<VV> Detonation

[Harry Yarnell]

No. This is a crutch. You're not getting the power you should, and you're 
not getting the mileage you should. The vacuum advance is there for a 
reason.
Other factors are at work here. Is timing up to spec? Heads deflashed; and 
at least cleaned out? Oil cooler unimpeaded?
Damper doors stuck closed? Carbon build-up in the combustion chambers?
These are  just a few possibilities off the top of my head....

harry yarnell
perryman garage and orphanage
hyarnell1 at earthlink.net
----- Original Message ----- 
From: "tconnolly" <tconnolly at iepfire.com>
To: <virtualvairs at corvair.org>
Sent: Thursday, May 10, 2007 11:29 AM
Subject: <VV> Detonation


Hi all.  Last year some time I was given the tip on VV to remove the vacuum 
advance line to reduce detonation on my 69 PG 140 vert.  It worked and again 
yesterday I bent and clipped the line closed.  It has eliminated almost all 
knock and ping, still slight pings while stomping on it but in general it 
gone.

My question today is how exactly does this work to fix my problem and is it 
ok to do all the time.  Does this fix point to a tuning change I should be 
making??

Thanks,
Tom Connolly

65 Corsa Vert
64 110 4sp cp
69 140 pg vert
Want more!


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