Pagoda SL Group
W113 Pagoda SL Group => Electrical and Instruments => Topic started by: mespe on February 07, 2009, 00:12:20
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Hi all,
I bought a 1967 250SL, that had been in storage for years. The battery in the car was disconnected, but the red wire going to the battery (by the + terminal) is grounded on the chassis, and the black wire goes off toward the engine and starter. It looks like this car (a Euro version) has a positive ground. I did a search and found a thread that says all pagodas are negative ground. So now I'm completely confused,,,
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Everything I have read say the SLs are negative ground. I have owned 2 of them and they were both negative ground.
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'in storage for years'
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It will most likely have a fried voltage regulator with the polarity reversed. It will still start and run like that. Switch it back and see if it's charging.
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Mespe,
Reading your description below makes me think that the ground cable (-), connected to the body, is just "red" in color". Color makes no difference, but typically negative is "black".
I would also guess that the battery in your car has the positive (+) terminal on the left side and negative (-) on the right side which makes the ground cable stretch & connect to the battery in a diagonal fashion.
In summary, just make sure the cable connected to the chassis is connected to the negative (-) terminal on the battery. The positive (+), longer cable, connects to the starter.
To make it easier in the future, next time you buy a battery, get one with the terminals reversed (neg=left; pos=right).
Bob :)
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OK Cool Consensus is Neg ground, that's where I'll start. thanks for all the input. Can't wait to get started on her,,,