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    • Cummins Marine Forum Topics
    • QCS load at idle

      This topic has 7 replies, has 3 voices, and was last updated byJerry White 2 years ago

      May 1, 2021 at 5:57 pm Just wondering what others are seeing for engine load at idle? Went to look at an 8.3 QSC today, was running a bit rough at lower RPM, at idl in neutral load was 24-26% As the engine rpm was increased in neutral the engine smoothed out and load decreased as throttle position increased. Have a good video of this this but couldn’t figure out how to load it onto forum. Thanks, JW

      Started by: Jerry White in: Cummins Marine Engines

      7 Replies
      May 5, 2021 at 8:51 am few more pics

      Last Post by: Jerry White posted: 2 years ago

    • hydraulic PTO on ZF-63A

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

      March 5, 2019 at 5:17 am I am interested in mounting a small hydraulic pump on the back of a ZF-63 gear, never seen a PTO on these gears and curious if it can be done. Also interested in the maximum power one could draw from a PTO on a ZF 63. Thanks, JW

      Started by: Jerry White in: Marine Transmissions

      3 Replies
      March 8, 2019 at 7:58 am Yes, 1:1 and rotates CCW looking at the PTO, meaning you need a CW pump. Remember, it’s a live PTO so if you got that direction, your system must be designed to accommodate that. 8 GPM at idle speeds is a VERY BIG pump for an SAE A pad.. 8 GPM at 1200 RPM ( where most pumps are rated), may be doable. It’s $700 kit, but looks like something that should be more like 50% of that.. . Tony

      Last Post by: Tony Athens posted: 5 years ago

    • external alarm buzzer for analog panel

      This topic has 6 replies, has 4 voices, and was last updated byJerry White 5 years ago

      May 22, 2018 at 6:31 am I have an analog alarm panel from a 8.3 that the buzzer has failed on, i replaced the board with one from a spare motor and all is well. My question is could i solder a couple pigtails onto the board with the bad buzzer and connect a remote piezo buzzer that would be located in area that was easier to hear if an alarm is present? Fellow running the boat is about half deaf and can’t hear the alarms when engine is over an idle. Not sure wh…

      Started by: Jerry White in: Instrumentation & Electronics

      6 Replies
      June 10, 2018 at 3:30 am As an update I re-installed the alarm circuit board and it works great, though i had to try two different buzzers. The first unit would not work at the lower voltage (9.8volts), the second unit tried, https://www.amazon.com/gp/product/B00HR6P9QU/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 worked great and will wake the dead. A side note is that if anyone is suffering with low oil pressure alarms when engine is pulled back to an idle, which …

      Last Post by: Jerry White posted: 5 years ago

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