RIP CM2250, 2013, 800,000km 20,000 hrs
05-04-2022, (Subject: RIP CM2250, 2013, 800,000km 20,000 hrs ) 
Post: #69
RE: RIP CM2250, 2013, 800,000km 20,000 hrs
(05-04-2022 )Hermjeji Wrote:  FYI, the third fuel pump head from Cummins, also started leaking from the head. Pressure was maintained this time on the test, but have just replaced it for the 4th time in ~3 weeks.


that does not sound normal at all.

maybe your high pressure relief valve has failed in the shut position and it is allowing spikes with over-pressures?.

also need to ensure it passes an injector leak test with flying colors. if not then it could be combustion gasses back-feeding into the rail and causing excess fuel pressures. - just another theory.


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 Thanks given by: Hermjeji


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RE: RIP CM2250, 2013, 800,000km 20,000 hrs - Rawze - 05-04-2022



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