Hi I recently had a 1964 327 small block chevy engine rebuilt. After the rebuild it started to smoke from the right side exhaust tail pipe and some from the left side but not as bad. I remove the intake manifold to check for a slipped runner gasket allthough the motor ran well with good vacumn. As I looked into the head intake runners there was a lot of oil. I suspect the valve guide seals are leaking around the outer part as the are nylon and I don't think they are sealing to the new bronze valve guide They are brand i've never heard of "Corteco" It seems the clamp on these seals doesn't make a perfect circle on the larger side. There seems to be some machining marks on the guides also. I think if these seals were made of rubber I would not have had a problem. What do you think? Thevetteworks@msn. Com
have the same problem?
Tuesday, December 28th, 2010 AT 3:17 AM