<VV> muffler sound

[N. Joseph Potts]

Bob -
     Delco Carburetor Training Program 9 Model H-HV says, on Page 4, that
the idle vent valve (open at idle, as you said) leads from outside the
carburetor directly into the carburetor bore just above the throttle plate.

Joe Potts
Miami, Florida USA
1966 Corsa coupe 140hp 4-speed with A/C

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org]On Behalf Of BobHelt at aol.com
Sent: Sunday, July 03, 2005 6:19 PM
To: kovacsmj at sbcglobal.net
Cc: virtualvairs at corvair.org
Subject: Re: <VV> muffler sound


In a message dated 7/3/05 1:42:44 PM US Mountain Standard Time,
kovacsmj at sbcglobal.net writes:

> Upon removal, I found the idle vent valve rubber had split and was
allowing
> air to enter the carb at the base, under all conditions.

Hummmm. Doesn't sound right. The idle vent valve should be open at an idle,
so if you were getting air in there it shouldn't have been a bad rubber
valve
since air would always enter at an idle when the valve was working
correctly.
Also, as I remember, that idle vent circuit does NOT enter into the air
flow,
so even if you removed the vent, it shouldn't allow air to enter the airflow
going to the engine. It's a vent to the carb bowl. I don't have a carb here
to
check but I think that I'm correct.
Regards,
Bob Helt