Richard Bennett

I am re-building the motor of my 89 Turbo as I blew the head gasket plus, burnt exhaust valves, the clutch was slipping etc etc.

Quick question. Are the exhaust valves of a 951 ceramic coated? The reason I ask is that there is a layer of hard material coating the valve head and round the seat area. On some areas of the exhaust valve seats the coating has chipped off. I initailally assumed it was just burnt carbon, but I didn't want to clean it all off only to find out that they are ceramic sprayed. I can't believe that ceramic coating would survive on an exhaust valve but you never know.

thanks Richard

IanM

I think they're sodium-filled, but I don't think they're ceramic coated. Then again, I don't really know. Some help I am...

Dal Heger

Hello!

Yes, the exhaust ports are ceramic coated.
Yes, the valves are sodium filled.

Hope that helps!

Dal.

Richard Bennett

Yes I know that the exhaust ports have the ceramic liner but it sure looks like the exhaust valves are coated too. can anyone confirm? Anyone have a brand new valve? if so is it stainless or is it coated grey on the head?

Thanks Richard