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New users Registered with a gmail address Attention All new Users 67-68 Deluxe Steering wheel recast Group buy

might a bad balancer cause rear main seal leak?

Discussion in 'Small Block Tech' started by 70sgeek, Jul 20, 2014.

  1. 70sgeek

    70sgeek drive it like a rental.

    I've replaced the rear main 2x now, both with TA neoprene and in each case, the motor began to leak again after approximately 300 miles. So recently I changed out my balancer (which I now believe was bad anyway due to a lower speed front end wobble which I first thought was a bad wheel balance but seems to have since disappeared).

    Is it possible if the balancer was bad, there could have excessive crank vibration against the seal which would have caused its failure?
     
    70sgeek, Jul 20, 2014
    #1
  2. alec296

    alec296 i need another buick

    its possible . but I would check flexplate/torque convertor for out of round,out of balance as that's closer to it. when you changed seal did you jack engine at all by balancer as crank could have warped from weight on it. what seal are you using? are you bottoming the side seals well?is your pcv system working correctly?
     
    alec296, Jul 20, 2014
    #2

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