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Technical Powerglide info

Discussion in 'The Hokey Ass Message Board' started by special-k, Oct 8, 2018.

  1. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    Hi l have a powerglide in a vintage Dirt Modified. Its a little newer than you guys like but I'm hoping you'll let it slide because of the trans year. Anyways it has a manual override on the vacuum regulator on the side. Trying to find out what the purpose is? Thanks for any tips. 20181008_155123.jpg
     
    chryslerfan55 likes this.
  2. saltflats
    Joined: Aug 14, 2007
    Posts: 10,927

    saltflats
    Member
    from Missouri

    That is a low bad apply, can be used for push starts.
     
  3. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    So it applies the low gear band mechanically? Does that mean l can take it off and put a block off plate on it without disturbing the rest of the tranny? We have a room issue and it takes up some room we could use. The car has a starter so it doesn't really need to be able to be push started.
     
    loudbang likes this.
  4. saltflats
    Joined: Aug 14, 2007
    Posts: 10,927

    saltflats
    Member
    from Missouri

    Do you have a torque converter?
    Is this a high gear only car?
     
    loudbang likes this.

  5. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 6,695

    56sedandelivery
    Member Emeritus

    DIRT cars can get away with not having a torque converter; they use a direct coupler from the engine to the trans in place of the converter. Some use a dummy converter, others a drive hub. Manual valve body, and a "valve" to open/release the band apply; sort of works like a clutch. I have't seen a lever connected directly to the low apply servo; is it hand or foot operated? The ones I've seen use a remote, foot operated, pedal that's connected to a valve to route trans fluid. I am Butch/56sedandelivery.
     
    Last edited: Oct 9, 2018
    loudbang likes this.
  6. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    No this one has the ball valve with no torque converter and all the gears work. Just wasn't sure what this lever did. PO said it was for cautions. There was a language barrier between us so it seems like he meant if it stalled and wouldn't refire you could use this and be push started
     
    loudbang likes this.
  7. saltflats
    Joined: Aug 14, 2007
    Posts: 10,927

    saltflats
    Member
    from Missouri

    If you need the servo cover, send me a PM with your address. I can send one your way.
     
  8. studebakerjoe
    Joined: Jul 7, 2015
    Posts: 811

    studebakerjoe
    Member

    If he was using it for cautions seems like he had it so they could ride around track at slower speed while caution flag was out.
     
  9. 41rodderz
    Joined: Sep 27, 2010
    Posts: 5,580

    41rodderz
    Member
    from Oregon

    What track(s) are you racing at ?
     
  10. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    I finally managed to track down the original transmission builder. It is for bump starting and it'll be ok to take it off and put a stock cover back on it. The spring and piston should be inside and intact. Thanks for the tips.
     
  11. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    We haven't raced anywhere yet. I'm in southern Ontario Canada. So l'm a little ways from Oregon lol
     
  12. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    Thanks for the offer. I'll be digging around here to find one.
     
  13. special-k
    Joined: Mar 24, 2009
    Posts: 45

    special-k
    Member

    Managed to find one. I thought it would be stamped steel. Turned out to be a nicely cast one. Should be good now. It was with a mid 60's 6 cylinder engine. The belhousing has a couple good side inspection holes along the side. Is that common?
     
  14. saltflats
    Joined: Aug 14, 2007
    Posts: 10,927

    saltflats
    Member
    from Missouri

    Yes on a 6 cylinder with the air cooled converter.
     

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