<VV> Help - Engine runs worse than before!

Dennis Pleau dpleau at wavecable.com
Wed Nov 30 18:22:50 EST 2011


You may want to do a compression or leak down test.  Fumes under pressure
could be a sign of bad rings or a burnt piston.

dp

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Bill H.
Sent: Wednesday, November 30, 2011 3:06 PM
To: virtualvairs at corvair.org
Subject: <VV> Help - Engine runs worse than before!

                                           B"H

hi all...after getting my engine to run really smoothly, having taken both
carbs off, cleaned them and put them back on (with all parts this time), all
of a sudden the engine runs rough, worse when warmed up, and stalls when
fully warm.

One thing I noticed seems strange.  With the air cleaner off, the metal PVC
pipe that runs from the top of the turkey roaster to the air cleaner (and
has the PCV orifice, connected to a vacuum hose) puts fumes out under
pressure.  If I put my finger over the top of the pipe, you can feel the
pressure.

I have verified that the orifice itself is clean and open.

Are the crankcase fumes supposed to be under pressure?

All vacuum connections look tight.  No leaks found.  

Thanks guys.  It's a '66 Monza, 110 PG engine.

Bill Hershkowitz   Brooklyn New York





More information about the VirtualVairs mailing list