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    • Cummins 5.9 QSB engine temps

      This topic has 7 replies, has 5 voices, and was last updated byJoe Williams 5 years ago

      July 5, 2018 at 7:28 am Hi – I have a 2007 Sea Ray 360 Sedan bridge with Cummins 5.9 QSB engines w 700 hours. At running rpm’s the engine temps are very close – 183 vs. 179, the manifold temps are off by about 10 degrees and the oil cooler has been off by 143 vs. 123. Should all the readings match, or can there normally be differences? Could I have cooling issues on the engine with the higher readings? Thanks for any feedback.

      Started by: Joe Williams in: Cummins Marine Engines

      7 Replies
      July 18, 2018 at 10:08 am Thanks. Will measure them with the laser. May also switch the sensors and see if the temps flip accordingly.

      Last Post by: Joe Williams posted: 5 years ago

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