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Battery is Hot!
Went for a 200 mile or so trip this morning, checked the oil and it needed a little. Killed the motor to add the oil, when I tried to restart all it did was click. Raised the lid to check the battery voltage (13.31) and the battery was hissing and hot to the touch. Condensation was dripping off the underside of the lid. I have a feeling I need a new voltage regulator and battery. What do other forum members think? Why so much condensation? The windshield above the defroster vents and the speedometer has condensation also. I have read that a little bit of moisture on the fuel gauge is sometimes normal stuff for these cars. Sorry for the long post. Help please
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09-08-2013, 10:53 AM
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RETIRED
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Alternator is likely overcharging.
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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09-08-2013, 11:01 AM
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Registered
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You are correct about the VR and you either will need a new battery or at least replenish the lost water.
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The "collection" 1983 911 SC Targa (1 of 1430 imported) 1994 MB E320 Coupe (1 of 825 imported) 1992 MB 190E 2.6 2004 Volvo V70 2.5 Turbo (1 of a bazillion imported) 
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09-08-2013, 11:10 AM
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Battery was toast. I am going to tear into the Voltage regulator, I do not have a tool kit or the wrench to hold the fan from turning counter clockwise. Any suggestions on how to hold the fan? Thank You for the help on my questions concerning this 911.
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09-08-2013, 01:34 PM
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RETIRED
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Replace the battery, fire it up and check the output with a volt meter.
12.5 at rest, 13+ at idle and no more than 14.2 at 2500 rpms. If out side those numbers you have an alternator/VR problem. No sense pulling it until you check it.
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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09-08-2013, 01:37 PM
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Formerly known as Syzygy
Join Date: Mar 2008
Location: Calgary, AB
Posts: 4,420
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If the voltage readings look normal when you're in the driveway, I'd hook something up to your cigarette lighter and measure when driving. When I had a VR go, everything looked like it should, but I was certain I had an issue. After driving a couple blocks, the voltage spiked to about 16.5.
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Kevin 1987 ROW coupe, Marine blue, with a couple extra goodies. The cars we love the best are the ones with human traits, warts and all. |
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09-08-2013, 01:56 PM
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Registered
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in absence of the wrench I suppose you could find a small bolt that will fit in the hole then use a piece of wood to hold against the bolt as you turn the fan bolt.
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The "collection" 1983 911 SC Targa (1 of 1430 imported) 1994 MB E320 Coupe (1 of 825 imported) 1992 MB 190E 2.6 2004 Volvo V70 2.5 Turbo (1 of a bazillion imported)
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09-08-2013, 02:14 PM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,505
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Sometime you can just push in hard on the belt, midway between the two pulleys, and that will hold the pulley enough to loosen the nut.
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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09-08-2013, 02:21 PM
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Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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Fan
Quote:
 Good luck, Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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09-08-2013, 03:31 PM
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Thanks for the wrench Gerry!
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09-08-2013, 03:47 PM
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Registered User
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S2GART, the bolt idea worked!!! All I need to do is take loose ground wire to alt that is mounted on engine and mark my alt. wires and it will be out. Thanks!
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09-08-2013, 05:03 PM
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1985 Porsche Carrera
Da cab
