Last week i collapsed an oil filter the oil dropped to 20 -30 lbs 15psi @ 1200 & 30 @ 3,000 . I changed the filter and all was good. A week later and its back but the filters ok . I changed the filter, oil pump,-10 line frim miloden pump to pick-up , dropped the pan and cleaned and checked p/u .their was some debrie in the pan but i think its from when i had a valve spring break and chewed up the valve guide . ran a diiferent oil line and oil gauge no change.All the rods look good Any idea's

Remove and check the bypass valve in the pump cover, it should slide in and out by turning the cover up ad down. The valve and spring are mounted at the rear of the cover It is not uncommon for that to happen, especially after someting breaks like a valve spring Let us know what you find

did that also , when i bought the new pump i pulled the old check valve and spring and put the new ones in. the old by-pass slid right out . thanks for the input any other idea's

did that x 2. any other idea's

Yea ..

I just hope what happen to mine did not happen to yours. Mlne killed a roller lifter and some of it got passed the oil pump up to the rod bearings. But you could see where something had marked up the rotor in the oil pump.

IVE GOT SWIRL MARKS ON THE PUMP COVER WHERE THE PUMP ROTORS SPIN. MY MILODON PUMP COVER IS HARDENED TOO I COULDNT CLEAN IT UP WITH A FILE OR SANDPAPER. IM ALSO RUNNING A ROLLER CAM . THANKS FOR THE INFO IM GOING OUT TO CHECK NOW

Found it , just before i started it it backfired bigtime (dont ask) bent 2 pushrods and broke a roller lifter. It aint easy bring me!. 2 different problems wit h the same symptoms. THANKS again to all that helped