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    • Cummins Marine Forum Topics
    • Code 559 low fuel pressure – accelerating 1 2

      This topic has 29 replies, has 8 voices, and was last updated byFernando Perez 8 months ago

      September 18, 2018 at 5:01 pm Hello, Ive been trying to solve the 559 low fuel pressure alarm for some time now with no results. Right now it only activates when power is put to plane and when WOT. Boat has a pair of 5.9 QSB 355 hp 650 hrs 2007 Here a list of things done with no sucess in order: 1)Replaced racor. (Issue improved but still present) 2)Replaced engine fuel filter and vacum gauge on racor) 3)Replaced pressure sensor on fuel rail. 4)Replaced fuel transfer pump …

      Started by: Fernando Perez in: Cummins Marine Engines

      29 Replies
      August 26, 2023 at 1:11 pm Look for the ecm and find the lines. Dont have pictures, the code can be many other things. . Good luck.Ā 

      Last Post by: Fernando Perez posted: 8 months ago

    • Stb RPM Gauge erratic – oil consumption port

      This topic has 5 replies, has 3 voices, and was last updated byMike Uliasz 3 years ago

      March 1, 2021 at 6:58 pm Need help, just purchased a tiara 35 Open with dual 370 6bta. Stb RPM gauge is dead some times and erratic other times. The boat came with single lever sync, I can see both mechanical rpm cables go the the sync box, boat has after market alternator regulator. Any pointer on where to start. Also, previous care taker says the port engine is consuming oil, a mechanic had ā€œrepairedā€ turbo seals as they thought it was dripping oil into the exhaust. …

      Started by: Fernando Perez in: Cummins Marine Engines

      5 Replies
      April 12, 2021 at 6:13 pm Tony, Same issue and engines, just port tach. Similar boat, Pursuit. Just replaced the alternator but it did not fix the tach. Would work after planning at 2000 to 2200 and be fine, than sometimes work at idle when hot. Sounds like time to replace the magnetic pickup? This looks like the link https://www.sbmar.com/articles/install-magnetic-pickup-drive-tachometer/ Thanks

      Last Post by: Mike Uliasz posted: 3 years ago

    • ZF 800 V1 low oil pressure at idle

      This topic has 2 replies, has 3 voices, and was last updated byTony Athens 4 years ago

      December 8, 2019 at 7:20 pm Hi Tomy, I bought a 2000 yr boat with tween cummins 6bta 370 & zf 800 v1 trans. Both engines have only 355hrs. Port trans oil pressure is 75 psi at idle / neutral, if accelerated the psi goes to 150, when shifting it goes from 75 to 150 and then to 225 when accelerated (runs good with no slipping). You can barely notice when shifting forward and feel nothing when shifting reverse, even though it does turn the prop in reverse. Stb tran idle…

      Started by: Fernando Perez in: Marine Transmissions

      2 Replies
      December 9, 2019 at 6:39 pm Look at this graph and see if you are close to the spec.. Use an ACCURATE liquid filled 0-400 or 0-600 PSI gauge to really see where you are.. Until you do that we are all just guessing. Tony

      Last Post by: Tony Athens posted: 4 years ago

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Viewing 4 topics - 1 through 4 (of 4 total)