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Old 10-20-2013, 09:44 PM   #1
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HEUI oil leak

RV Service Reviews

If you go to the RV Service review link posted above you will read about our experience with a HEUI oil leak on the high pressure side of the injector system. Was told this is a common CAT 3126 problem. It can be a safety issue as if the line breaks completely it can spray oil in a hot engine compartment.
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Old 10-21-2013, 03:25 PM   #2
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I just got through changing the fitting O rings on the up dated steel tube fittings, 3 1/2 hours, with compressor in place , not a job for the faint of heart , or anyone who has trouble hanging head first in the engine bay.
At 800PSI oil pressure out of the HEUI pump , I would say to anyone who finds a flex hose from the pump to the head, change it before it fails.
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