Charging System with wild fluctuations.
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09-04-2009, 01:03
Post: #1
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Charging System with wild fluctuations.
I have a 1980 FC 33 Diesel that has suddenly developed wild charging
fluctuations. The Volt Meter will fluctuate between 10-14 volts very violently and increase with engine speed. After about 20 minutes the fluctuation slows but shows a discharge on the AMP meter. I rebuilt the alternator with same results. Anyone with experience or comments would be appreciated. |
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09-04-2009, 01:24
Post: #2
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Charging System with wild fluctuations.
Check and test the voltage regulator
check all the cables to the batteries I think you have a short or bad ground Stephen Dupree Products --- In WanderlodgeForum@yahoogroups.com, "vabroker1" > > I have a 1980 FC 33 Diesel that has suddenly developed wild charging fluctuations. The Volt Meter will fluctuate between 10-14 volts very violently and increase with engine speed. After about 20 minutes the fluctuation slows but shows a discharge on the AMP meter. I rebuilt the alternator with same results. Anyone with experience or comments would be appreciated. > |
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09-04-2009, 16:29
Post: #3
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Charging System with wild fluctuations.
Is your voltage regulator in your alternator or seperate and did you replace it?
Wayne
1985 PT40
From: vabroker1 To: WanderlodgeForum@yahoogroups.com Sent: Friday, September 4, 2009 8:03:16 AM Subject: [WanderlodgeForum] Charging System with wild fluctuations. I have a 1980 FC 33 Diesel that has suddenly developed wild charging fluctuations. The Volt Meter will fluctuate between 10-14 volts very violently and increase with engine speed. After about 20 minutes the fluctuation slows but shows a discharge on the AMP meter. I rebuilt the alternator with same results. Anyone with experience or comments would be appreciated. |
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09-04-2009, 16:48
Post: #4
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Charging System with wild fluctuations.
is the belt tight? run it and spray belt dressing to see if it fixes the problem
prior to adjusting. I would drop it off at a good shop to bench test if it needs to come off again. could be an incompatible part used in PO rebuild then duplicated in your rebuild. Stp makes a sticker about the size you need. Greg of Tim&Greg 94ptca . --- In WanderlodgeForum@yahoogroups.com, Wayne Kotila > > Is your voltage regulator in your alternator or seperate and did you replace it? > Wayne > 1985 PT40 > > > > > ________________________________ > From: vabroker1 > To: WanderlodgeForum@yahoogroups.com > Sent: Friday, September 4, 2009 8:03:16 AM > Subject: [WanderlodgeForum] Charging System with wild fluctuations. > > > I have a 1980 FC 33 Diesel that has suddenly developed wild charging fluctuations. The Volt Meter will fluctuate between 10-14 volts very violently and increase with engine speed. After about 20 minutes the fluctuation slows but shows a discharge on the AMP meter. I rebuilt the alternator with same results. Anyone with experience or comments would be appreciated. > |
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09-05-2009, 23:46
Post: #5
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Charging System with wild fluctuations.
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