Tom.JTC

Tom.JTC

Active Member
Just took delivery of my new cross drilled input gear from Ashcrofts. I bought it on the recommendation of it being a cheap(ish) temporary solution for giving a bit more life to my worn mainshaft. :eek:

Because of this, I have decided to reuse the bearings off the old shaft as they looked OK and the overhaul manual states that they can be swapped onto a new gear.

My question is, will I be able to swap the bearings over without having a proper bearing puller or press? Some Google searches have come up with a tiny bit of mixed info, some saying you can just lever them off carefully, other people recommending chisels. :eek: What about putting them back onto the new gear?

Any other tips regarding this? Thanks. :)
 
Just knock them off the old gear and fit to new gear, use whatever punch/chisel is the best fit, hard tools not the best as can chip the bearings but if you are careful no problems.


Lynall
 
knocking them off isnt really a good thing you can easily distort bearing running surface without looking damaged on the out side if you must use soft metal punch (brass)and put bearing together with both hands and rotate while pressing together to see if you have created high spot ,refit with a socket or similar using punch is not a good idea
 
Thanks guys. I think I will be tapping very gently and carefully tomorrow. I did find a small bearing puller earlier but I don't think it will be up to the job as I doubt it will be able to pull the bearing by the inner race.

Oh, what should I use to lubricate the bearings and shafts? Because it's the transfer box I was thinking EP90?
 
Hit the first problem - the bearing carrier plate behind the cover is sealed on with some kind of gasket sealant (red) and is stuck on fast. :mad:

What is the best way to break the seal to get if off?
 
cover hit downwards to sheer off using large screw driver etc ,at the top is a part were bearing plate sticks up above case hit that to open gap then use screw driver to open up all the way round ,will be a good fit and may ned careful levering, never refit with baskets if wasnt to start with and allways use a gasket if had one before as it would alter the preload on bearings
 
Thanks for your help again James. After having to give up earlier in the week I've finally got the bearing plate off thanks to removing the exhaust mid-section. Turns out it also has a paper gasket on that side, so good thing I bought two gaskets! Although it's one problem after the other, now the gear won't slide out! Transfer box and main box are both in neutral, handbrake is off with all four wheels on the ground, chocked. Can spin the gear freely but it doesn't budge if I try to pull it, tried spinning it while pulling by the dog gear, no luck. It's a suffix D 1.410 ratio transfer box so the gear should be easily removed?
 
yes 1.410 should pull off quite easily ,the intermediate gear oviously has 3 gears in 1 with input driving the center one and with the variable high gear been the one nearest the back , input gear has to slide past high gear,with the 1.2 the two gears are the same height so input wont pull past it 1.4 high gear is half a tooth smaller so gear will ,if yours is 1.4 and stuck try putting gear box in reverse and letting clutch up suddenly with foot hard on brakes to free worn splines then again in first gear
 
Got it off using a screwdriver just behind dog gear to act as a lever, was just held in by all the red paste from the ground up shaft.

Can't believe it's been managing to drive on what is left, looks like the splines sheared off long ago and it's just running on the very bases of them.

imag0713.jpg

imag0710o.jpg

imag0709x.jpg


Wondering if it's worth putting £66 worth of new input gear on to that! Although I don't have an option of a rebuild/Ashcroft box right now. :(
 
Thanks for all your help James. Stuck the old gear back in as new one wouldn't have made much of a difference and would be a bit of a waste. Will save it for when I can get a reconditioned box. Still drives though, just...for now.
 
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