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  1. M

    Fuel Pressure Problem 7.4 Mercruser MPI Bluewater

    I am having a problem with the fuel pressure rising above the 40 to 43 psi normal operating pressure Turn Key ON : Pump comes on Rail pressure goes to about 60 psi then falls to 41 psi Start Motor: Motor runs at idle to about 1200 rpm , when holding any rpm for a few min the pressure slowly...
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