Alternator test off car - Can I? / How do I? |
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Alternator test off car - Can I? / How do I? |
Wyvern |
Dec 19 2019, 08:29 PM
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#1
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Member Group: Members Posts: 324 Joined: 7-October 15 From: San Francisco (East Bay) Member No.: 19,245 Region Association: Northern California |
Can I test my alternator off the car?
I have a choice of 2 units and would like to test. My local parts store says they cant test it out of the car, only when installed. Thanks |
bbrock |
Dec 20 2019, 10:25 AM
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#2
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
Called my FLAPS who assured me they could test an externally regulated alternator. Drove a half hour to town and handed it to them. The hooked it up to their test equipment. NOPE - couldn't test it out of the car. Drove 30 minutes back home with nothing to show for it. I just went through the bench testing procedures outlined in the factory manual with a multimeter. Those test all the components (diodes, windings, etc.) so my assumption is that if all the parts test ok, then it should work. We'll see...
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