options...
Guest Mochet Posted September 25, 2012 Share Posted September 25, 2012 My French 1959 Vespa 400 used a hard black carbon-type material as a throwout bearing. It split apart, and I replaced it with a ball bearing welded into the original holder.Phil Link to comment Share on other sites More sharing options...
Guest Untame Posted September 25, 2012 Share Posted September 25, 2012 Here are a few pictures. Link to comment Share on other sites More sharing options...
Guest 36chev Posted September 25, 2012 Share Posted September 25, 2012 The pictures look roughly similar to the carbon faced clutch release collar used on the mid-1930's Chevrolet and other GM products. You might be able to adapt one of those for this application. They should be available from Obsolete Chevrolet and other suppliers of earlier Chevrolet parts--or I may have a few extra. Here is link to an ebay auction for an Oldsmobile version of this collar. Link to comment Share on other sites More sharing options...
Guest 47jag Posted September 25, 2012 Share Posted September 25, 2012 What is the outside diameter of the housing and the diameter of the pivot pins. I can check and see if it's the same as a Jaguar's.Art Link to comment Share on other sites More sharing options...
john hanson Posted September 25, 2012 Share Posted September 25, 2012 I have some of them. They fit mid 30s gm cars Chev. Buick Olds and Pont.John Hanson Link to comment Share on other sites More sharing options...
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