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Front main seal leak after replacement! Please Help!

Discussion in '4 Cylinder' started by mirtaco, Aug 3, 2025 at 3:13 PM.

  1. Aug 3, 2025 at 3:13 PM
    #1
    mirtaco

    #1
    mirtaco [OP] New Member

    Joined:
    Apr 30, 2025
    Member:
    #470338
    Messages:
    4
    Vehicle:
    1997 Tacoma 2.7L 4x4 Manual
    I replaced the front main seal and harmonic balancer (notice the old one had quite a worn groove) on my '97 2.7L 4x4 Taco, cleaned it up, and there is a still a leak coming from the crankshaft. I made sure to install the new seal flush with the timing cover, I lubed it up, I torqued the crankshaft bolt to 192 ft lbs. The crank snout didn't show any obvious signs of wear.

    The only other thing I can think of is that the Corteco harmonic balancer I got is not a good fit for the Taco? Does anyone have any other suggestions? Ive included a photo of the new leak.IMG_0107.HEIC.jpg
     
    mirtaco, Aug 3, 2025 at 3:13 PM
    #1

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