 Hot Voltage Regulator? |
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| MikeM |
 Oct 27 2016, 05:51 PM
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#1
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Senior Member  Group: Members Posts: 564 Joined: 16-May 10 From: Calgary, Canada Member No.: 11,733 Region Association: Canada  |
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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| MikeM |
Oct 30 2016, 08:34 AM
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Senior Member Group: Members Posts: 564 Joined: 16-May 10 From: Calgary, Canada Member No.: 11,733 Region Association: Canada |
Thanks for the link!!
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| pbanders |
Oct 30 2016, 08:47 AM
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#3
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Senior Member Group: Members Posts: 939 Joined: 11-June 03 From: Phoenix, AZ Member No.: 805 |
QUOTE(MikeM @ Oct 30 2016, 07:34 AM)  Thanks for the link!! Mike, if you do remove the VR from the relay board, do NOT relocate it to sheet metal in the car and screw it down. There's a reason that Porsche attached the metal case to the plastic side of the relay board, they didn't want you to ground the VR case. Flip it around like it was shown in the link. From my posting in 2007: "As I said earlier, it looks like I have an alternator ground strap fault. If you have a similar fault, and add a ground wire between the VR case and ground, then ALL OF THE CURRENT SUPPLIED BY THE ALTERNATOR WILL FLOW THROUGH THAT JUMPER WIRE. It could easily exceed 20A, and could start a fire. Bosch and Porsche must have recognized this potential problem and decided to let D- on the VR case float. That way, if there ever was a ground fault, you wouldn't have an unsafe ground current path. I should have known that this wasn't a design flaw - it was actually a safety feature. Smart guys, those Bosch and Porsche dudes." Like I suggested then, any time you suspect you have a charging system problem, check to see if you have a poor alternator ground. Many cars lack any kind of alternator ground strap, and the only ground path is through the corroded hinge. |
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Posts in this topic
MikeM Hot Voltage Regulator? Oct 27 2016, 05:51 PM
pbanders
Hi all...I checked my charging voltage at the bat... Oct 27 2016, 06:27 PM MikeM Thanks Brad...I won't worry about it then.
Mik... Oct 27 2016, 06:57 PM
Bartlett 914
Thanks Brad...I won't worry about it then.
Mi... Oct 28 2016, 06:45 AM pbanders
Thanks Brad...I won't worry about it then.
M... Oct 28 2016, 07:52 AM MikeM To clarify, I switched to my spare regulator that ... Oct 28 2016, 08:39 AM Bartlett 914
To clarify, I switched to my spare regulator that... Oct 28 2016, 09:34 AM pbanders
To clarify, I switched to my spare regulator that... Oct 28 2016, 02:11 PM oakdalecurtis Before doing anything else, lift your relay board ... Oct 29 2016, 02:49 PM GregAmy If you're concerned it might be the relay boar... Oct 30 2016, 07:58 AM MikeM Thanks Brad...is the alternator grounded at the re... Oct 30 2016, 09:15 AM pbanders
Thanks Brad...is the alternator grounded at the r... Oct 30 2016, 01:45 PM |
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