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    • Cummins Marine Forum Topics
    • northern lights oil leak

      This topic has 3 replies, has 2 voices, and was last updated byTom Gaddis 4 years ago

      June 3, 2019 at 3:47 pm NL 10kW model M843JK. Had a few drips near electrical end first. Worsened after oil change then seemed to stop. Changed out exhaust elbow and when running to check after that found this dripping. Thoughts?

      Started by: Tom Gaddis in: General Discussion

      3 Replies
      September 16, 2019 at 7:51 am Decided to remove some oil to get level back to closer to low mark on stick. Leak stopped, gen running fine and also on close inspection of stick found someone prior had scratched a faint mark not midway between full and low but closer to low mark so suspect this was seen by a prior owner. Thanks for help and glad this was all it was. Tom

      Last Post by: Tom Gaddis posted: 4 years ago

    • alternator output qsm-11

      This topic has 7 replies, has 3 voices, and was last updated byRob Schepis 7 years ago

      November 13, 2016 at 10:48 am Had alternator (delco 22si) stop putting out volts so removed and had it rebuilt. Installed it today (added new belt) and now its putting out 14.50 volts at idle. Drops to 14.35 at 1800rpm. I thought this alternator was regulated at 14.2? Is this enough voltage to damage batteries? Not a big deal and run it for awhile or pull it off again and take back to alternator shop? Engine is 535hp QSM-11 with 3,000 hrs. thanks, tom

      Started by: Tom Gaddis in: General Discussion

      7 Replies
      November 15, 2016 at 9:07 pm Did you check with the battery manufacturer? Ā I did some more reading on this and found on Optima’s website that alternator charging max voltage is 15.0 volts…

      Last Post by: Rob Schepis posted: 7 years ago

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