<VV> Fwd: typical idle vacuum reading?

[ricknorris at suddenlink.net]

This one of the reasons the race car guys cut the dip stick tube off short in the crankcase.
--
Rick Norris
#36 Sunoco Corvair
www.corvairalley.com 

---- Ken Pepke <kenpepke at juno.com> wrote: 
> 
> Pumping oil out of the dipstick tube can be caused by the length of the dipstick tube.  If that tube goes far enough down for the end to be in the oil it does not take much crankcase pressure to push oil up and out.
> 
> Ken P
> Wyandotte, MI
> Worry looks around; Sorry looks back, Faith looks up.
> 
> ************************
> 
> > From: Ramon Rodriguez III <corvairgrymm at gmail.com>
> > Date: November 3, 2011 12:48:51 AM EDT
> > To: Mark Durham <62vair at gmail.com>
> > Cc: virtualvairs at corvair.org, Bryan Blackwell <bryan at skiblack.com>
> > Subject: Re: <VV> typical idle vacuum reading?
> > 
> > Yep, I know it'd only pressurize the crank case if it is blowby, I just
> > didn't have any past experience to make a real comparison of what I was
> > getting in the way of crank case pressure.  My guess was that the pressure
> > would build up enough to push oil out the dipstick tube eventually no
> > matter what condition the engine was in (if the PCV is plugged), it's just
> > a matter of how long and I'd never done it on another car for comparison.
> > Also I didn't really pay very close attention to how long it took to happen.
> > 
> > This engine was also overheated pretty good (by Missy) once around two
> > years ago.  I'm hoping I can just re-ring it but don't know how likely that
> > is.
> > 
> > Ray R.
> 
> 
> 
> 
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