Forum Topics Started

Viewing 3 topics - 1 through 3 (of 3 total)
    • Cummins Marine Forum Topics
    • QSC8.3 incorrect oil pressure

      This topic has 1 reply, has 2 voices, and was last updated byTony Athens 3 years ago

      June 12, 2020 at 9:06 pm My 2007 qsc8.3 490 w/smart craft oil pressure reading acts like a switch. It either reads zero when warm at idle or 69 psi above 1100 rpm. Sender is correct. I traced 3 wires to connector. ground is good. Voltage supply is good and reference varies as supposed to . So oil sensor and wiring doing what their supposed to up to the block. I really can’t arbitrarily change computer components to fix. Any known way to test? Manual oil gauge …

      Started by: David in: Instrumentation & Electronics

      1 Reply
      June 13, 2020 at 6:39 am Buy a new OP sender

      Last Post by: Tony Athens posted: 3 years ago

    • 2007 QSC 8.3 smart craft oil pressure

      This topic has 4 replies, has 3 voices, and was last updated bytombuskirk 4 years ago

      June 20, 2017 at 10:34 am Any help would be appreciated. 2007 qsc 8.3 . 1700 hrs. All was fine until on way home from fishing trip, low oil reassure alarm and low oil code went on and smart craft display said 0 pressure. I took off sender and installed pressure gauge. Pressure was 59 and warmed up at Idle was still in 30s. I purchased a sender locally. Now alarm off started cold but as engine warms alarm and low pressure code come back. Smartcraft reads 69 at anythin…

      Started by: David in: Cummins Marine Engines

      4 Replies
      August 16, 2019 at 8:45 am Iā€™m having the same issue with my 2007 QSC 8.3. Low oil pressure alert code 415 indicating 0.0 PSI. Towed into Shearwater, BC, pressure manually checked good (70 PSI within 5 seconds of engine start). Having sender unit that Coreyā€™s post indicates flown in today from Vancouver but based on this post and another, Iā€™m not sure this will fix problems. Mechanic here does not think this is a wiring issue, nor the low coolant sensor leaking issue, but…

      Last Post by: tombuskirk posted: 4 years ago

    • qsc 8.3 w/ ZF intermittent reverse

      This topic has 9 replies, has 4 voices, and was last updated byRobert Greig 5 years ago

      February 22, 2017 at 6:22 pm I would appreciate any help with this problem. IĀ have smart craft electronic controls.Ā  reverse does not initially always engage on port engine when control is put in reverse . If I shift from reverse back to Neutral a couple of times it works. Tried switching solenoids, no difference. If I turn manual override screw under solenoid cover always works.Ā Any tips would be helpful.

      Started by: David in: Marine Transmissions

      9 Replies
      September 9, 2018 at 7:02 pm Thanks Tony. I do plan to take it apart to get to a final resolution. Giving it a whack was the short term fix when offshore or backing down a fairway to dock. Iā€™ll get a better picture of the configuration on the transmission.

      Last Post by: Robert Greig posted: 5 years ago

  •  

Viewing 3 topics - 1 through 3 (of 3 total)