<VV> typical idle vacuum reading?

[Ramon Rodriguez III]

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.



On Wed, Nov 2, 2011 at 11:47 PM, Mark Durham <62vair at gmail.com> wrote:

> Ray, if its valves, the leaks would be out those pipes, not into the
> case. Case pressure is always blowby. Try squirting some oil in the
> low cylinders then redoing the compression test. If the comp comes up,
> that is verification of bad rings. You could also change the oil to a
> heavier weight, say a 20w50, which will help to compensate for bad
> rings, it works for awhile.  Mark Durham.
>
>