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Old 08-26-2013   #4
Franke
 
Join Date: May 2013
Location: Beaver, PA
Posts: 515
Default Re: Possible Leak - Engine Smoking

The ZR-1 Net Registry has info on oil leaks for the LT5 Engine. I think Xfire may be spot on here.
An excerpt from the tech articles "If you have a leak coming from the center of the engine, seemingly from the exhaust manifold, you might be correct. On some engines, the center studs for the exhaust manifolds are drilled into or nearly into an oil passage. Eventually, the oil works it's way through the stud's threads, causing a leak. Removal of the stud and the application of a sealer usually resolves this problem."
You might want to check the Registry for additional causes of oil leaks.
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