Re: [DML] Re: PCV valve failure [was: Unprotected DeLorean Ignition Circ
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Re: [DML] Re: PCV valve failure [was: Unprotected DeLorean Ignition Circuit]

I have been misquoted - I was talking about the turbo engines and 
without the check valve, there would be up to a bar of positive pressure 
applied to the crank case, no doubt blowing oil out through the front 
and rear main seals, popping the dipstick out, not to mention the oil 
filler cap itself (although they are actually clipped down on the turbo 

The turbo engines are vented much like the DeLorean engine, but via a 
check valve.


Dave Swingle wrote:

>It's both. The check valve function is supposed to keep an engine 
>backfire fron blowing INTO the crankcase. Apparently PRV didn't worry 
>about that. 
>Dave S
>--- In dmcnews@xxxxxxxxxxxxxxx, "bitsyncmater" <david.mckeen@...> wrote:
>>I think a PCV valve is not a check valve but a controlled volume 
>>(like an orifice).  If you use to much vacuum flow you will never get 
>>your idle speed down to 750 RPM. (Just like other vacuum leaks)


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