gochenour799
Member
- Joined
- Sep 1, 2010
- Messages
- 47
I bought a ranch king 25 HP 4x4 diesel tractor with a 72" finish mower to mow my yard with it had 70 hrs on it . It has a different style oil psi gauge on it than I am used to and I thought it was lying to me . So I put a autometer mechanical gauge on it. Here's my problem at start up it has 80 psi cold . The longer you mow the less oil psi I have 2 hrs in @ 2200 rpms I have 20 psi when I idle it down to shut it off I have 0 psi . I read about the bypass valve and adj. It . This only brought the cold psi up not the hot . I run rotella 15w40 and wix filters and change them often . I am thinking oil cooler maybe the next step ? Has anyone else had this happen ? I use the rule 10 psi for every 100 rpms is that too much for this application? it just worry me to idle it down to shut it off .