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Stuck ring in a newly rebuilt Cummins Big Cam
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NTM Farms
Posted 1/9/2024 09:37 (#10564747)
Subject: Stuck ring in a newly rebuilt Cummins Big Cam


Bloomfield MO
Without dropping the oil pan and pushing the rod/piston, out the top, is there a way to remedy a stuck ring? Excessive fuel and smoke was noticed at startup, with fuel seeping around exhaust manifold. Removed turbo and manifold, started engine and definite white smoke from #2. So, idea is broke injector o ring, stuck injector or loss of compression. Pulled valve cover and rocker box, removed #2 injector and o rings are good. Injectors were all exchanged at a reputable pump shop very recently, as well. Gonna have injector tested today but my gut tells me low compression. That’s the whole story.
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