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Old 02-20-2014, 08:01 PM
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bawareca bawareca is offline
Join Date: Nov 2010
Location: Los Angeles
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Originally Posted by slowlanemcvane View Post

From my experience with most engines on cars that I have owned, the valve cover gaskets usually tend to fail on the exhaust side of the engine (passenger's side), and I think this is largely due to the large temperature swings that happen on that side, as the exhaust heats the cylinder head, then cools again after the engine is shut off. It makes the gasket brittle, then it fails slowly.
Also,in BMW case,the exhaust side accidentally happens to be the lower side of the head,where the oil collects
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