| Re: [GMCnet] Engine Block Heater ? [message #76235] |
Wed, 10 March 2010 09:30  |
Terry Skinner
Messages: 379
Registered: January 2004
Karma: 0
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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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| Re: [GMCnet] Engine Block Heater ? [message #76254 is a reply to message #76235] |
Wed, 10 March 2010 12:06  |
Rick Denney
Messages: 430
Registered: January 2004
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Terry asks,
>
> Denny, have you tried a thicker phonic block between the
> carb and
> manifold?? Or maybe doubling them??............Terry
No, but with my current setup, it's never a problem anyway.
In fact, I will soon be wiring the fuel pump to go through
the oil pressure switch full time so that the engine will
crank until there is minimal oil pressure before filling the
carb. If the carb bowl is still full, then I don't need to
worry about the oil pressure.
Rick "who likes the external controllability of electric fuel
pumps" Denney
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'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Engine Block Heater ? [message #76255 is a reply to message #76254] |
Wed, 10 March 2010 12:23 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
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| Rick Denney wrote on Wed, 10 March 2010 12:06 |
Terry asks,
>
> Denny, have you tried a thicker phonic block between the
> carb and
> manifold?? Or maybe doubling them??............Terry
No, but with my current setup, it's never a problem anyway.
In fact, I will soon be wiring the fuel pump to go through
the oil pressure switch full time so that the engine will
crank until there is minimal oil pressure before filling the
carb. If the carb bowl is still full, then I don't need to
worry about the oil pressure.
Rick "who likes the external controllability of electric fuel
pumps" Denney
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on my coach it takes longer to get fuel to the carb than it does to crank up oil pressure. i like the independent control.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Engine Block Heater ? [message #76283 is a reply to message #76254] |
Wed, 10 March 2010 16:59 |
Terry Skinner
Messages: 379
Registered: January 2004
Karma: 0
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Senior Member |
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My next question is if you want to use an electric fuel pump why not
two, each with it's own filter, and eliminate the selector valve. With
each tank, filter, and pump connected to a double throw single pole.
Maybe a double throw so the gauge still works. Can't beat
redundancy.<G>...........Terry
PS this is a serious question.
On Wed, Mar 10, 2010 at 10:06 AM, Rick Denney <rick@rickdenney.com> wrote:
> Terry asks,
>>
>> Denny, have you tried a thicker phonic block between the
>> carb and
>> manifold?? Or maybe doubling them??............Terry
>
> No, but with my current setup, it's never a problem anyway.
> In fact, I will soon be wiring the fuel pump to go through
> the oil pressure switch full time so that the engine will
> crank until there is minimal oil pressure before filling the
> carb. If the carb bowl is still full, then I don't need to
> worry about the oil pressure.
>
> Rick "who likes the external controllability of electric fuel
> pumps" Denney
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Terry Skinner
253-686-2624
Roy. Washington
'76 GMC
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