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Front Main Oil Seal Replacement

Discussion in 'Early CJ5 and CJ6 Tech' started by gotime, May 5, 2017.

  1. May 5, 2017
    gotime

    gotime Sick with the car bug

    Minneapolis,...
    Joined:
    Oct 22, 2007
    Messages:
    247
    F134 Engine.

    So, mine is leaking some - just a tiny bit that sprays onto the fender. What's the best way to replace it? Are there any tricks to replacing it that will save me some time or pain?

    I searched and didn't see anything specific to the front main.

    Thanks,
    Jon
     
    gotime, May 5, 2017
    #1
  2. May 5, 2017
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,126
    There shouldn't be any oil spraying out- there's no pressure at the front seal which is on the timing gear cover, if it's actually shot it could be oil is getting flung off of the crank pulley.

    Or it could be a leak at the hose that feeds the oil filter if it's the driver side fender where you're seeing it.

    If it is the front seal pull the grill/rad off, remove the crank pulley and you'll be able to remove the cover (don't miss the four bolts coming up through the oil pan) & replace the seal.

    H.
     
    Howard Eisenhauer, May 5, 2017
    #2
  3. May 5, 2017
    gotime

    gotime Sick with the car bug

    Minneapolis,...
    Joined:
    Oct 22, 2007
    Messages:
    247
    Passenger side fender under the battery tray. It's a brand new seal and engine rebuild, but there is some oil coming from somewhere. I'm not running a filter or filter lines. They are plugged and not leaking. I read somewhere it was tough to get the front pulley back on without putting undue pressure on the crank shaft. Should I not worry about that?
     
    gotime, May 5, 2017
    #3
  4. May 5, 2017
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,126
    I've never had an issue with getting the pulley going on or off. :rolleyes:

    Any oil showing up on the bottom of the water pump? I f it's the pulley flinging oil I'd expect to see that.

    H.
     
    Howard Eisenhauer, May 5, 2017
    #4
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