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  1. #1
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    Default Flexplate spacer?

    Can anyone help me with info on a flexplate spacer? My recently rebuilt/reco red 308 which I have just reinstalled in my HZ has a problem with the flexplate now being to close to engine causing it to hit starter motor.
    The only reasons I can come up with are I have misplaced a spacer or the new crank is shorter.

  2. #2
    Part of the furniture
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    Default

    HI
    Is there a chance its a poor quality non genuine flex plate or starter??. Can u wiggle the starter on the studs ??. Is the str gear/bendix retracting all the way ??. Is the flex plate around the right way??
    Cannot remember a spacer on my red v8 but some Jap cars have spacers .

  3. #3
    casual poster
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    Default

    Nope, never seen one, or aware of Holden ever using them.

    Are you using the proper starter motor bolts? The ones with the knurling to position the starter correctly?

    Have heard of plenty of issues with non-genuine components, flexplates and starters, not fitting properly.

    How about listing whats fitted, brands?

  4. #4
    Part of the furniture Deuce.'s Avatar
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    Default

    Whereabouts does it touch?
    Starter mounts flush with rear face of block except the pinion gear and it's little shield.
    Some models the starter was shimmed between mounting face and block to gap it away from the ring gear if that would help you?

  5. #5
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    Default

    Thanks for reply’s, everything is stock/original parts that were fitted before motor was reco’d including stock flexplate, Bosch starter with correct bolts etc.
    The flex plate is almost touching block, it was grinding on starter housing so I took some material off to clear it but now I have the problem that the starter gear is engaging fully into flexplate and that is with the starter pulled back and up as far as it will go.

    I don’t think flexplate is around wrong way as I could see definite marks where it contacted crank previously.

    It’s definitely not a case of shimming starter down, the flexplate and starter need to be further apart horizontally, so as the stock starter has little way of movement I am assuming I need to use a spacer.

    As previously mentioned I am quessing I’ve misplaced spacer or new crank is different?

  6. #6
    Do you ever leave?
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    Default

    do you have the old crank to compare,,, I am unaware of any spacing differences in them

  7. #7
    254RWHP boat anchor EVL253's Avatar
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    Default

    is the converter bolted to the flexplate? as that will pull them back some
    11 second E85 bottle fed boat anchor

  8. #8
    Part of the furniture Deuce.'s Avatar
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    Default

    So what crank are you using?
    I know they are drilled differently for converter snout or input shaft bush if manual. But bolt pattern and thickness should be the same. (I have auto behind manual crank, modded to work)

  9. #9
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    Yes converter is bolted up lol!

    Don’t have old crank and after the nightmare I had with the engine builder I wouldn’t even bother asking them about it!

    Thanks again for the replies, looks like I’ll have to make a spacer or buy an after market adjustable starter.

  10. #10
    casual poster
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    Default

    Flex plate could be bent. Have seen this on other GM engines.

  11. #11
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    Default

    Never have used or seen a spacer in all my years, as long as the raised sections off were the converter mounts on the flex plate is facing towards the rear of the car then all good.
    Id say a bent flex plate try turning the motor over by hand after removing the starter motor have a person look at the flex plate to see if it wobbles.

  12. #12
    254RWHP boat anchor EVL253's Avatar
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    have had a bent flexplate as well. it was hitting. another flexplate fixed it. dont take much to bend them if attached to a few hundred kg of engine and sat down on it etc
    11 second E85 bottle fed boat anchor

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