I may want to test the VR, but I'm not sure how to do it.
Put a voltmeter on the battery and observe.
-- Jim
Plus, turn on the heater, headlights, flasher, etc to put a load on the
system. The voltage should be within a range of about 12.5 to 13.25
volts with and without the load .
Bill
1981 399 TD
Jim Cathey wrote:
I may want to test the VR, but I'm not sure how to do it.
Put a
: Wednesday, August 23, 2006 7:54 PM
Subject: Re: [MBZ] Voltage Regulator Test
I may want to test the VR, but I'm not sure how to do it.
Put a voltmeter on the battery and observe.
-- Jim
___
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How does this kind of test show if the alt is bad (or good) and the VR
is bad (or good)?
The voltage should hold within acceptable range under the full
range of load conditions.
Or is the VR the only thing that will typically go bad in a alternator?
No. Lots of other things can go wrong.
LarryT wrote:
Howdy,
After replacing my alternator was wondering how the VR might be tested?
I replaced the alternator because it was not charging and I didn't know the
history of the alternator so I changed the whole thing. If I have a problem
with the charging system again I may want to
On Wed, 23 Aug 2006, LarryT wrote:
Or is the VR the only thing that will typically go bad in a alternator?
Diode packs CAN fail. The VR also has the brushes which wear, and it has a
spring/leaf connection to the diode pack. That can develop corrosion with
... interesting... results. Remove
Howdy,
After replacing my alternator was wondering how the VR might be tested?
I replaced the alternator because it was not charging and I didn't know the
history of the alternator so I changed the whole thing. If I have a problem
with the charging system again I may want to test the VR,
