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Drilling a Hole in Oil Cap or Re-Routing Excess Gasses S90-V90 1998

posted by  Michael Yount on  Tue Jul 9 13:23 CST 2019
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last visit: Thu Oct 23 20:03 CST 2014
[RELATED]

How many miles? Blow-by can get to the point that the OEM systems simply can't keep up with the volume/pressure in the crankcase that results. Trying to solve a "problem" like that by creating even more ventilation (hole in the oil cap) is akin to taking a Tylenol for a headache.....that's caused by a brain tumor. You may get some short term relief. But bigger problems loom.

So, the question is -- is the excess crankcase pressure the problem, or merely a symptom of another, larger problem?
--
82 242-6.2L; '17 Mazda3; '16 Crosstrek






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