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Farmall & IHC Tractors Discussion Forum
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IH U2A engine fuel pressure specifications

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Randy Glasnapp

01-18-2006 17:57:41




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I am converting a 1951 Yale Forklift from 6v positive ground to 12v negative ground. I need to replace the fuel pump.

Yale Model #: KG51T-20H Serial #: 512736
Engine: International Harvester Model # U2A-LQ4B Serial #: UAAM 25574

Supposedly, this engine was used in FarmAll Super A and Super AV series tractors.

Does anyone know what the fuel pressure specifications are for the mechanical fuel pump? I want to replace it with a 12v electrical fuel pump.

Thanks,
Randy

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Bob M

01-18-2006 18:24:25




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 Re: IH U2A engine fuel pressure specifications in reply to Randy Glasnapp, 01-18-2006 17:57:41  
I don't know the fuel pressure spec for that engine. However as it was originally designed for the A and C series tractors with gravity fuel systems, the lowest pump pressure setting that will lift the gas to the carburetor will do the job - certainly less than 1 psi.

Note that too much fuel pressure can force the float needle valve off it's seat and result in flooding!



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