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Dec 2, 2019 | 09:15 PM

Branden Heine

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Fuel pump

I know nothing about these fuel pumps can someone tell which one is the inlet and which is the outlet and what the hose on top for is that because it’s vacuum operated or? Thanks for the help

Dec 2, 2019 | 09:18 PM

Tedster9

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From: Waterloo, Iowa

No idea. But ... those spark plug wires!

Dec 2, 2019 | 09:50 PM

Branden Heine

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Quote:

Originally Posted by Tedster9

No idea. But ... those spark plug wires!

i knew I would hear something about that they are a performance set i stole off a y block I had they are just temporary to get it running

Dec 3, 2019 | 07:48 AM

hiball3985

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From: tujunga, calif

Not sure on the bottom in/out but the top ones are for the vacuum wipers.

Dec 3, 2019 | 08:14 AM

Branden Heine

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Quote:

Originally Posted by hiball3985

Not sure on the bottom in/out but the top ones are for the vacuum wipers.

thats what I was thinking 2 lines come out from the top

Dec 3, 2019 | 09:17 AM

Tedster9

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From: Waterloo, Iowa

Does it work OK, good pressure and volume? I bet it's tough to find an exact replacement these days. The older pump materials don't get along with modern fuel.

Dec 3, 2019 | 09:33 AM

Branden Heine

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Quote:

Originally Posted by Tedster9

Does it work OK, good pressure and volume? I bet it's tough to find an exact replacement these days. The older pump materials don't get along with modern fuel.

I don’t know the condition so far it won’t suck fuel but I think I found a new one on rock auto that has the vacuum lines on the top

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Dec 3, 2019 | 10:32 AM

hiball3985

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From: tujunga, calif

Quote:

Originally Posted by Branden Heine

i knew I would hear something about that they are a performance set i stole off a y block I had they are just temporary to get it running

Those aren't even correct for a Y block

I would suggest you run a line from the new pump to a clean can of gas for initial fire up.

Dec 3, 2019 | 10:34 AM

#10

hiball3985

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From: tujunga, calif

Quote:

Originally Posted by Branden Heine

thats what I was thinking 2 lines come out from the top

One line to the wiper motor, the other to the intake manifold.

Dec 3, 2019 | 10:49 AM

#11

Branden Heine

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Tuned

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Quote:

Originally Posted by Tedster9

Are the hard steel fuel lines clear prior to the pump, any rubber fuel hose fresh w/ good tight clamps, and the tank itself free of varnish sludge and sediment? Just thinking outloud.

the tank was out and the lines were removed when I got the truck so that’s why I don’t know