Charging issue

jmcap · Nov 21, 2016

Hello,
The car is a 69 roadrunner. Trying to trouble shoot the reason for the voltmeter reading jumping from 8+ volts to 14+ volts when read at alternator and battery when car is running. I have replaced the alternator and have also replaced the V.R. with the stock style one. Prior to replacement both, the readings as described above were from 2+ to 8+ volts ( the V.R. then was a solid state replacement version).
Sorry, but I'm an Oldsmobile man ......... This is my Son's Monster :thumbsup:

. I'm just his backyard mechanic. My experience tells me the volt meter reading should be consistently reading 14+ when running. Would appreciate your input.
jmcap

Ranger16 · Nov 21, 2016

Check the connections on the back of your ammeter. I recently had a similar problem, but my tach was also bouncing around. Found the ammeter studs loose. I simply pulled the two wires and screwed them together, bypassing the ammeter. Problem solved.

jmcap · Nov 21, 2016

Ranger16 said:
Check the connections on the back of your ammeter. I recently had a similar problem, but my tach was also bouncing around. Found the ammeter studs loose. I simply pulled the two wires and screwed them together, bypassing the ammeter. Problem solved.

Thanks, will try and will let you know.

Ranger16 said:
Check the connections on the back of your ammeter. I recently had a similar problem, but my tach was also bouncing around. Found the ammeter studs loose. I simply pulled the two wires and screwed them together, bypassing the ammeter. Problem solved.

Thanks, will check. Won't get to car until Tuesday. I'll let you know how I make out.

moes · Nov 21, 2016

check to see if your connections in the bulkhead are corroded or burnt, especially the BLACK AND RED WIRES. If they are corroded , clean them up and then put some dielectric grease on them. This will stop them from corroding again and help with electricity flow. I would check all the bulkhead wires and then add dielectric grease and you will not have problems with the bulkhead in the future.

69a100 · Nov 21, 2016

Are you runnin points or Elec. ignig? It could be your problem, READ! http://www.imperialclub.com/Repair/Electrical/charging.htm

jmcap · Nov 21, 2016

69a100 said:
Are you runnin points or Elec. ignig? It could be your problem, READ! http://www.imperialclub.com/Repair/Electrical/charging.htm

Thanks. Running an MSD Box and Distributor. Didn't think of it as a source to consider. Will check.

jmcap · Nov 21, 2016

moes said:
check to see if your connections in the bulkhead are corroded or burnt, especially the BLACK AND RED WIRES. If they are corroded , clean them up and then put some dielectric grease on them. This will stop them from corroding again and help with electricity flow. I would check all the bulkhead wires and then add dielectric grease and you will not have problems with the bulkhead in the future.

Hmmmm.. Thanks will do.

bm02tj · Nov 21, 2016

The signal for the VR comes from the ing switch so yes your MSD could affect it if you have bad connections in the system
as they see the same power feed

jmcap · Nov 21, 2016

bm02tj said:
The signal for the VR comes from the ing switch so yes your MSD could affect it if you have bad connections in the system
as they see the same power feed

Thanks for your input. Sounds like there's a faulty connection somewhere from all the response I've received.

miller · Nov 23, 2016

Might take a peek at the firewall harness block, too.

Charging issue

jmcap

Member

Ranger16

Well-Known Member

jmcap

Member

moes

Well-Known Member

69a100

Well-Known Member

jmcap

Member

jmcap

Member

bm02tj

Well-Known Member

jmcap

Member

miller

Well-Known Member

Similar threads