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heavyquip

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  1. heavyquip
    Someone please help me . Have a etech 460 in a RD888SX dump truck . Lost two of the rockers , rollers got damaged so replaced a complete set of 12 , installed new Mack oil pump but have low oil pressure issues to the point that the ?Jake brake will not operate .Rod and main bearings look fine , new filters , fresh oil and still will not pass 20psi what could be my problem ?

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