Hi all
Over the Christmas holidays I replaced the o rings crush washers on my om603s delivery valves, got the car started somewhat easily but, blue smoke way rough idle and last night I finally drove the car for more than a few minutes and it seemed to not have any power ran like dog doo doo. I had done a diesel purge a couple days ago and it seemed to help. But it’s running really bad now. The idle smooths out a little when warm.any Ideas about tests i could do to isolate which cylinder is messing up ? Any help greatly appreciated. Btw ran great before I messed with it.