can I remove my flywheel w/o pulling the motor
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can I remove my flywheel w/o pulling the motor

  1. #1
    Senior Member flynryan's Avatar
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    Default can I remove my flywheel w/o pulling the motor

    I have a 21 ultra stealth w/Indmar 502 and a legend jet. There are 3-4 teeth missing on the flywheel and occassionally the motor stops just there so it wont crank w/o turning the harmonic balancer by hand. Can I remove the flywheel inside the boat or does the motor have to be pulled? The boat and motor are a 2002.
    Thanks for the help

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  3. #2
    Cas
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    Angry American Cas's Avatar
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    the only way to get the flywheel/flexplate off is to remove the driveline. In order to remove the driveline, you will need to at least move the engine forward or the pump back. It's usually less work to move the engine than it is to move the pump.

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    I agree with cas

    If you can at least get the motor loose and hanging from a engine puller and just slide it forward enough to come off the pump shaft you can leave it in the boat and for the most part hooked up.

    Do you have a rail kit or a 3 point mount setup?

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    Senior Member flynryan's Avatar
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    it's not on rails.

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    Boss of the McIntyre Mob danhercules's Avatar
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    I can get my driveline out with out moving the motor. Its a bitch tho. Got to take apart the u-joints. Give it a shot.

    If not, put some chains on the motor and undo the motor mounts and bring it forward a few inches with out undoing everything else.


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    Senior Member Brendellajet's Avatar
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    Some drivelines can be removed from the boat without moving the motor or the pump. Hang the back of the motor on a cherry picker, yank driveline, pull the rear mount/bell housing and the flywheel is accessable.
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

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    Senior Member flynryan's Avatar
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    Going to p/u the boat next week and bring it home. Hopefully my buddies cherry picker is tall enough. Thanks for the help

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    Senior Member Delemorte's Avatar
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    just yank the motor. Unless your drive line disconnects easily then it seams like you would waste more time tyring to avoid pulling the motor then actually pulling it.

    I yanked mine two weeks ago to replace the flex plate. I started around 9AM and was done by 4PM. I did all the work my self, made several trips to the parts store all around town and had a long easy lunch and took lots of brakes. Its not rocket science and it brought the engine high enough to make the work on it real easy..


    Something else to think about. If your missing teeth on your Flywheel/flexplate, then what condition is your starter in? Dont want to waste all that effort on a flywheel to leave a jacked up starter.


    My thread on the experience.

    http://www.performanceboats.com//showthread.php?t=34613
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    the ensueing fire would likely be extinguished by the sinking however

  10. #9
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    Post help (advice) just found out flyweel or flexplat has teeth missing

    Any body out the I got to pull my motor to change my fly weel or flexplat
    any advice would help I got a sb 350 to a panther jet drive
    im good with the motor lil confuzed on how it breaks free
    from the jet.thx jetboat for life
    Last edited by citykid; 05-02-2011 at 10:57 AM.

  11. #10
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    Post great advise pulled my flex plat in two hours not hard at all.

    Prob now is my flexpate is toe up.I wonderd why its sounded bad every now and again when I started it it sounded like hell.some one sugested putting a fly weel on in stead..?thinker stronger mabe my starter wont eat my flexplate.note I tryed shims before but every now and again it sound like he'll please help.new flyweel or flexplate.going to the lake next Thursday.great timing.

  12. #11
    old HB member. 4604me's Avatar
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    citykid, read threads above !!
    just a half turn before it breaks.

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    Default great advise pulled my flex plate off in two hours not hard at all.

    Prob now is my flexpate is toe up.I wonderd why its sounded bad every now and again when I started it it sounded like hell.some one sugested putting a fly weel on in stead..?thinker stronger mabe my starter wont eat my flyweel?note I tryed shims before but every now and again it sound like hell.wonder why my flexplate is missing abunch of teeth too.please help.new flyweel or flexplate.going to the lake next Thursday.great timing.

  14. #13
    Senior Member gregb's Avatar
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    Citykid, you should start your own thread on flywheel vs flexplate. At any rate, if you change from one to the other you will need a new PTO (the part that the driveshaft bolts too) as they are different, the flexplate version is thicker than the flywheel version. If you shimmed the starter and couldn't get it right it's possible the bushing in the nose of the starter is worn, I think I'd replace both pieces, starter and flexplate. And do yourself a favor, buy an original GM flexplate, or get an SFI approved one, those aftermarket replacement ones like pioneer sells work well in a car, but without a converter bolted to them for stability I think they flex too much.

  15. #14
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    Thanks for the advise.before the prob started I used shims and then bought a new starter it was good for a wile with the new starter then just took a crap pulled the flexplate it was toe up.missing half of some of the teeth in different places figured a flyweelin wont flex and strip my teeth.

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