Voltage Regulator issue

[geoff_k]

Hi

I changed the voltage regulator on my 1984 911.
Drove it a few times and all ok
Noticed Voltage jumping up to 15.1 and then back in spec then down to 12. It Revs do not influence the reading.

I think I have a faulty voltage regulator but asking if it could be anything else

geoff

[Ian Comerford]

Just to be clear, you changed your VR because of what? Is the problem with the new one the same as with the old one?

[Artfrombama]

Check the grounds

[geoff_k]

yes... same problem as before I changed the regulator.

The new one worked for a while.....

[Trackrash]

Originally Posted by Artfrombama

Check the grounds

And all the connections between the alternator and regulator, especially the black and blue wires.

[John W.]

Sounds like an intermittent connection. Check the ground strap between tranny and engine first. Then clean up all the alternator ones. I recently polished up all mine when I had a similar Issue. Good luck.

[proporsche]

Originally Posted by Trackrash

And all the connections between the alternator and regulator, especially the black and blue wires.

This.....

[geoff_k]

thankyou

I will give it a go this weekend