Quote:
Originally Posted by BALISTC
Yes you need PCV valve, it allows crankcase vapours and gasses to escape. Without it, you'd be pressurising the crankcase and you'll more than likely blow out some seals, or push the gasses past the rings into the combustion chamber (along with some oil).
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Surely without it there would be less crankcase pressure as it would just be released to atmosphere???????