Camshaft failure Cummins isx15

[Rawze]

Maybe find out why are the rockers got chewed up?..

If they have more than a million+ on them ok.. but otherwise... something caused it.

#1 cause = Neglect of the crank case filter.. and allowing crank case fumes to build up in the engine and starving the top end.

#2 cause = some fool not doing oil changes based on fuel mileage and going too long between changes. Oil changes should be based on this chart...
http://rawze.com/forums/showthread.php?t...9#pid76569

#3 cause.. some fool using synthetic oil in the engine .. and then not doing oil changes but every 28- 30k mile or more intervals.. or relying like an idiot on oil sampling and bypass filters garbage that these engine killing XM radio shows try to tell people to do.

#4 cause .. excessive blo-by and the crank case circuit cannot keep up with the fumes building up any more... allowing pressure to build inside engine, starving the top end of oil.

#5 ... no one ever adjusting the overhead valves every 2 years or 250k miles like they should... and the rockers are riding the cams all the time.


take your pick.