620 fuel pump

1972-1979 Datsun 620 forums. All 620-specific topics and discussion can be found here.
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rabidd
Posts: 3
Joined: Wed Nov 18, 2020 2:35 pm
Car: 1978 Datsun 620 PU long bed

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I have a 1978 620 and the fuel pump is running but will not draw any fuel. It has set for quite awhile. What is the best fuel pump replacement.

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AZhitman
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Car: 58 L210, 63 Bluebird RHD, 64 NL320, 65 SPL310, 66 411 RHD, 67 WRL411, 68 510 SR20, 75 280Z RB25, 77 620 SR20, 79 B310, 90 S13, 92 SE-R, 92 Silvia Qs, 98 S14.
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The "best" is an original Nikki pump, but they're hard to come by anymore.

Rock Auto has a suitable replacement unit for the 620, last I checked.
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rabidd
Posts: 3
Joined: Wed Nov 18, 2020 2:35 pm
Car: 1978 Datsun 620 PU long bed

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Got one from rock auto the original works but would not draw fuel from the tank. Put new one on runs fine draws fuel from a gas can but I cant get anything to come from the tank it has about 4 gallons in it which is fresh gas. Truck set for about 6 years is there a way to get to the tank from the bed?
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rabidd
Posts: 3
Joined: Wed Nov 18, 2020 2:35 pm
Car: 1978 Datsun 620 PU long bed

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Any Datsun fuel people out there? This is an original 78 California truck that has a fuel shut system would this have anything to do with not being able to draw fuel from the tank?
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spanner
Posts: 7
Joined: Wed Jun 01, 2016 5:27 pm
Car: 1973 Datsun 620 pickup

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Pump has to run as it rests on cam (assuming it's a manual).
Diaphragm bad ?
I got a replacement for my 73 from Kragen (now Reilley)
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