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    oil pressure bost

    1042193 i have a 258 cubic engine 90 yj with 145,000 miles on it . Is their an easy way to bost the oil pressure? reads about 25 psi 30 weight motor oil when hot.[addsig]
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    jeep parts

    90000 I just came across a pretty good deal. Atleast I thought it was. I traded a chevy 400 small block for two CJ7's. One is road worthy and the other is for parts. My questions are: (1)the parts jeep has a 4 cyl and a 4-speed trans, while the good one has a 6 cyl and a 3-speed trans...
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    4.2 engine with 4.0 head

    125000 I am not sure if I heard this right but the other day on TRUCKS they put a 4.0 head on 4.2. Did I hear the guy right or did I miss something? If thats the case I have a 4.0 motor from a 93 cherokee. Is there anything that has to be done to the head first.
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    overhaul 4.2 motor

    1040085 i have a 90 4.2 motor, and i'm thinking of overhauling it. has anyone overhaul the motor while it was still in the jeep? any problems in doing it this way? bob [addsig]
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    rattle 90 yj auto 258 in

    1040355 can anyone help me. i hear a rattle when i start up , for few seconds when it's cold. also when i'm at very low speed 5mph light load, thier's this rattle comming from the engine. i have 145,000 miles on it, could it be my bearings? the jeep had been in storage for 3 years with the same...
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    4.0 cylinder head on a 4.2 motor will this work?

    1041262 I have a chance to get a 4.0 cylinder head. does anybody know of the alternations needed in order to put it on a 91 4.2 motor?[addsig]
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