Small block starter and flexplate issue

Discussion in 'Small Block Mopar Engine' started by Jax, Feb 13, 2018.

  1. Jax

    Jax Well-Known Member

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    Guys

    When installing the starter on the block, we tried the starter to verify everything was fine on the flexplate clearing the starter. But the starter engages the flexplate to start and then it kindly get stuck. But when trying to move the crank via the damper bolt it jumps back in.? Is this normal? Or are we just overtinking here? I have a video... of it but is too large to load it. Any way I can send the video?

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  2. MOPAROFFICIAL

    MOPAROFFICIAL Well-Known Member

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    What year trans and what year crankshaft?
    If you use an early torque converter "small snout" in later yr "large register" crankshaft ...any misalignment of the starter and the larger register can allow some cock eyed movement of convertor against the pump.

    Aside from that...1st loosen started bolt just a hair and try to get the solenoid gear to extend and mesh without starter motor engagement , then snug the bolts and try it.
    Looking at the pics, get it wired up too. Lol
     
    Last edited: Feb 13, 2018
  3. Jax

    Jax Well-Known Member

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    Is a small block stroker crank with a 904.
     
  4. MOPAROFFICIAL

    MOPAROFFICIAL Well-Known Member

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    I
    Internal balance or does it have weights welded onto the flex plate?
    I had a shop weld weight to the stock flex plate of a 360 to balance it....bolted it up to the 727, starter in....turn key and chunk...
    Looked and found the flex plate weight hitting the locating portion of the starter body that protrudes into the bellhousing.
    Check that too.
     
    Last edited: Feb 13, 2018
  5. Jax

    Jax Well-Known Member

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    W
    Would like to send you the video or on the forum. As far as I can see it is normal. But would like to confirm our thoughts.
    When the engine starts, does the motion of the flexplate push the starter back to normal position?
     
  6. Jax

    Jax Well-Known Member

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    I think this is the answer to my concern. Beacause the engine is not fire the speed of the flywheel is not greater than the starter motor and can't fully disengage..

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  7. 67Dart273

    67Dart273 Well-Known Member

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    No, the gear should pull back out, engine start, or not. If it appears to engage without binding, it might simply be something wrong in the starter itself. Have you tried to run the starter on the bench?
     
  8. gtsdude

    gtsdude Well-Known Member

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    Are you sure you have enough power to turn it over?