Alternator light on? |
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Alternator light on? |
914Toy |
May 30 2020, 01:19 PM
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#1
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Senior Member Group: Members Posts: 717 Joined: 12-November 17 From: Laguna beach Member No.: 21,596 Region Association: Southern California |
My alternator light comes on with ignition on, and stays on with engine running, and voltage stays at 12V regardless of rpm's. Was charging regularly at nearly 14V. The fan belt is in good order at spec tension. The alternator was reconditioned a couple of years ago and now has about 5,000 miles on it. The diode behind the gauge was also replaced, but I have had the gauge in and out a few times working on other issues - possibly damaging it(?)
Before removing the alternator for testing, could the diode behind the gauge be faulty preventing charging? If so, what is the spec of these diodes? Your suggestions will be welcome. |
porschetub |
Jun 4 2020, 04:06 PM
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#2
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Some more tips I picked up when doing mine ;
1- make sure the ground strap engine case to altenator is in good condition,mine was pretty crusty so I just replaced it,this advice came from Perry when he made my loom. 2- make sure you mark the top of the f/glass air deflector before removing as it can only work one way. 3- I found the nuts holding the air deflector were all loose,I replaced them with nylock nuts and larger washers to help prevent cracking the thin f/glass flange. 4- more sure you don't overtighten the fan housing strap otherwise the fan will contact in places...ask me how I know. In summary its not an easy job so best to do it right the first time. |
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