[Roadsters] Charging voltage

[Pat Horne]

I think all 1600’s & 2L cars used the same alternator, so that shouldn’t be a problem.

First unplug the harness from the voltage regulator. Is the alternator voltage still high? If so you probably have a defective alternator or harness or the connections to the alternator are incorrect. 

If it is not high you have a defective regulator, it is not grounded or have wrong wiring between the alternator & regulator. 

Something else to be sure is in place is the ground strap between the engine & body/frame. Where is your negative battery cable connected, engine or body/frame?

Peace,
Pat

Pat Horne 
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> On Oct 15, 2019, at 12:47 PM, redroadsterman via Datsun-roadsters <datsun-roadsters at autox.team.net> wrote:
> 



About two weeks ago,  my battery split, spilling acid out. I think it is because my charging voltage is too high. I replaced the battery and just tested and I am getting around 17v at idle, and around 17.6 when I rev the engine. Should be around 14.5 I think. Is that right? This is a 69 1600. I have some parts from 69 and some from 70; I think the alternator is from 70. I believe when i first reinstalled this engine several years ago, I noticed the amp gauge was pegged at the top of its range, so I tried a different voltage regulator.  Didn't change anything.  So how I determine if the alternator is putting out too much voltage? And what do I do to fix it?
Thanks in advance.
Joseph



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