GERMS Posted April 20, 2010 Report Share Posted April 20, 2010 Why don't any autoparts have replacement fuel sending units for 1970's datsuns? (77 Datsun 620) What do you guys do when these things corrode? Still not sure if that's the reason my fuel gauge isn't working but just doing research. :huh: Link to comment
Bleach Posted April 20, 2010 Report Share Posted April 20, 2010 Go to a local wrecking yard. the 620's are plentiful up in the NW :D Link to comment
metalmonkey47 Posted April 20, 2010 Report Share Posted April 20, 2010 I've noticed the same thing. My gauge doesn't work, and I can't order a replacement. Nissan may carry them, I just haven't bothered to call. Link to comment
jefe de jefes Posted April 20, 2010 Report Share Posted April 20, 2010 Have you guys tried cleaning the little posts where the wiring for the sending unit connects to? Mine (521) didn't work either but after a good cleaning with A wire brush ,my gauge came back to life. Link to comment
nismo dr Posted April 20, 2010 Report Share Posted April 20, 2010 Does anyone know the spec on a Datto sending unit off the top of the head? How many ohms empty - full? Link to comment
metalmonkey47 Posted April 22, 2010 Report Share Posted April 22, 2010 I believe when i tested mine it was 0empty-160full. But I'm not sure it was operating correctly. Link to comment
datzenmike Posted April 22, 2010 Report Share Posted April 22, 2010 Full 10 ohms empty 80 ohms. Link to comment
metalmonkey47 Posted April 22, 2010 Report Share Posted April 22, 2010 Full 10 ohms empty 80 ohms. That would explain my crazy gauge problems :P Link to comment
datzenmike Posted April 22, 2010 Report Share Posted April 22, 2010 I think that the senders are all the same and only the floats are different for whatever vehicle or different tank is used. I briefly used a 720 tank with a 620 dash gauge and it worked fine. Link to comment
metalmonkey47 Posted April 22, 2010 Report Share Posted April 22, 2010 I think that the senders are all the same and only the floats are different for whatever vehicle or different tank is used. I briefly used a 720 tank with a 620 dash gauge and it worked fine. Do they all mount the same? Link to comment
vindats1 Posted April 22, 2010 Report Share Posted April 22, 2010 Do they all mount the same? There are different styles of senders, with different floats. Napa has a generic one that is adjustable...go check it out or find one at a wrecking yard. Some yards will pull and ship. Link to comment
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