Originally Posted By: bullwinkle
Originally Posted By: jrmason
Originally Posted By: Motorking
Nothing to do with aftermarket controller, modded exhaust and hammering around towing 10,000lbs? Our lab can tell if the rubber in those parts came from one of our filters, hopefully he contacts them and follows instructions, no the legal experts in that forum. He filed a claim and FRAM is paying his his problem promptly, cant beat a company that stands behinds its products eh?
Deletes have proven very problematic on trucks no doubt, generally it is in the form of high cylinder pressures blowing head gaskets or the ever popular too much fuel not enough air flow method that results in a melted piston or valves. While his decision to not be able to watch his EGT's wasn't a smart one, I don't believe it had anything to do with this failure. Over fueling would have scorched the top of the piston yet it looks very clean. It very much points to a lack of oil cooling with that being said I don't have any opinions of the true cause. I would love to of seen the pieces that were inside that filter and know once and for all if it indeed was operator error but since he sent it away that will likely not happen.
I am in no way bashing your company and I hope you didn't take offense in me posting that link. There was no ill intentions involved. I thought it would be of interest to the members on an oil forum but perhaps I should have started a separate thread.
I'm with you-somehow the guy clogged the spray hole in the con rod & was getting NO oil to the wrist pin & cylinder wall area. If he really clogged a cooling nozzle, it didn't melt the piston, so he couldn't have gotten it that hot. How it didn't destroy the cylinder wall completely is a testament to how strong Cummins' blocks are-any passenger car engine would need bored & all new O/S pistons & rings for sure. Reading the thread, I can't help thinking that one of his OLD filter gaskets was stuck to the block (he said that had happened numerous times) & gotten into the filter adapter-just a case of VERY bad luck, it's hard to see up there from below unless your truck is on a lift with a strong light.
If it was an old gasket I thnk the worst that could happen is a NASTY oil leak (Cummins can clear 80+psi on a cold start up). Flow rates are 20.5 GPM @ 4200 rpm. This is oil pump rpm, not engine rpm (the oil pump gear is smaller than the crank gear so 4200rpm is actually 2800 engine rpm). I don't see how it really could possibly have gotten sucked "in" to the filter in any way. Especially if the flow of the filter goes down through the center of the filter and up and out through the outside? Maybe someone can confirm this?
It is genuinely puzzling how anything could have wound up inside that filter.