[Diy_efi] Venturi effect crankcase breather

Matt Porritt porrittm at anet.co.nz
Thu Jul 10 05:09:50 GMT 2003


Majority of Jap engines have the crankcase breaker plumbed into the intake
piping, so any vacuum the intake system sees, the crankcase does also.

So, yes the engine does generate its own vacuum.

On 10/7/03 1:42 PM Adam Wade wrote

>> At part throttle, the engine generates it's own
>> vacuum.
> 
> Not in the crankcase, it doesn't.  I believe you're
> thinking of the intake runner.


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