Forum Topics Started

Viewing 6 topics - 1 through 6 (of 6 total)
    • Cummins Marine Forum Topics
    • Accelerator/lever position sensor

      This topic has 3 replies, has 2 voices, and was last updated byTony Athens 1 year ago

      June 20, 2022 at 5:55 am Alarm Spn-1043.Ā  Ā Fmi- 3Ā  Ā running on plane and port engine loss power down to idleĀ  Ā cleared alarm and went back up to plane speed then loss power back to idle speed , See alarm is accelerator/lever sensor.Ā  ZF controls when got back to dockĀ  turned key switch on push ZF control up went to 100% on SMX displayĀ  Ā where is sensor located?

      Started by: Frank Thweatt Jr in: Cummins Marine Engines

      3 Replies
      June 24, 2022 at 7:01 pm We looked thru what you have posted –We think this is a ZF control issue.Ā  Study the attached

      Last Post by: Tony Athens posted: 1 year ago

    • Replaced DIesel View 1.0 with SMX J1939

      This topic has 17 replies, has 2 voices, and was last updated byCorey Schmidt 5 years ago

      June 22, 2018 at 9:55 pm Replaced single diesel view with double smx J1939 , removed sims and connected two key switches and 2 harnesses on engine , but both lift pumps start up on both engines when either starboard or port key is turned to first position , Thinking they should be separate since no connection between engines , maybe somebody can help me understand how they are still connected together. Thanks

      Started by: Frank Thweatt Jr in: Cummins Marine Engines

      17 Replies
      July 9, 2018 at 1:11 pm Hard to tell how you have it all hooked up but at its simplest… the signal lead needs to be connected to the wire in the back of the display and then the senders second lead much be grounded to a ground that is shared with the display ground… Only real way to make the test easy is to hook up a separate float sender to the leads and see the digital gauge go from 0% to 100%… once you have that, you’ll need to calibrate the …

      Last Post by: Corey Schmidt posted: 5 years ago

    • battery voltage high

      This topic has 2 replies, has 3 voices, and was last updated byTony Athens 5 years ago

      June 20, 2018 at 3:37 pm Qsb 5.9 – battery voltage would rise up to 17 volts at high rpm then drop back to 14 at idle rpm , could it be voltage regulator and it showing on both engine with separate gauges so thinking its not alternator, Looking for help for a place to start looking for problem. Thanks

      Started by: Frank Thweatt Jr in: Cummins Marine Engines

      2 Replies
      June 20, 2018 at 4:40 pm The symptom you describe would typically be related to the internal voltage regulator failing, inside the alternator. Simple to exchange alternators of take it off and have it repaired. Or do both, then you have a spare. But do follow Phil’s lead regardless.. Very important. Tony

      Last Post by: Tony Athens posted: 5 years ago

    • ZF85A-2.0 smoke & clutch smell

      This topic has 2 replies, has 2 voices, and was last updated byRob Schepis 5 years ago

      June 6, 2018 at 6:13 am zf clutch disk smoke and smell after going on sand bar and used props to push boat back in channel , on way back in notice little vibration sure its from bent blades , what does smoke and smell mean , really bad? I know the clutches slipped while turning props thru sand could fill it catch and slip, Any advice what to do at this point would be appreciated .

      Started by: Frank Thweatt Jr in: Cummins Marine Engines

      2 Replies
      June 8, 2018 at 5:30 am Is the oil dark/burnt? Is the shaft rotating in neutral?

      Last Post by: Rob Schepis posted: 5 years ago

    • QSB 5.9 POWER LOSS UNDER LOAD 1 2 3

      This topic has 55 replies, has 6 voices, and was last updated byRob Schepis 5 years ago

      November 5, 2017 at 9:03 pm QSB 5.9 TWIN ENGINE BOAT , STARBOARD LOSES POWER WHILE UNDERWAY RPM SURGES DOWN SOMETIMES 200 RPM OR MORE THEN SOMTIMES GOES BACK UP TO SAME RPM AS PORT NO SMOKE AT ALL , OWNED FOR 8 YEARS INSPECTED AFTERCOOLERS AND CLEANED GREASED ABOUT 3 YEARS AGO , TOOK PITCH OUT UNTIL RPM REACH 3050 LOADED AND BURNS 10 GALLON PER HOUR EACH AT 2450 RPM , DIDN’T START RIGHT OIL AND FUEL FILTER CHANGE IT DID STUMBLE LITTLE WHILE UNDER WAY COUPLR TIM…

      Started by: Frank Thweatt Jr in: Cummins Marine Engines

      55 Replies
      May 9, 2018 at 10:35 am Jeff, normal is different on each boat due to restrictions “built in” to the fuel system as in hose sizes, fitting sizes, fitting types, fitting count, dip-tube specs, etc. A new filter will give you a baseline. Could be zero, could be 2 or 3″hg. As to your recent incident – After your initial fuel starve a check of the gauge would have showed the drag pointer WAY up out of range… This YT clip should help vis…

      Last Post by: Rob Schepis posted: 5 years ago

  •  

Viewing 6 topics - 1 through 6 (of 6 total)