Intake Leak Tester alternative

Matt twentyV matt_20v at
Wed Jul 9 15:28:52 EDT 2003

> In use, I only got to ~ 20 psi when my dipstick
> would blow up a few inches and release the
> pressure (Note that it didn't go into any air
> traffic control zones, Brandon.)

To avoid pressurizing the crankcase (which I don't
think is normal during engine operation) you can
disconnect the crankcase breather hose at the
rear of the engine (under the IC/TB pipe) and
plug it with a wine cork.

When I ran this test I got leaking around the spark
plug holes and the oil filler cap.  New VC gasket
and filler cap gasket are sitting in the garage for
a couple weeks now, guess they aren't going to
install themselves.. darn.  Once the breather was
plugged, I could pressurize to 15psi and still have
a little pressure left after 1 minute.  No massive
hissing so guess all is well.

Matt Rooke
'91cq//20vt (3B)

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