Gas pressure

  • wcoye
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05 Jul 2019 01:07 #37683 by wcoye
Replied by wcoye on topic Gas pressure
Terry, Presently the fuel line bypasses the mechanical pump completely. and runs only on the electrical pump. I didn't do it.
At one time gas did run through the mechanical pump. Sometime in the pass year someone who worked on my car bypassed the engine's pump....she generally works well...until this last hiccup

Bill Coye
Westchester 2240A
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2014 Hillsborough Concurs Strother MacMinn award

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05 Jul 2019 01:10 #37684 by wcoye
Replied by wcoye on topic Gas pressure
And at some point I want to see if I can run gas through the mechanical pump for looks and judging purposes.

Bill Coye
Westchester 2240A
Brag line: Winner of the
2014 Hillsborough Concurs Strother MacMinn award

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  • mikespeed35
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05 Jul 2019 03:48 #37686 by mikespeed35
Replied by mikespeed35 on topic Gas pressure
The way to run through the mechanical pump if you are using electric is to take the arm off the mech. pump, put a plate in place of the diagram, put a plate between the mech pump base and the block. For those of you who just turn on your electric pump when you think you are vaper locking or not running good. You risk having a hole in the diagram instead of the car vaper locking and when you turn on the electric pump you fill the crankcase with gas with not good results.
Just a warning.
CORDiallyMike

Mike Huffman
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14 Dec 2019 05:37 - 15 Dec 2019 07:03 #39038 by tayedils
Replied by tayedils on topic Gas pressure

wcoye wrote: Hi from Raleigh! What is the correct gas line pressure for my 810?

The only place that really counts is at the carburetor. For the needle valve to work right you want about 2 to 3 psi. Sometimes you can get away with 3.5 to 4 psi but I wouldn't try it.[/u]
Last edit: 15 Dec 2019 07:03 by tayedils.

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  • STEVEN.KUIPER
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14 Dec 2019 15:04 #39042 by STEVEN.KUIPER
Replied by STEVEN.KUIPER on topic Gas pressure
was the possible float issue ever resolved/checked? floats can get a pinhole leak, partially filling them with gas causing erratic behavior. they look fine. if
you remove the float and shake it....there's gas in there.

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14 Dec 2019 17:03 #39044 by 1748 S
Replied by 1748 S on topic Gas pressure
Mike speaks the truth. Mechanical pump diaphrams can't handle the pressure from an electrical pump.


Gary Parsons

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