i had my p7100 pump calibrated and turned up a little, truck started running rough around 1000 rpm, put new injectors, lines, lift pump and it still did it. I took the pump back and found out it was 10cc to much on 2 of the plungers, and off course they said that couldn't wash a cylinder in 6 months of running it. so anyways i dont have the funding right now to re ring the motor but ive heard a rumour that if you use john deeres break in oil for now more than 5000kms it should re seat the rings. Is this possible? Is it worth a try? Will it be bad to run it another 6 months or so with 2 washed cylinders?

 

are you sure the rings need to be replaced? have you done a compression test?

 

yes i have had the head off and the 2 cylinders look glazed, the psi was about 55 lower than the average of the rest

 

I would think if you know there washed it wouldnt hurt to try the oil. the two hurt cylinders shouldnt affect the rest of the engine maybe run a little rough if there to bad.