Cummins 4BT high idle????

[Paul Ordetx]

Hello Guys,<br />My 4BT was actually a 4BTA that someone deleted the after cooler and recalibrated the Bosch high pressure pump. That last view weeks when I go to just start and run my engines to exercise them, I noticed my port engine warming up quicker and today I realized it was idling at 1200 rpm’s. My starboard engine idles at 800rpms. I was curious if this could be a caused by a build up of some type, since I have only been idling the engine for the last 9 months. Any suggestions welcome. She is headed for a 7 1/2 trip tomorrow that will give me the chance to open her up for a while, so hopefully this will correct the issue.

Thanks,

Paul

Topic

[Tony Athens]

4BTA Issues

Post very good pictures of the engine–all of it–especially the area on and around  the injection pump and all modified plumbing

[Author]

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