If you're going to tighten that nut, remember to go counterclockwise with it. I don't have the wrench that the books show, I use about a 3' prybar, poke it between two track pads and really lean on it using the pad as a fulcrum.
Thanks for the reply ol Grump, I was aware that the adjusting nut had to be turned counterclockwise to tighten the bearing. What I was wondering about was whether the retaining nut on the sprocket shaft came into play in this adjustment and whether the looseness of the sprocket has anything to do with the outer bearing adjustment?
As far as getting a 3 foot pry bar, the fit was just too TIGHT to fit in between the track pads. I went ahead and used a 3 foot bar with a small sledge hammer and tapped the adjusting nut 3 notches...I'll leave it at that and see if it does anything to stop the leak.
If anyone has any ideas I would be glad to hear them.
John
[quote="johnstone"]Thanks for the reply ol Grump, I was aware that the adjusting nut had to be turned counterclockwise to tighten the bearing. What I was wondering about was whether the retaining nut on the sprocket shaft came into play in this adjustment and whether the looseness of the sprocket has anything to do with the outer bearing adjustment?
As far as getting a 3 foot pry bar, the fit was just too TIGHT to fit in between the track pads. I went ahead and used a 3 foot bar with a small sledge hammer and tapped the adjusting nut 3 notches...I'll leave it at that and see if it does anything to stop the leak.
If anyone has any ideas I would be glad to hear them.
John[/quote]
Hi John, if you only managed to move it 3 notches then it sounds to be like the bearing pre-load was about OK. Isn't this leak more likely to be a worn out bellows seal? I be tempted to pull the outer bearing housing assembly off and take a look.
Though it's worth noting that I thought I had a bad bellows seal on my D4 but after I pulled it apart I discovered it was fine and the actual leak was via a cork gasket on that adjusting nut you just turned!
(Don't treat this as gospel as I'm just a beginner with Cats!)
Julian.
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