RCD front mag drive

Discussion in 'PSI Superchargers Tech Questions' started by 32 bantam, Jul 26, 2015.

  1. 32 bantam

    32 bantam Member

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    I have a RCD front mag drive. It is for the full length mag. MSD20.
    My question is ....How much should I be able to turn the rotor by hand? Mine has (on large cap) about 3/8" travel when hot. It tightens up to about 1/4" when cold. I checked the mag itself and no play. And checked the engine drive and no play. So it is the gear mesh........just wondering what is normal.
    Thanks......
    Steve
     
    #1
    32 bantam, Jul 26, 2015
  2. texas racer

    texas racer New Member

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    sounds like the ryflex square ring between the magnets and shaft..
     
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    texas racer, Jul 27, 2015
  3. 32 bantam

    32 bantam Member

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    FOUND the PROBLEM.........RCD sent out some of these drives with the wrong end cap. We took the drive apart and set the mag in and the bronze gear was 5/16 short of going all the way in. We machined 5/16 off and now it is fine. I have a call into RCD tech and still waiting for a call back. UGH.......
     
    #3
    32 bantam, Jul 27, 2015

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