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Posted 11 October 2012 - 06:15 PM
Posted 11 October 2012 - 07:47 PM
Is the PCV valve clear? How about the hoses that go into the block? What about the breather hoses that run from the valve covers to the intake tube?
Posted 11 October 2012 - 08:07 PM
Excessive oil consumption can be caused by a clogged pcv valve or breather system. A clogged PCV valve causes high crankcase pressure, which can force oil out through seals and cause leaks. With large leaks being repaired, this higher pressure has fewer places to escape, and will cause new leaks, but in the mean time it will just force it's way past the rings into the cylinder and be burned off with combustion.
The breather system is the first thing I would check. Next would be a leak down test to check for ring/cylinder wall wear.
You can also check spark plugs for oil fouling to determine if the problem is uniform for all cylinders or limited to one or two.
Posted 12 October 2012 - 11:50 AM
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