Voltage question
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Instructor
Joined: Aug 2003
Posts: 112
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From: Fairfield CT
Voltage question
I took a few volage readings of my electrical system. All readings were taken at the battery terminals.
1966 427/390 with original voltage regulator, replaced alternator (1100628 - I think it is for a 63-64 application)
Before starting car = 12.9V
After starting (car still at fast idle) = 14.8 - 15.0V
Ammeter also shows 20 A charging for a short time
Car running and warmed up = 14.0V
I was expecting to see somewhere around 14.5V at all times when the car is running. Are the readings that I have unusual? Is it time for a regulator rebuild?
1966 427/390 with original voltage regulator, replaced alternator (1100628 - I think it is for a 63-64 application)
Before starting car = 12.9V
After starting (car still at fast idle) = 14.8 - 15.0V
Ammeter also shows 20 A charging for a short time
Car running and warmed up = 14.0V
I was expecting to see somewhere around 14.5V at all times when the car is running. Are the readings that I have unusual? Is it time for a regulator rebuild?
All those readings seem completely normal. 
