<VV> Hot starting advice

[shortle]

Hi Chuck,
Of course Bob Helts book on identifying and rebuilding Corvair Rochester carbs is invaluable and has helped me a number of times. You failed to mention how long your car sits before this occurs and how long you have to crank the engine before it will start. (When you mention "unloader" it leads me to think your car is actually cooled off enough for the choke to be involved). Is your choke adjustment too stiff? Try disconnecting both choke rods after car warms up and see if this issue is still there? Do you have the insulators under the carbs? 
Do you have the correct spark plugs with the proper gap? Just a few thoughts from cold and chilly SW Colorado.
Good luck and please post results and findings. 
Timothy Shortle in Durango Colorado
PS You also maybe close to Corvair Master Technician Spence Shepherd if worse comes to worse
 


-----Original Message-----
>From: BobHelt at aol.com
>Sent: Mar 18, 2012 10:02 AM
>To: cmckinley313 at verizon.net, virtualvairs at corvair.org
>Subject: Re: <VV> Hot starting advice
>
>chuck,
>It could be any number of causes. Most likely is that the carburetors  
>floats are set too high allowing the fuel in the bowl to be too high. This can  
>cause engine heat to percolate the fuel and run raw gas into the engine 
>after  shut off.
>Another possibility is that you have carburetors that lack sufficient  
>venting to disipate fuel fumes after a hot shut down. This is explained in  my 
>book on H and HV carburetors. It wasn' t until 1964 that Chevrolet got the  
>venting problem fixed. If that is your problem, then get a pair of 1964 or  
>later carburetors for your engine.
>Regards,
>Bob Helt
> 
> 
>In a message dated 3/18/2012 7:36:52 A.M. US Mountain Standard Time,  
>cmckinley313 at verizon.net writes:
>
>However,  when I drive somewhere far enough to get the engine warmed up
>and then park  (on grocery runs, etc.), I have to use the technique of
>flooring the  accelerator to engage the unloader to start it up again. It
>always starts  without hassle, so maybe there's no real issue, but I'm
>wondering if  there's any tweak that can be made to minimize  this
>pattern
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