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Ross Box lubrication

Discussion in 'Early CJ5 and CJ6 Tech' started by russo, Mar 29, 2013.

  1. Mar 29, 2013
    russo

    russo Hope is not a method

    Norris, Tennessee
    Joined:
    Oct 28, 2005
    Messages:
    498
    I have a slow leak in my Ross steering gear box. However, I do not want to pull it until I have a new sector shaft on hand to install while I have it out (been lookin' for a year). Thinking about runnin' 140wt instead of 90wt and see if the heavier oil leaks more slowly. Would this cause me other problems? Anyone ever run a heavier oil in the steering gear box?
     
  2. Mar 29, 2013
    CJ51962

    CJ51962 Member

    Seattle
    Joined:
    Jan 10, 2013
    Messages:
    244
    I use general purpose grease and just squirt it in the 1/8 npt fitting.
     
  3. Mar 29, 2013
    jim warren

    jim warren Member

    Joined:
    Mar 13, 2012
    Messages:
    144
    Carl Walck recommends using 90w. I had already greased the box post rebuild. I assumed grease was ok since there was a zerk installed. I believe that the consensus is to use 90w or something heavier. Sometime I will get the grease out.
     
  4. Mar 30, 2013
    Steve's 70-5

    Steve's 70-5 Member 2020 Sponsor

    Louisville, Ky
    Joined:
    Nov 12, 2009
    Messages:
    902
    Cold temps and heavy weight grease, think about that before doing any thing
     
  5. Mar 30, 2013
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    6,092
    The issue with grease is that it gets wiped off the sector shaft pins and that it doesn't get to the bushings. In both cases accelerated wear is the result.

    H.
     
  6. Mar 31, 2013
    russo

    russo Hope is not a method

    Norris, Tennessee
    Joined:
    Oct 28, 2005
    Messages:
    498
    Thanks All. Grease is a no no. I think I will run some 140 wt. oil for a while and see how it holds up. Cold is not an issue here.
     
  7. Apr 2, 2013
    WorkInProgress

    WorkInProgress Member

    Kennewick, Wa
    Joined:
    Jul 15, 2012
    Messages:
    946
    My 59 cj5 has had a grease zerk installed sometime in its history. My books all show to use sae 90 but its already too late for my current box. My box is sooooo worn that I get about 4-5 inches free play in the steering wheel measured from the outside of the steering wheel. I just picked up a NOS Crown made in the USA with a jeep dealership label on it from ebay about 2 weeks ago and once I get the rest of my steering parts on hand I will be going through it all at once soon. and just fyi I checked my tie rods and they all seem tight with no slop though they are all missing the rubber boots. best I can tell my bell crank is tight so im pretty sure 95% of my play is all in my box. all those years of only grease seems to have SEVERELY worn my box. and the funny thing is once I started putting SAE 90 in it I cant find any leaks at all from the box, so its like why did they install a zerk?
     
  8. Apr 3, 2013
    Jeepenstein

    Jeepenstein Me like Jeep..

    Middle TN
    Joined:
    Jun 15, 2003
    Messages:
    1,678
    I tried the grease thing too.. Bad JuJu.. The 140W worked better but still leaked, just not as fast...
     
  9. Apr 3, 2013
    lamar

    lamar Member

    greenville sc
    Joined:
    Jan 25, 2004
    Messages:
    327
    I use STP oil treatment or hi-tack oil treatment. Could probably use knuckle pudding too.
     
  10. Apr 3, 2013
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    6,092
    John Deere GL-0 cornhead grease or CV joint grease would be ok for the pins but I'm still not sure it would get into the bushings.

    H.
     
  11. Apr 3, 2013
    djbutler

    djbutler Sponsor

    Rio Linda CA
    Joined:
    Nov 5, 2007
    Messages:
    722
    A new bushing and sector shaft seal is fairly cheap and stopped the leak on mine. The PO had grease in it, I pulled it apart, changed only the sector shaft bushing and seal, put 90W back in it and it doesn't leak yet. Once the bushing gets worn again it will take out the seal I expect.

    Don
     
  12. Apr 3, 2013
    IA2003

    IA2003 Member

    Ewa Beach, HI
    Joined:
    Mar 17, 2011
    Messages:
    84
    I rebuilt my Ross box and put in 90w. Leaks like crazy. The entire box will leak onto the garage floor overnight. I have to refill it everytime I drive the Jeep. I wish grease worked. It would be less of a pain.
     
  13. Apr 3, 2013
    djbutler

    djbutler Sponsor

    Rio Linda CA
    Joined:
    Nov 5, 2007
    Messages:
    722
    If the box has the tube for the horn wire installed, and the sector shaft seal is good, and the sector shaft cover plate (right nomenclature?) gasket is in place with some sealant, these boxes shouldn't leak.
    I have heard of more than one Ross box that leaked from the horn wire tube not being properly seated in the casting. Without that there is a hole right out the bottom of the steering box case for lube to run out.

    Don
     

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