Charging problems

[sjburnett]

Hi, about 6 months ago I started having problems with the charging system on my 65. I went ahead and replaced the altenator, voltage regulator, and the battery cables since they were all looking a little worse for wear. Things worked beautifully up untill about a week ago when my system stopped charging. I bought a new VR and replaced it again. With the new VR in place the car now has a draw that drains the battery over night, and when the car is running it over charges my battery instead of not charging it

Is it possible that they sold me a faulty VR? Or is it more likely that the old VR was masking another fault in the system? I put the old VR back on and the altenator stops charging again and the drain goes away. Any thoughts or ideas are appreciated thanks.

 

[Rusty67]

Hi, about 6 months ago I started having problems with the charging system on my 65. I went ahead and replaced the altenator, voltage regulator, and the battery cables since they were all looking a little worse for wear. Things worked beautifully up untill about a week ago when my system stopped charging. I bought a new VR and replaced it again. With the new VR in place the car now has a draw that drains the battery over night, and when the car is running it over charges my battery instead of not charging it

Is it possible that they sold me a faulty VR? Or is it more likely that the old VR was masking another fault in the system? I put the old VR back on and the altenator stops charging again and the drain goes away. Any thoughts or ideas are appreciated thanks.

Sounds like the old VR is bad and so is the new one. Convert to a 3G alternator and get rid of your problem.

 

[HistoricMustang]

Hi, about 6 months ago I started having problems with the charging system on my 65. I went ahead and replaced the altenator, voltage regulator, and the battery cables since they were all looking a little worse for wear. Things worked beautifully up untill about a week ago when my system stopped charging. I bought a new VR and replaced it again. With the new VR in place the car now has a draw that drains the battery over night, and when the car is running it over charges my battery instead of not charging it

Is it possible that they sold me a faulty VR? Or is it more likely that the old VR was masking another fault in the system? I put the old VR back on and the altenator stops charging again and the drain goes away. Any thoughts or ideas are appreciated thanks.

Check your engine ground. Better yet, add a second ground off the block.

HistoricMustang
www.historicmustang.com

 

[sjburnett]

Check your engine ground. Better yet, add a second ground off the block.

HistoricMustang
www.historicmustang.com

Actually I do have a ground from the block to the firewall. Didn't think about the ground since the cable was replaced less then a year ago but disconnecting it and making sure it's clean couldn't hurt.

I'll probably just replace the VR again for now and wait on the 3G altenator untill I can afford it. Is that upgrade as simple as just adding a 2 gadge wire to the hot side of the soleniod, a ground wire, and hooking up the ignition wire? Or would I be looking at new brakets as well?

 

[Rusty67]

Its a bolt in physically. The wiring is slightly more complex then that but thats the basics of it. There are tons of 3g swap instructions on this forum already, check them out.