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  1. L

    Failure New Jackshaft gear shattered, chain broken

    Well I finally got back to installing the 4.0 liter in the 02 explorer. I had turned it over by hand through 4 cycles with no binding or problems. Fired on first crank and then nothing. Pulled valve covers and the right bank cam was not turning. Pulled engine again. Found a chain link had come...
  2. L

    4.0 vin e pistons and rods

    Getting ready to reassemble doing timing chain replacement, rings and bearings. Rods were stamped 1 through 6 in that order on crank, some stamped and some needled numbers. Not stamped according to piston #ing . Now that the pistons are cleaned I see arrows and numbers on the piston tops...
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