<VV> Fwd: typical idle vacuum reading?

Ramon Rodriguez III corvairgrymm at gmail.com
Thu Nov 3 14:09:44 EDT 2011


Oil only came up the dipstick tube when I had used my finger to block off
the PCV for a minute.  It isn't a problem I'm having but I was wondering
how strong an indicator of blowby it was.

Ray R.


On Thu, Nov 3, 2011 at 1:08 PM, Bryan Blackwell <bryan at skiblack.com> wrote:

> >From the factory the dipstick tube goes into the oil, as Bob Helt wrote
> that was to minimize fumes.  There's a small hole on the side to relieve
> pressure, and if the engine is tight that's all you need.  However, engines
> with some significant blowby will pump oil up the dipstick tube, so if the
> engine otherwise runs acceptably, the simple solution is to break it off
> even with the crank case (and maybe don't use the heater).  I recall
> reading inserting a screwdriver and rocking back and forth will break off
> the tube.
>
> --Bryan
>


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