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Prop shaft sliding yokes - greasing nipples?

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  • Prop shaft sliding yokes - greasing nipples?

    Hey all

    First time ever doing this, went and bought a couple of grease guns (Kincrome) with flexible hoses to grease the 6 nipples under the 120. The four U-joints were a breeze, nice popping sound after a couple of pumps and a tiny amount of grease oozing out the seals. The sliding yokes though wouldn't take hardly any grease. Hard to tell if any went in at all, after the first pump the grease just wouldn't go in, it just kept pumping around the nipple and not going in. No popping sounds, no grease oozing out any seals - just refusing to go into the nipple. I pulled one of the two nipples off and had a bit of a grease explosion so there was obviously pressure in there.

    Question is... Should I hear the grease pushing the air out of the sliding yoke seals? I've read before that sometimes these things need to be dismantled and cleaned good because they get full of crap.

    Thanks

    Brett

  • #2
    You musn't over grease these like the uni joints, because at the next speed hump you're going to pop some seals.

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    • #3
      Originally posted by amts View Post
      You musn't over grease these like the uni joints, because at the next speed hump you're going to pop some seals.
      Well then I might pull the nipples off in the morning and let that pressure out will that be enough or should I drive for a few km with the nipples out? How full should it be?

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      • #4
        Originally posted by pilgrim_traveller View Post
        Well then I might pull the nipples off in the morning and let that pressure out will that be enough or should I drive for a few km with the nipples out? How full should it be?
        Took them off and there was no explosion this morning, maybe whatever grease was in there gradually seeped through to wherever it needed to go. Went for a trip around the block and over some speedbumps with them off, came back, put them back on and gave them each 3 pumps of grease. Will put another pump or two in every 5000km now and hopefully that will keep it going strong!

        Brett.

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        • #5
          The rule of thumb is 2 pumps every 10,000km.

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