If its the valve stem seals, usually the car smokes a lot at startup. Also, in the summer, the condition is usually aggrevated. I have heard that by pumping compressed air in the cylinder, you can prevent the valves from falling when you remove the springs and retainer. If so, you can replace the stems with the heads on. I can't see why this cannot apply for a 392. D^2 Quoting "r.van.Lent" <remco.nancy@xxxxxxxxxx>: > Hi all > My 392 is smoking lika a steam train > I think the small rubber caps that are on the valve stems are gone > can I replace these without having to remove the cilinder heads > Regards remco >