Main, rod bearing and oil pump

[redbeard]

I have been thinking about the oil bypass valve for our 2250 that Cummins had us replace as a cure to the fuel pump problem. It is a one piece design with o'rings where you just remove the original piston and spring at the oil filter housing and insert.

Is it me or does it seem that it is way to small and fits extremely sloppy in the galley. Cummins said it is good to go, but I didn't trust it from day one.

I also suffer the low oil pressure and replaced mains and put 8 dimes in bypass. Engine has 197,000 miles, now I feel better that rod won't exit block and I picked up 8lbs. pressure when hot. Now 40- 37 is the new normal.