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Thread: 2.25L petrol engines - Rear main crank seal

  1. #1
    Join Date
    Nov 2010
    Location
    Canberra
    Posts
    280

    2.25L petrol engines - Rear main crank seal

    Hi all, Just wondering from the more experienced, how long does a replaced rear crank oil seal take before it starts to leak again?

    seems common they leak oil from there but i wonder how many kms before i should start putting the cardboard under the vehicle to protect the concrete?

  2. #2
    Join Date
    Mar 2008
    Location
    darwin, nt
    Posts
    532
    It varies, but the one thing that will make it leak sooner is wear in the main bearings. A grooved crank seal surface will also leak after replacing the seal.

    Sorry I don't have better news, or easy solutions.

    Dan.
    69 2A 88" pet4 (in disguise), 68 2B FC pet6 (resting quietly), plus others.
    dan

    1969 2a blue swb - daily driver
    1974 3 yellow trayback
    1968 2b forward control

    "Free advice is worth the price you pay," - me, just about every day.

  3. #3
    Join Date
    Nov 2010
    Location
    Canberra
    Posts
    280

    Rear crank seal

    Thanks for that. Hopefully Ill get a few years leak free out of it.

  4. #4
    Join Date
    Jan 1970
    Location
    Central West NSW
    Posts
    18,800
    Can't help except to comment that mine does not leak - and presumably the rear main seal was replaced when the engine was overhauled some time before I got the vehicle eighteen years ago. (There are, or have been) a few other leaks, but not that one!)

    John
    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

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