Posted by Eric Bergstrom on September 24, 2008 at 08:14:02 from (68.115.89.201):
In Reply to: W4 rear axle seals posted by RVS on September 24, 2008 at 06:02:24:
Wow, that's a cool 4H project! My dad and I restored a W4 a couple years ago and had to do the same thing. It was easily the most difficult part of the project.
First we put the tractor on blocks, removed the rear wheels, and drained the rear end. Then we took off the PTO and disconnected the rear axles from the bull gears (it's just one bolt per axle). At that point we were down to the axels and cast iron hubs. They are HEAVY and I would advise using a cherry picker to move them.
We then heated and cooled the hub, used penetrating oil, and put it in a big press, but nothing would budge ours.
We ended up having to screw a bolt all the way into the end of the axle and pound on it with a sledge hammer. We dug a hole in the ground and put a railroad tie on either side of the hole so the hub could rest on it with the axle hanging down in the hole. We then pounded the axle through.
This system worked, but it was not ideal. 1.) The axles fought us the whole way 2.) You need to be accurate with your swings so you don't mark up the cast iron hub. 3.) It's difficult to find something to use as a punch once the end of the axle has moved down inside the hub. 4.) We made it injury free, but any time you're making that much metal collide, it can present safety issues. BE SURE to wear safety glasses, etc. if you attempt this.
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