Pressure Tester (was Surging and erratic boost
pjrose at frontiernet.net
Wed Jan 3 10:39:44 EST 2007
At 7:33 PM -0800 1/2/07, Bernie Benz wrote:
> > From: Phil Rose <pjrose at frontiernet.net>
>> At 1:30 PM -0500 1/1/07, PeterBergin at aol.com wrote:
>>> When I test my system with that method, my oil dip stick launches
>>> like a torpedo at about ~15 lbs.
>> Isn't there a check valve in the crankcase breather hose that is
>> supposed to prevent that?
>I don't think so, Phil. How would such a device work in this case? The flame
>arrestor is the only possible restrictor in the breather before it dumps
>into the intake immediately ahead of the throttle body.
Have a look at the breather hose diagram posted by SJM
and read his description:
"This 1991 200TQ 20V breather hose also has a Tee in the center of
the hose, which connects to the intake manifold via a flow regulating
one way check valve and a molded rubber hose. The check valve will
close under positive manifold "boost" pressure. "
Phil Rose.....Rochester, NY USA
'06 A3q 3.2 V6 (5K, silver)
'91 200q (156K, Lago blue)
'91 200q (70K, Tornado red)
'89 100 (Bamboo gold)
More information about the 200q20v