'85 745 - starter/engine not grounded

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Old 01-13-2008, 05:29 PM
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Join Date: Jul 2007
Posts: 11
Default '85 745 - starter/engine not grounded

The short story is that on my 1985 745 Wagon, it starts right up if I run a jumper cable from the battery negative post directly to the head. If I clip on anywhere else (chassis, various bolts in the engine compartment that are brushed clean and shiny) it will give a single tick but not turn over.


Once the car gets running, I can disconnect the battery completely and it will run fine.

It seems like the starter must not be sufficiently grounded - though it is well connected to the engine block - so the engine block itself isn't grounded.

How is that grounding normally done?

 
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