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Transfer case leaking again. Should the shafts have any play?
- Thread starter Cltjones
- Start date
Is it full of gear lube? Hot is not very descriptive, can you get a temp with a heat gun?
A gear box such as this should run at less than 220 deg in my world. But that is to hot to touch for long.
Under about 180 deg, you risk not getting it warm enough to keep the moistier out of it.
Shaft play, there again can you measure it? A dial indicator would be the best way.
Generally gear boxes are shimmed on the case end plate to a preload on the tapered roller bearings. This eliminates play.
I know, not very helpful. You need to find the answers to these questions...
Regards, Kirk
A gear box such as this should run at less than 220 deg in my world. But that is to hot to touch for long.
Under about 180 deg, you risk not getting it warm enough to keep the moistier out of it.
Shaft play, there again can you measure it? A dial indicator would be the best way.
Generally gear boxes are shimmed on the case end plate to a preload on the tapered roller bearings. This eliminates play.
I know, not very helpful. You need to find the answers to these questions...
Regards, Kirk
Ok, I don't think it was more than 200 deg. but again did not try to keep my hand on it once I felt it. It is full of gear oil but is leaking it a few drops as it gets hot. Noticing it when you stop. It is the second seal put in in 30 miles of run time. The first one totally gave way in 5 miles. Thanks for the information. Cheers Gord
If the seal is failing that fast something is badly wrong....
Seals fail like that when the shaft is walking around. The end play is excessive, and with tapered roller bearings, this equates to side to side play as well.. .
If it were mine, especially were snow cats go, I think I would ground it until you get a chance to remove it and inspect the innards..
Not that bad of a job on a Tucker I would think. If you wreck the gears in the case, you might be surprised at the $$$ to repair.
Reagrds, Kirk
Seals fail like that when the shaft is walking around. The end play is excessive, and with tapered roller bearings, this equates to side to side play as well.. .
If it were mine, especially were snow cats go, I think I would ground it until you get a chance to remove it and inspect the innards..
Not that bad of a job on a Tucker I would think. If you wreck the gears in the case, you might be surprised at the $$$ to repair.
Reagrds, Kirk
This advice is spot-on!!
A great many of the parts on a Tucker are off-the-shelf parts that can be purchased from multiple sources. However, the transfer case is a proprietary Tucker component and they are hugely expensive. HUGELY! You really don't want to do any damage to yours. It's been a number of years since we did it, but we had to adjust the bearing end-play on one machine and I don't recall it being a particularly difficult task.
I would call Tucker to find out what the end play specification is (I don't remember what I was told several years ago (and I was too stupid to write it down)).
Over the last 40 years or so Tucker has changed the recommended transfer case fluid a few times. As I recall back in 1980 they recommended 10 weight motor oil. I had a conversation a few years ago with Jeff Godard at Tucker and he suggested Amsoil Severe Gear. It's not cheap, but if it protects the components in the transfer case, it's money well spent in my opinion.