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> Hot Voltage Regulator?
MikeM
post Oct 27 2016, 05:51 PM
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Hi all...I checked my charging voltage at the battery and it was high. It was almost 16.
So I went to install my spare and the regulator was very hot!! I've never noticed before because I never checked!! Should it be hot? I installed my spare and it allowed a charge rate of 13.4 but it also began to get hot.
Hope my alternator isn't bad!!
Cheers
Mike
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pbanders
post Oct 27 2016, 06:27 PM
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QUOTE(MikeM @ Oct 27 2016, 04:51 PM) *

Hi all...I checked my charging voltage at the battery and it was high. It was almost 16.
So I went to install my spare and the regulator was very hot!! I've never noticed before because I never checked!! Should it be hot? I installed my spare and it allowed a charge rate of 13.4 but it also began to get hot.
Hope my alternator isn't bad!!
Cheers
Mike


13.4V is OK for charging, 16V isn't. It's going to be hot when you check it at idle because the regulator is running at a high duty cycle. I assume it's mechanical (i.e. original stock)? You might want to consider switching to a transistorized regulator, there's another thread going where this is discussed. If you're worried about your alternator, any reputable shop can check it in-car quickly by putting a scope on it and seeing what the output looks like.
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