Results 1 to 3 of 3

Thread: Oil pump questions

  1. #1
    Bulltear forum member Cook
    Join Date
    Mar 2006
    Location
    Englewood, Colorado
    Posts
    23

    Oil pump questions

    I've been chasing down an issue with my CJ losing oil pressure on steep climbs. I was chatting with a buddy of mine yesterday regarding this issue. Oil pressure is not a problem. It maintains 25 PSI hot at idle and 50 PSI at higher RPM. We got on the subject of clearances in the pump itself. I did put new gears in it about three years ago, and really didn't notice anything that made me suspicious of a problem. Oil pressure was good. If there was a problem with clearances, what should I expect to see? My little pea brain tells me that oil pressure would suffer from clearances out of spec. But, how would that effect the suction ability of the pump? Again, being it is a positive displacement pump, my little brain tells me as long as the suction side is air tight and the pickup submerged in oil, it will suck oil into the pump. Thoughts?
    Silver CJ

  2. #2
    Thank you from BT ULTIMUS MAXIMUS STATUS tufcj's Avatar
    Join Date
    Apr 2004
    Location
    Watkins, CO
    Posts
    2,852
    Probably not a pump problem, but a pickup problem. I would suggest an oil pan with a bigger sump (maybe Canton), or modify your pan with some baffles in the bottom. On a steep climb, the oil runs away from the pickup. My CJ did the same thing. I found a pan that was built for AMC state patrol cars that had factory baffles. They're pretty rare too.

    Bob
    tufcj
    1969 AMX
    1967 Rambler Rogue

    If you need a tool and don't buy it...
    you'll eventually pay for it...
    and not have it.
    Henry Ford

  3. #3
    Thank you from BT ULTIMUS MAXIMUS STATUS tufcj's Avatar
    Join Date
    Apr 2004
    Location
    Watkins, CO
    Posts
    2,852
    Probably not a pump problem, but a pickup problem. I would suggest an oil pan with a bigger sump (maybe Canton), or modify your pan with some baffles in the bottom. On a steep climb, the oil runs away from the pickup. My CJ did the same thing. I found a pan that was built for AMC state patrol cars that had factory baffles. They're pretty rare too.

    Bob
    tufcj
    1969 AMX
    1967 Rambler Rogue

    If you need a tool and don't buy it...
    you'll eventually pay for it...
    and not have it.
    Henry Ford

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Bulltear Ad