Voltage Regulators, Who makes a good replacement? |
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Voltage Regulators, Who makes a good replacement? |
Brian Fuerbach |
Oct 12 2022, 01:53 PM
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#1
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Member Group: Members Posts: 119 Joined: 1-July 19 From: Orange, Ca Member No.: 23,266 Region Association: Southern California |
I have a Bosch solid state regulator and have been noticing low and erratic charge rates lately. Swapped it for a nos Bosch mechanical reg that I had in my stash. Charge rate is 13.8-14v now, perfect but, the mechanical regulator gets pretty warm after running for awhile. I measured the case at 130F. Is this normal for a mechanical regulator?
I would like to get a solid state replacement but the Bosch regs cost almost $400. What gives? did they stop making them? What is the currently recommended replacement? |
914Sixer |
Oct 12 2022, 04:15 PM
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#2
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914 Guru Group: Members Posts: 8,902 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region |
I have two NOS solid state Bosch left. I can do $124 shipped for one. Agree that the prices are stupid for these. You might check your relay board, may be corroded under tar causing relay to heat up.
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porschetub |
Oct 12 2022, 09:09 PM
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#3
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Advanced Member Group: Members Posts: 4,704 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
I have two NOS solid state Bosch left. I can do $124 shipped for one. Agree that the prices are stupid for these. You might check your relay board, may be corroded under tar causing relay to heat up. (IMG:style_emoticons/default/agree.gif) undo the relay board and turn it over,if it's getting that hot the tar underneath may be melting,check all the large diameter positive wires for insulation heat damage also. Firstly check your heatgun ?. |
Brian Fuerbach |
Oct 12 2022, 10:39 PM
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#4
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Member Group: Members Posts: 119 Joined: 1-July 19 From: Orange, Ca Member No.: 23,266 Region Association: Southern California |
I have two NOS solid state Bosch left. I can do $124 shipped for one. Agree that the prices are stupid for these. You might check your relay board, may be corroded under tar causing relay to heat up. (IMG:style_emoticons/default/agree.gif) undo the relay board and turn it over,if it's getting that hot the tar underneath may be melting,check all the large diameter positive wires for insulation heat damage also. Firstly check your heatgun ?. I looked at the bottom of the relay board and and it looks really good but the original solid state reg did not get hot. The mechanical replacement is getting hot. I measured the 130F with a Ratech IR non contact thermometer that has been recently checked against some known values so I believe it is correct. The reg seems to top out at 130 which was confirmed every time over a couple of drives. I have read on the google that “mechanical” regs act as heat sinks in their process of regulation. Anyone have a “Bosch mechanical” reg that can confirm running temp? At least touch. |
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