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Thread: 73 S - engine bay wiring - several grounding questions

  1. #1

    73 S - engine bay wiring - several grounding questions

    I would appreciate confirmation of several bits of wiring per the attached photo. Both ground wires originate from the body ground stud to the left of the fuel console...is the 10mm brown wire eyelet a 'ground' at one of the fuel console mounting bolts, and is the braided ground for the engine bay electrical panel where it mounts to the body? The factory wiring diagram seems to indicate such...would just like to be sure. Thank you.
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  2. #2
    Brown is ALWAYS ground.
    Jake
    Early 911S Registry Member #2799
    1973 911S - "Tangerine Tornado" - Two Time SCCA Solo II National Champion (1976 and 1981)
    1967 Corvette Roadster (Black/Black/Black) 4-speed

  3. #3
    Senior Member
    Join Date
    Oct 2010
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    Southern Ca.
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    Braided is for the electric panel , sandwiches between panel and mount : factory masks this area from paint .

  4. #4
    Quote Originally Posted by Richy View Post
    Braided is for the electric panel , sandwiches between panel and mount : factory masks this area from paint .
    Thank you...I had the panel powder-coated so I'll ensure anywhere any grounds are clean. Does anyone have confirmation on the brown wire eyelet destination...yes, I know it is a ground, but does it attach to the fuel console? I assume the solenoid that sits on top of the console (where the gray/white wire plugs into) needs a ground. Thanks to all.

  5. #5
    There is a ground wire from the fuel filter housing to the ground stud on the fender. The eyelet goes under the forward (towards front of car) 10mm bolt that bolts the fuel filter housing to the black bracket.
    Early S Registry member #90
    R Gruppe member #138
    Fort Worth Tx.

  6. #6
    Quote Originally Posted by edmayo View Post
    There is a ground wire from the fuel filter housing to the ground stud on the fender. The eyelet goes under the forward (towards front of car) 10mm bolt that bolts the fuel filter housing to the black bracket.
    Ed - thank you for the needed confirmation...as always you are most helpful and generous with your knowledge. P.S. posting my next question in a minute re tunnel exit accelerator linkage bits.

  7. #7
    you can just see the braided wire sneaking behind the panel in this picture
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    Early 911S Registry #750
    1970 911E - The Good Stuff
    2001 Toyota Landcruiser

  8. #8
    I think you have the electrical harness going through the tube in the longitudinal and the fuel pipe captured in the clip for the harness. This should be the other way around, the fuel pipe goes through the longitudinal and the harness goes in the cip.
    1966 911 #304065 Irischgruen

  9. #9
    Quote Originally Posted by 304065 View Post
    I think you have the electrical harness going through the tube in the longitudinal and the fuel pipe captured in the clip for the harness. This should be the other way around, the fuel pipe goes through the longitudinal and the harness goes in the cip.
    I am unclear if you are referring to my original post and photo or that by 304065? In any event, what is going through the tube in my longitudinal is indeed the fuel pipe...seems to be the same for 304065. I appreciate the alert..never hurts to double-check!

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