|
|
Joined: Jan 2002
Posts: 175
Shade Tree Mechanic
|
OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 175 |
I have a 1972 A body, ok its a Olds Cutlass. Has alternator with external voltage regulator. Idiot light came on indicating lack of charging. Took alternator to rebuilder to bench test it, and it was fine.
He tried to explain to me how to test the voltage regulator using some jumper wires. I installed a new regulator last summer for about $15.
Can someone explain this process to me for a better understanding? I have no problem slapping on another new regulator since they are affordable, but would like to get some education for my money.
|
|
|
|
Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
|
|
|
|
|
Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
|
|
Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
This is a shot in the dark, but is a posibility. Alternator quits charging, take it off and put on the test machine, works great????? Usually the problem is worn brushes, and the movement of the act of removal shakes the brushes into contact for one last time. So, if it tests good on the machine, tear it apart and check the brushes. Nothing lost, nothing gained. I have had very little problems with regulators, most always the alternator.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
|
|
|
|
|
Joined: Jan 2002
Posts: 175
Shade Tree Mechanic
|
|
OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 175 |
Thanks for the info, but this automotive electonics rebuilder is tops. D don't doubt that what you suggest is possible, but I am confident of his job restoring the alternator.
I do ask again for help in better understanding how to diagnos a faulty voltage regualtor, and possible adjustments to one.
|
|
|
|
|
Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
|
|
Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
There are different tests you can perform to test a voltage regulator. You might want to check out your shop manual since it describes the various step-by-step tests, with detailed illustrations, that you can do based on the diagnosed problem. I have found that alternators are, for the most part, pretty much bullet proof for years before they need rebuilding. Myself, I have had way more problems with voltage regulators than anything else. On my 1969 Impala for example, the external voltage regulator developed the same problem that you described in your first posting. After testing it turned out that the voltage regulator was defective. That was the second one that was installed on the car since new. Replaced that regulator with another new voltage regulator. The same problem still existed. Installed yet another new regulator and the problem still existed. In a period of an hour or so four new voltage regulators were installed on the car before the problem was finally cured. Turned out that all of the brand new voltage regulators were defective right out of the box except for the last one! :o :cry: 
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
|
|
|
|
|
