Thrust bearing issue

Discussion in 'PSI Superchargers Tech Questions' started by B/AA813, Aug 8, 2008.

  1. B/AA813

    B/AA813 New Member

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    I`am running a 375 big Chevy blown on alky in comp eliminator.
    After 6 full passes i pulled the pan to check out the bearing situation.
    All bearings looked fine with the exeption of the rear thrust bearing. (only the
    rear thrust surface) As i`am using a glide, i was afraid to have to less converter clearance but the pump gear showed no unusual signs.
    Crank endplay is the 0.011 range.
    The rear thrust surface really looked bad so i`am urgently looking for a fix
    for the problem.

    Any ideas?

    thank you

    Bjoern
     
    #1
    B/AA813, Aug 8, 2008
  2. Mike Canter

    Mike Canter Top Dragster
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    What do you mean by it looked really bad? Was it chewed up or evenly worn a lot?
     
    #2
    Mike Canter, Aug 8, 2008
  3. Randy G.

    Randy G. Top Alcohol

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    Back a hundred years ago when we ran an automatic behind a Chevy we would bolt the tranny and converter to the engine and then make sure the crank still has plenty of thrust.
     
    #3
    Randy G., Aug 8, 2008
  4. Mike Canter

    Mike Canter Top Dragster
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    I believe their is a converter to flexplate measurement. If I remember correctly with the tranny bolted in place with the converter installed but the converter unbolted from the plate requires an 1/8" of play with the converter pushed all the way back.
     
    #4
    Mike Canter, Aug 8, 2008
  5. hotrod 316

    hotrod 316 New Member

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    converter ballooning
     
    #5
    hotrod 316, Aug 8, 2008
  6. B/AA813

    B/AA813 New Member

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    thrust bearing

    Converter balooning was also my first thought but the pump gear is looking
    not "unusual" and the thrust bearing surface is nearly down to the bare steel.

    Bjoern
     
    #6
    B/AA813, Aug 8, 2008
  7. jonimus333

    jonimus333 New Member

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    Bearing

    What are you running for a flex plate? If it is solid, it does not flex, We had that problem years ago with that. Just thought I would throw that out. Good luck Don
     
    #7
    jonimus333, Aug 9, 2008

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