| Re: [GMCnet] Engine Block Heater ? [message #76235] |
Wed, 10 March 2010 09:30  |
Terry Skinner
Messages: 379
Registered: January 2004
Karma:
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Senior Member |
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Denny, have you tried a thicker phonic block between the carb and
manifold?? Or maybe doubling them??............Terry
On Wed, Mar 10, 2010 at 6:10 AM, Rick Denney <rick@rickdenney.com> wrote:
> Terry writes...
>>
>> Next time you run your GMC upon stopping and turning the
>> engine off
>> take the air cleaner off and look down the throat of the
>> carb. There
>> is a good chance you will see gas percolating. I can
>> understand you
>> wanting to add the fuel pump. That would be the
>> easiest/cheapest, but
>> if it doesn't fix the base problem why bother
>
> Terry, the hot crossover will certainly boil out the gasoline
> from the carb, but I find that the gasoline boils out to some
> extent even with a manifold that has no crossover. And the
> fuel can still evaporate out during winter storage. The fuel
> pump is palliative, to be sure--it only cures the symptoms of
> these problems. But it does do that pretty sensibly.
>
> Curing the problem beyond blocking the crossover might not be
> that easy.
>
> Rick "who still has to refill the float bowl on occasion"
> Denney
>
>
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--
Terry Skinner
253-686-2624
Roy. Washington
'76 GMC
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