What I did this weekend: Tranny back in business - Cat Twenty Two

That $7 spring in the shifter interlock took quite a bit of disassembly to repair. Thankfully Cat still has the springs for sale. I bought and replaced both so I would not ever have to get into it this far for hopefully a long time.

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I had to remove the winch since I had to get into the bevel gear case to maneuver the pins that hold the shifter forks in place. Had to remove the fuel tank to get to the cover to access the front side of those pins. Had to drain coolant to remove the fuel tank (do you know why??) HA!

The interlock nubbins are press fit then staked in place. I had to discover this for myself. Ground off the staked part then pressed the plunger out. Repaired the fork hole where the plunger slides in and out, and had to build up one plunger where it wore instead of the hole it ran in. Added some weld metal to the pins to extend them back to original length, then peened the end that was staked. Pics show the peening.

Man it is a pain to get the forks and guides and brackets back in place with he bolts tight and locks bent over. Found out I could rotate it sideways and put one pin in the opposite fork so parts are aligned to tighten it up.

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Any way back in business!. Shifts like NEW! 😛arty:

I also worked a bit on my 5J installing new final drive seals. Glad these are still available too.

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Very nice project report. Thanks!
It's interesting how different designers build the same thing.

Sat under compression for a couple days. Good as new.

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I used 3bond to glue it in. Impervious to anything.

I realize that one things always leads to another on these old Cats but I am curious as to why you had to drain the coolant to remove the gas tank.

you removed the coolant to get the heat sending unit out right?

Yup! I did not want to leave the sending unit attached to the water neck and risk dropping the tank or otherwise yanking on the very fragile tube.

Quirks of working on old equipment.