denso alternator overcharging - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer denso alternator overcharging

Print Thread

denso alternator overcharging #1326729 10/27/12 07:19 AM 10/27/12 07:19 AM
Joined: Jul 2010 Posts: 64 Iowa G GreenBird OP member
GreenBird OP member G Joined: Jul 2010 Posts: 64 Iowa	I did the denso alternator conversion. Also have done the ammeter bypass. All new wiring. Only problem is that once and a while, my voltmeter will show momentary spikes, like the alternator is overcharging for a moment, then not overcharging. Sounds like a ground issue somewhere. Ordinarily, I would think it was a voltage regulator ground problem, but the denso has an internal regulator. 69 Road Runner. Any ideas? Last edited by GreenBird; 10/27/12 07:21 AM.

Re: denso alternator overcharging [Re: GreenBird] #1326730 10/27/12 12:48 PM 10/27/12 12:48 PM
Joined: Feb 2003 Posts: 8,678 A Andrewh master
Andrewh master A Joined: Feb 2003 Posts: 8,678	regulators change due to ground or sensing voltage. not sure how the internal regulated work, but that is the only other thing to check, other than a bad alt.

Re: denso alternator overcharging [Re: Andrewh] #1326731 10/27/12 12:51 PM 10/27/12 12:51 PM
Joined: Jan 2003 Posts: 32,939 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,939 Grand Prairie,Texas	How many volts does it spike to?

Re: denso alternator overcharging [Re: GreenBird] #1326732 10/27/12 01:19 PM 10/27/12 01:19 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	I had my 120 denso overcharging time to time ended up being the contact on the keyed power plug at the regulator. put a new end on the keyed power and that fixed it. so contact through the bulkhead could also give it a low voltage signal and want it to charge more!

Re: denso alternator overcharging [Re: stumpy] #1326733 10/27/12 07:59 PM 10/27/12 07:59 PM
Joined: Jul 2010 Posts: 64 Iowa G GreenBird OP member
GreenBird OP member G Joined: Jul 2010 Posts: 64 Iowa	Quote: How many volts does it spike to? Looks like about 16 on the gauge. It is very momentary -- the gauge needle will flick back and forth. My bulkheard connectors and wires should be good as they all are new. I ordinarily would think this was a voltage regulator ground issue. Does anyone think I should run an extra ground wire from the alternator case to ground? Any issues with doing that?

Re: denso alternator overcharging [Re: Dodgem] #1326734 10/27/12 08:02 PM 10/27/12 08:02 PM
Joined: Jul 2010 Posts: 64 Iowa G GreenBird OP member
GreenBird OP member G Joined: Jul 2010 Posts: 64 Iowa	Quote: I had my 120 denso overcharging time to time ended up being the contact on the keyed power plug at the regulator. put a new end on the keyed power and that fixed it. so contact through the bulkhead could also give it a low voltage signal and want it to charge more! I will recheck all my connections at the alternator. Thanks.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1