Sticky valves???
Thread Starter
2nd Gear
Joined: Aug 2008
Posts: 2
Likes: 0
Sticky valves???
I have a 1987 Corvette convertable and always at start up (after sitting for a while) I have smoke coming out of tail pipes. It does go away after a while but it is a little embarrassing. Im told, oil is seeping to cylinders. I am planning a engine rebuild in 2 years. I have 90,000 miles on it. Is there anything I can do to stop this smoke. will sythetic oil stop it and can I use it in this vette? Any help will be appreciated
Burning Brakes
Joined: Jun 2005
Posts: 1,191
Likes: 15
From: Wallingford Vermont
My experience is you got bad valve seals. Excessive heat and age has made those seals worthless. Do a search and you should find a few articles on how to replace them. It's not terribly hard, the worst part is getting that damn EGR tube off and on; take maybe an afternoon.
PS. Synthetic oil will just make it worse until you replace those seals. Synthetics tend to disolve some of the varnish/sludge which will let more oil leak down your valves.
PS. Synthetic oil will just make it worse until you replace those seals. Synthetics tend to disolve some of the varnish/sludge which will let more oil leak down your valves.
