Cummins Marine Diesel Repower Specialists › Forums › General Discussion › Popular Q engines— fuel pressure numbers

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  • May 12, 2022 at 6:49 am #131594

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    These are the proper running fuel pressure number measured on the filter head on the QSB 5.9, QSC and QSL 9..   I have not measured th 6.7 yet, but suspect it in the 50-100 PSI range. 

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    John, Rob Schepis
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