78 question (alternator)
Thread Starter
Instructor
Joined: Dec 2010
Posts: 106
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78 question (alternator)
Does the '78 have an external voltage regulator?
The battery has been draining dead for a while after a few days. Whenever I start the car if I forget to rev it up, the battery indicator shows about 12 charge. After revving it jumps to about 15-16 or so. I'm thinking the voltage regulator is bad but I don't want to go out and tromp through the snow to my shop just to look in there.
Also, do you all use the green or orange coolant? Guy at autozone said orange.
The battery has been draining dead for a while after a few days. Whenever I start the car if I forget to rev it up, the battery indicator shows about 12 charge. After revving it jumps to about 15-16 or so. I'm thinking the voltage regulator is bad but I don't want to go out and tromp through the snow to my shop just to look in there.
Also, do you all use the green or orange coolant? Guy at autozone said orange.
Instructor
Joined: Sep 2010
Posts: 229
Likes: 2
From: Grants Pass Oregon
Does the '78 have an external voltage regulator?
The battery has been draining dead for a while after a few days. Whenever I start the car if I forget to rev it up, the battery indicator shows about 12 charge. After revving it jumps to about 15-16 or so. I'm thinking the voltage regulator is bad but I don't want to go out and tromp through the snow to my shop just to look in there.
Also, do you all use the green or orange coolant? Guy at autozone said orange.
The battery has been draining dead for a while after a few days. Whenever I start the car if I forget to rev it up, the battery indicator shows about 12 charge. After revving it jumps to about 15-16 or so. I'm thinking the voltage regulator is bad but I don't want to go out and tromp through the snow to my shop just to look in there.
Also, do you all use the green or orange coolant? Guy at autozone said orange.
Thread Starter
Instructor
Joined: Dec 2010
Posts: 106
Likes: 0
the GEN light doesn't come on... however I'm not entirely sure it would come on. The fasten seatbelt (center console) and the brake light (between the tac/speedo) do come on.
Drifting
Joined: Feb 2008
Posts: 1,560
Likes: 4
From: Arlington texas
Instructor
Joined: Sep 2010
Posts: 229
Likes: 2
From: Grants Pass Oregon
have you done a forum search ? I had somewhat the same problem. My gen light stayed on but, dim. gauge showed about 14.5, batt. went dead after 2 days. took to autozone, they said ok. Went back 2 days later, took both batt. and alt. Batt. had bad cell, alt was over charging. Replaced both, no problems. Gen light compleats circut or trigers alt.
Last edited by 78 silver 78; Dec 28, 2010 at 11:46 AM.
