• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

1970 RR Alternator Gauge all over the place

Lucky Lar

Well-Known Member
Local time
5:42 AM
Joined
Aug 26, 2015
Messages
190
Reaction score
50
Location
San Rafael
My alternator gauge jumps all over the place

Any suggestions where to start

Thanks Larry
 
There's a couple of things to check. First check that the voltage regulator has good ground to the chassis and second check and clean the bulkhead connector connections paying close attention
to the heavy gauge red and black wires in the bulkhead
 
You also might want to check the positive stud on the back of the alternator. My buddies rebuilt alternator ended up having the nut loosen up and caused a direct short to the casing. Fried his wiring and also melted the fusable link wire too.
 
Auto Transport Service
Back
Top