2350 Jake Solenoid

[Bigballercarhauler]

(02-23-2025 )Rawze Wrote:  could be...

this somewhat related info may also help...
http://rawze.com/forums/showthread.php?t...783#pid783

3-5 psi is significant...

== Was all OEM parts used ?. or aftermarket?.

== did someone verify ALL part#'s for each bearing as they came out of the bottom end?... cummins is known for using a single random alt. size bearings on the bottom end on occasion.,. then someone assuming all are the same, and are standard part#'s .. and then putting engine back together only to find out there is lees oil pressures.. and eventually ending up with a spun bearing or destroyed crank later on.
more related info: http://rawze.com/forums/showthread.php?t...0#pid81250

The bottom end is all Cummins. I asked them if they verified the bearings they said yes they did

I’m getting 20 psi at idle (725) and 35-36 going down the road at 1500. I noticed when I originally got it back it would sometimes fluctuate back to normal and run 38-40 where I’m used to seeing it pre overhaul. Are the orings causing the leak the ones on the bottom of the solenoid inside the manifold? Per quickserve it says to replace solenoid if orings are damaged. Are the orings unserviceable?