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  #1  
Old 10-31-2012, 06:05 AM
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Location: Freehold, NJ
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Battery draining on both WVO conversions

I have an 83 300SD and an 80 300TD. Both are identical setups with a heater unit (glow plug) from mercedes source and injector line heater wraps by fatty wagons. Ever since hooking in the injector line wraps my cars at idle seem to lose power. If the lights are on at night and the heat or wipers and I get to a destination and shut off the car and then try to start it, its almost completely dead. This is on a NEW battery also. Anyone have issues with this and would a stronger alternator (if even made) help. I'm in NJ so I NEED the extra heat to make the system work in the winter. Thanks for any ideas.
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1979 Mercedes 300SD 314k
1988 Mercedes 560SEL (parts car)

2002 Toyota 4Runner
1950 Packard 8
2006 Ford Ranger 4x4 (manual)
2010 Chrysler Sebring Convertible

Previous German cars-
2001 Mercedes SL500
1983 Mercedes 300SD
2011 BMW 328i (manual)
2008 BMW 535xi (manual)
2006 BMW M3 (manual)
1980 Mercedes 300TD
2006 BMW 750i
1996 Mercedes E300D
1994 BMW 740i
2006 BMW 330xi (manual)
1999 E300DT Smoke silver/black 253k
2012 BMW 535i Xdrive M-Sport
1984 300TD-T 304k
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  #2  
Old 10-31-2012, 09:24 AM
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I used stock alternator,but made sure my regulator was new.
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Old 10-31-2012, 08:52 PM
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Location: Ft Lauderdale FL
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weak alternator

They are barely able to keep up with all of the electrics in stock condition. Now you have not one but two high power add ons. That is why Fattywagon sells the alternator upgrade. It has to be the most common upgrade to an old mercedes.

I met a guy at the junkyard that modified the mount and installed Cadillac alternators usually from the junkyard. That sounds really difficult to me, but a great idea.
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Old 10-31-2012, 10:48 PM
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Just a suggestion, but many people add heat by using the available heat from the coolant system. A flat plate heat exchanger is a pretty simple way to get your oil up to 165-180 without straining the electric system.
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Old 11-01-2012, 03:11 AM
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Location: Freehold, NJ
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Quote:
Originally Posted by grease lightnig View Post
They are barely able to keep up with all of the electrics in stock condition. Now you have not one but two high power add ons. That is why Fattywagon sells the alternator upgrade. It has to be the most common upgrade to an old mercedes.
I'll have to check that out. I had no idea they had it. thanks!

I need to up the amps on all my cars because of add ons. Not just for the engine. So i'll definitely look into it.
__________________
1979 Mercedes 300SD 314k
1988 Mercedes 560SEL (parts car)

2002 Toyota 4Runner
1950 Packard 8
2006 Ford Ranger 4x4 (manual)
2010 Chrysler Sebring Convertible

Previous German cars-
2001 Mercedes SL500
1983 Mercedes 300SD
2011 BMW 328i (manual)
2008 BMW 535xi (manual)
2006 BMW M3 (manual)
1980 Mercedes 300TD
2006 BMW 750i
1996 Mercedes E300D
1994 BMW 740i
2006 BMW 330xi (manual)
1999 E300DT Smoke silver/black 253k
2012 BMW 535i Xdrive M-Sport
1984 300TD-T 304k
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