Re: Crankcase breather system

[Les Myer <lmyer@probe.net>]

Ulix Goettsch wrote:
> 
> Dave,
> 
> I think the proper functioning of the PCV valve could be tested with a
> vacuum gauge.  If the manuals don't give a spec for the vacuum, one could
> compare it to the reading on the system on a similar car which has a
> fairly new NOS valve on it (if one happens to know the owner of such a
> vehicle <grin>)
> 

The manual calls for testing of the PCV by an RPM rise when the oil
filler cap is removed.  Of course this would also depend on engine
condition and fuel mixture being optimum.

Les