70 Eldo Timing, and Hot Hard Start
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500, 472, 425, 368 Discussion, 70 Eldo Timing, and Hot Hard Start in Cadillac Engine Technical Discussion; Hi, I'm new here, I just bought a 70 Eldorado. I have a few questions if you guys could help ...
  1. #1
    70Eldo8.2 is offline Cadillac Owners Member
    Automobile(s): Cadillac
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    70 Eldo Timing, and Hot Hard Start

    Hi, I'm new here, I just bought a 70 Eldorado. I have a few questions if you guys could help me out I would appreciate it.

    What should the timing be on a 70 500? Also where are the timing marks? I found the timing tab, but am having a hard time finding the mark.

    The car doesn't want to start (turn over) when its hot, I have been going through and cleaning all the cable ends, and I checked the starter, it seems ok, but I may replace it anyways. Is there a common problem for this condition?

    Thank You.

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  3. #2
    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
    Automobile(s): '80 Fleetwood Coupe, 1994 and 1995 Mercedes 140 Coupe
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    Re: 70 Eldo Timing, and Hot Hard Start

    If you replace the starter consider visiting a local rebuilder that you can actually talk with. Ask for 8 volt windings on the rebuild. These give new hope to high compression long stroke engines. Alternative would be a gear reduction unit. Also watch for anything that makes fuel boil when the engine is hot. Fuel lines bent and laying on hot mainfolds are not good. Worn carbonator parts and high floats are not good either. As you have already figured out, initial timing is critical on your car. Big failure was sticky mechanical advance in distributor. Check it out carefully. The starter and flywheel you save may be your own.

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