<VV> Carburetor idle vent functionality/vent seal

[charles mckinley]

I'm getting in on this discussion a little late, but I'd be very
interested to find that GM tech tip Frank mentioned that describes where
to drill a vent in the early carbs. That's what I have, and I generally
have a bit (not a lot) of trouble with hot starts. My '63 is always
parked outdoors now, so gas fumes would not be a problem.
Chuck McKinley
'63 Monza 900

On Fri, 2013-03-01 at 11:54 -0500, hallgrenn at aol.com wrote:
> Ray,
> 
> Just remember to remove the metal strip with its rubber seal before you put the carb in carb cleaner or the rubber will swell to twice its size and sometimes not seal well when reassembled.  I learned the hard way the first time I rebuilt some '68 carbs.
> 
> Bob
> 
> 
> 
>  The rubber does not affect carb performance. So
> it should never be "more trouble than they are worth".
> 
> Frank DuVal 
> 
> 
> 
> 
> -----Original Message-----
> From: corvairduval <corvairduval at cox.net>
> To: virtualvairs <virtualvairs at corvair.org>
> Sent: Fri, Mar 1, 2013 10:58 am
> Subject: Re: <VV> Carburetor idle vent functionality
> 
> 
> I'm with Bob. The original GM tech tip (or whatever it was called) was for
> the dealer mechanic to drill a hole in the side of the carb (at a certain
> place) to help with hot starting. The hole was always open, so there were
> complaints of added gas smell in the engine compartment. The idle vent
> valve was incorporated in the carb redesign to seal the hole off idle. I
> can attest that leaving the rubber valve off when rebuilding a carb results
> in a carb that runs fine. The rubber does not affect carb performance. So
> it should never be "more trouble than they are worth".
> 
> Frank DuVal 
> 
> Original Message:
> -----------------
> From:  BobHelt at aol.com
> Date: Fri, 1 Mar 2013 09:54:51 -0500 (EST)
> To: corvairgrymm at gmail.com, virtualvairs at corvair.org
> Subject: Re: <VV> Carburetor idle vent functionality
> 
> 
> Ray,
> If you want my opinion, the idle vent is what separates the GOOD carbs from 
>  the bad ones.
>  
> Regards,
> Bob Helt
>  
> 
> 
> 
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