Shake Rattle and Roll

Discussion in 'Technical' started by Columbus Comet, Jun 28, 2009.

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  1. Columbus Comet

    Columbus Comet Member

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    Ok guys started the Comet this year and the engine seems to be shaking. It's not a miss just shakes the car. Changed plugs, dist cap, rotor, fuel filter, cleaned carb, checked timing 12 degrees btdc, checked for vaccum leaks, still shaking. Any ideas.
    Thanks
    Joe
     
    Columbus Comet, Jun 28, 2009
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  2. 72Comet

    72Comet Member

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    Do you have a stock balancer? They can come apart as the rubber deteriorates
     
    72Comet, Jun 28, 2009
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  3. rthomas771

    rthomas771 Member

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    Could be about anything...bad fuel...plug wires...float(s) hanging...valves sticking.
     
    rthomas771, Jun 28, 2009
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  4. Columbus Comet

    Columbus Comet Member

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    I have the stock balancer but it's new ford piece. Guess I better check it though. What's funny it only does it at idle. Soon as you give it gas it's gone.
     
    Columbus Comet, Jun 28, 2009
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  5. cdeal28078

    cdeal28078 Member

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    If it smooths out above an idle I would have to guess the carb. is out of adjustment without any more information
    clint
     
    cdeal28078, Jun 28, 2009
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  6. Columbus Comet

    Columbus Comet Member

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    Carb adjustment is fine, adjusted with a vacuum guage and has great vacuum.
    Went back and checked the torque convertor bolts today, they were fine.
    Going crazy here.
    Joe
     
    Columbus Comet, Jun 28, 2009
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  7. Bubba Bob

    Bubba Bob Member

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    How long has in been sitting? Might just needed some driving and/or SeaFoam. As well as fresh gas.

    Tank could also have started to rust a tad, check the fuel filter.
     
    Bubba Bob, Jun 28, 2009
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  8. mashori

    mashori Member

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    have you taken it out for a spin? does the shaking go away at certain speeds?
     
    mashori, Jun 28, 2009
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  9. Columbus Comet

    Columbus Comet Member

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    It goes away at about 1100 rpm's. It runs great, just when I come to a stop it shakes at idle.
     
    Columbus Comet, Jun 28, 2009
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  10. mashori

    mashori Member

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    what if you cruising and you put it in neutral? still vibrate?

    if you come to a stop does it shake in neutral, park or with your foot on the brake?
     
    mashori, Jun 28, 2009
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  11. Columbus Comet

    Columbus Comet Member

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    shakes in neutral, park and in drive
     
    Columbus Comet, Jun 28, 2009
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  12. maverick75

    maverick75 Gotta Love Mavs!

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    The mav is gone but i'm still here!
    My mav used to do that all the time,i just tought it was normal because of all the torque lol, or just cause of the old motor mounts i was using.
     
    maverick75, Jun 28, 2009
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  13. mashori

    mashori Member

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    so it's not anything in the drive train, only engine.

    Idle is correct right? not too low? I think you mentioned that already. I don't think it could be flywheel really cause it would stop in neutral and wouldn't be gone at 1100 rpm.

    That balancer comment might be correct. Any chance?
     
    mashori, Jun 28, 2009
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  14. 20cows

    20cows Member

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    Stock cam?
     
    20cows, Jun 29, 2009
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  15. Columbus Comet

    Columbus Comet Member

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    It has Edelbrock Performer top end kit. The engine has 1000 miles on it. Last year was fine and all winter when I would start it, it was fine.
     
    Columbus Comet, Jun 29, 2009
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