Question about 1998 Jeep Grand Cherokee

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98 Grand C jeep 4litre crankshaft end play

Trans is out and there is about quarter inch end play, damper to crank flange.Bellhousing bolts rubbing on cover, can the center main bearing with trust bearing be changed without pulling motor?

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  • mdcaron Feb 20, 2009

    thanks looks like Ineed a new crank and bearings

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  • Jeep Master
  • 6,982 Answers

Usually this can be done but I think that if you have wear on thrust faces, there is likely wear on support faces as well, Once you have the pan off, plastigage both rod and main bearings. if out of specs, you really should change all of them!! Make sure you torque everything properly and avoid getting oil on backs of bearings when installing... can lead to spun bearing.
good luck

Posted on Feb 18, 2009

  • Richard Scordino Feb 20, 2009

    You may be able to have crank re-ground and use "fat" bearings. Check with a good machinest...Some cranks are too thin and will go egg shaped on you if cut them. if you can, will save a few $. Or, depending upon how much wear you find, you may want to just get a short-block and be done with it. Then You will be fresh...new pistons CAM BEARINGS (which will also wear like rod and mains) etc.
    good luck


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Click over image for zoom...

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Fig. 1: View of the crankshaft position sensor and its location-1996 5.2L engine shown


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Fig. 2: View of the crankshaft position sensor and its location-1996 4.0L engine shown


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