flywheel problems PLEASE HELP!
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flywheel problems PLEASE HELP!

  1. #1
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    Unhappy flywheel problems PLEASE HELP!

    so i had my engine rebuilt by dynoflo in Henderson Nevada let stat off by saying the owner Scott is an a**hole and once receives your money that's it doesnt care about you any more..and wont even answer a question..or phone calls.

    NOT HAPPY BEWARE OF DYNOFLO WISH I WOULD HAVE SEEN THE 25 PAGES OF OTHER COMPLAINTS FIRST ON RACINGJUNK.COM

    now here's my problem..

    i have a gen v 502 block that i had redone with a 540 eagle kit it was internally balanced dynoflo took my external flywheel and ground the weight off i put my starter in and am getting a constant grind tried shimming changing starters with no luck is it possible that when they took my weights off... they warped the flywheel?? even changed the ring gear on the flywheel..


    my starter engages but does not disengage?
    Affordable Plumbing
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  3. #2
    cfm
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    You sure it's your flywheel you got back ? Same tooth count ?

    You sure your starter is not the culprit ? Just because it worked last time before motor came out does not mean it is not an issue now. Around here, lots of starters 'go bad' while boat is layed up.

  4. #3
    Senior Member Widetrack's Avatar
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    Was the block line bored? If so how much? I have seen this before, some blocks and starters just don't match up and it is not because it is to close it is to far away from the flywheel! One way to test (and test only) add a washer or two to the outside hole tighten down good! Hit the key and listen to see if the sound is better or worse! If the starter engauges better then the surface on the starter has to be shaved off some! Good luck! WT


    SOMEONE SAID YOU CAN'T TAKE IT WITH YOU! SO,IM BURNING IT UP ONE GALLON AT A TIME!
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  6. #4
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    Your Flywheel is on backwards

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    Senior Member H20MOFO's Avatar
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    If it's a bottom mount starter , how does shimming it not work?? Pics??
    Another Hot Boat refugee

  8. #6
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    when i shim the starter it still sticks i have shimmed from .20 thousands at a time up to .100 thousands..... if i turn the engine over by hand just a hair the starter gear will retract the ring tooth count is 168 and i believe 11 on the starter the small starter with stagered bolts the ring gear was replaced also to see if this was my problem..with no change


    the only thing that is a virgin is my crankshaft could this be off? every thing else was there? i have tryed 3 new startes shimming them all should i replace my flywheel next?

    grinding when turning over even with the spark plugs out of the motor to help turn it over easier...
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  9. #7
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    Quote Originally Posted by jungledave View Post
    Your Flywheel is on backwards

    and no its not on backwards thanks
    Affordable Plumbing
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  10. #8
    Boat Nut sleekcrafter's Avatar
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    Starter Bendix is bad or sticking, could happen from long period of sitting. Is it possible the wiring is not quite right, and power is sneaking a circuit back to the starter solenoid?

  11. #9
    Distinguished Member David 519's Avatar
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    Quote Originally Posted by banshee100hp View Post
    when i shim the starter it still sticks i have shimmed from .20 thousands at a time up to .100 thousands..... if i turn the engine over by hand just a hair the starter gear will retract the ring tooth count is 168 and i believe 11 on the starter the small starter with stagered bolts the ring gear was replaced also to see if this was my problem..with no change


    the only thing that is a virgin is my crankshaft could this be off? every thing else was there? i have tryed 3 new startes shimming them all should i replace my flywheel next?

    grinding when turning over even with the spark plugs out of the motor to help turn it over easier...
    Put your plugs back in and try it.... Had the EXACT thing happen with a new engine. Wanted to spin it to get oil pressure after priming it with a drill. Starter wouldn't disengage. With the plugs out, the motor doesn't "kick back" enough to release the starter. The gear remains engaged due to friction on the flywheel.. Put the plugs back in, end of problem. Don't even ask how many hours I dicked with it before I figured it out
    OBTW, I bought a bare block from Dyno-Flow supposedly finish machined. Would have been a good deal on the block, but they focked up EVERY SINGLE machining operation they did. Was not even close... They'll never see another dime from me and I discourage anyone from using them.... so yea Scott/Dyno-Flo SUCKS!!!
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

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    E cmail Tom Johnson [email protected]. TCL performance a flwheel person, good guy Just helped me out a hole with a flywheel problem.

  13. #11
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    Default Wiring...

    Describe your wires going to the starter. How many? Where do they attach? Where do they come from?.............Just a thought about solenoids......Ray
    LOUD BOATS SAVE LIVES

  14. #12
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    Quote Originally Posted by banshee100hp View Post
    and no its not on backwards thanks
    Sorry I guess you are talking about a flywheel, not a flexplate, but the auto flexplates can be put on backwards since the bolt holes are symetrical.
    Last edited by jungledave; 02-19-2009 at 06:32 PM. Reason: bla

  15. #13
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    i will take pics this weekend and am working on it 2 so i have other options hopefully..thanks for all the info guys much help
    Affordable Plumbing
    Lake Havasu City, Arizona 86403
    (928) 230-1138

  16. #14
    Engine junkie
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    Problem is in your starter and it's shimming..................
    Is this the same starter and flywheel that was originally on the engine prior to the rebuild ?
    If so has the original shim set up been retained?

    You may or may not be able to access the ring gear depending on your engine mounting set up, but if you can here is what you want when it comes to shimming your starter.
    It sounds to me like the starter is shimmed to tight to the flywheel, A GM starter running on a 168 tooth ring gear likes roughly .025" backlash. To measure take a .025" feeler gauge and trim it to a width of .125" so you can slip it between the gears. Power the solenoid, but disconnect the power lead into the starter motor so only the solenoid activates, this will allow the starter to engage the ring gear with out rotating the engine.
    Shim the starter so a gear backlash of .025" is obtained, more shims increases backlash, .015" starter shim = about .003" increase in gear backlash at first and that interval increases as the starter moves away from the ring gear) reconnect the power to the starter motor and crank it over.

    A note about shimming, some use the 1/8" rod method, this is flawed as the valley between the teeth is irrelevant and unused, it is also a inconsistent dimension between manufacturers.

    Now crank it over and listen carefully, if it sounds right your done. If not add a shim and try again, if it's better try another until it sounds just right, home in by adding or subtracting shims. The reason your doing this is the ring gear teeth are not perfect, you will get tight spots and loose spots as the ring gear rotates so your looking for the happy medium and sweet spot.
    Hope this helps.
    SRP1
    Last edited by SRP1; 02-20-2009 at 08:42 PM.
    Life's journey is not to arrive at the grave safely in well preserved body, but rather to skid in sideways, totally worn out, shouting"....holy shit.... what a ride!"

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