<VV> Secondary Carbs

[Cliff]

Dennis and All, 

I should know this, and Matt will probably tell me to look it up in the
"Manual."  But, I'm thick skinned and willing to take a chance here.  

Something Dennis said got me to wondering about one of my secondary carbs.
At idle, 600-650 RPM, I cannot stop air flow through one of my secondary
carbs.  I hold the throttle closed as hard as I can and it still won't stop
the air. (Passenger side.)

QUESTIONS:  Are all throttle plates the same diameter?  Could it possibly be
that this throttle plate is not filling the bore?  It is definitely not a
primary plate as it does not have the "mouse bite." Are there other reasons
why it might be pulling all that air? I did loosen the screws on the shaft
and adjusted the plate in the bore while holding it up to the sun so that I
could cut out as much light as possible.  I am convinced it is as centered
in the bore as is possible.

Cliff Tibbitts
Lexington, KY
66 Monza 140/4

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Dennis PLEAU
Sent: Saturday, October 27, 2007 9:00 AM
To: vv
Subject: FW: <VV> Secondary Carbs

It's my understanding people go to primaries in place of secondaries for one
of two reasons.  Neither of which I understand.   The first involves using
the idle circuits will flow enough gas to keep the bowls of the secondaries
form varnishing up.  No why in the #&!! would you have secondary carbs if
you weren't going to push the skinny pedal to the floor now and then and
push a lot of fuel through the main jets which is a lot more fun and will
also keep the carbs from varnishing up. The second is to get power valves.
I'm not sure why you need power valves on carbs that are essentially
digital.  Just use secondaries and jet them for WOT.  In this application I
would change the throttle plate to one out of real secondaries so they don't
have the mouse bite out of them and close the idle mixture screw. As for the
people who talk about not using accelerator pumps in secondaries, I only use
real secondary carbs that are drilled for accelerator circuits and have the
pumps adjusted to give the biggest squirt I can.  It works for me! Dennis
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