Why so many CR piston failures?
06-04-2008, 06:54 PM
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Why so many CR piston failures?
Why are there so many piston/ ring failures in the CR engines moded or not?
I have two core engines that i have been parting out and both failed in the same way, piston rings braking and scaring up the cylinder walls. I wana finish builing up my engine but id like to see whats the main problem, the rings?
I have two core engines that i have been parting out and both failed in the same way, piston rings braking and scaring up the cylinder walls. I wana finish builing up my engine but id like to see whats the main problem, the rings?
06-05-2008, 07:12 AM
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IMO, it's not the pistons or rings. Cummins makes some very strong quality stuff as far as that goes.
I think it's too much timing, pressure or duration from boxes or stacking boxes creating ridiculous EGT's and/or stuck injectors. I've not heard of any stock trucks having a melt down issue.
Another cause may be overboost causing ridiculously high drive pressure. Stock turbos can only handle so much and many are pushing them to their limits not thinking the DP they're creating.
I think it's too much timing, pressure or duration from boxes or stacking boxes creating ridiculous EGT's and/or stuck injectors. I've not heard of any stock trucks having a melt down issue.
Another cause may be overboost causing ridiculously high drive pressure. Stock turbos can only handle so much and many are pushing them to their limits not thinking the DP they're creating.
06-05-2008, 07:42 AM
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IMO: Bad/leaky injectors due to sub-par filtration mixed with an extremely high presure common rail. Conversion over to ULSD and dirty/contamined underground fuel storage tanks. I'll trust my 7 into 2 micron filtration system before ANY gas station.
Programmers like the Smarty and others should be well within the limits of safe timing, duration, boost unless the end user is turning up the crank on the settings.
Programmers like the Smarty and others should be well within the limits of safe timing, duration, boost unless the end user is turning up the crank on the settings.
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