electrical problem?

[77/620RaTsooN]

if any can help with some info? i cant figure out were im getting a constent hot wires on the electric distributor while the key is off.

[datsunaholic]

A blown voltage regulator will do that. '77 was the last year for the external regulator. I've had it happen on 2 trucks. However, it would go cold once I clutch-killed the engine. But, if the regulator was blown AND the alternator had a blown diode it's do what you see.

 

Or, if your '77 has an ignition relay it could be shorted or backfed.

[77/620RaTsooN]

yea that could be it its a brand new altenator though scratch that.

weres this regulater located if u can tell me

[banzai510(hainz)]

I assume the vehicle stays running after you shut off the key?

Then it could be the regulator. The reg is on the side of the passenger fender inner well. should be a square looking canister of some kind. Disconneted the plug then shut off the key switch and see if its dies . If ye then its the regulator thats bad.

otherwise than that get a book to know what it looks like.

[77/620RaTsooN]

well its more like it has constent power but wont fire. everything works stereo, dashh beepers, lights just dont fire.?

[datsunaholic]

Somethings wired backwards. Constant 12V to the Distributor? Is this electronic or points? '77s had points stock, except Cali emissions ones. Points should NEVER have 12V to any point of the dist- it sends a ground signal to the coil and should be directly connected to the (-) post on the coil. I suppose it could have a stray 12V signal if the dist condenser is bad.

 

If it's Electronic, maybe it's fried.

[77/620RaTsooN]

its electric but its not fried thnks i fixed it yesterday

[banzai510(hainz)]

What was the fix?????????

So we can become smarter!!!!!!!

[77/620RaTsooN]

who ever owned it be fore me spliced into the egnition wire for an alarm. i was been dumb didnt notice that the wire wasnt even hooked up.