Only Cub Cadets - Changing crank oil seal on 86 CUB (lots of pictures)

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Nice write up Chris. I wish I'd had that keyway trick up my sleeve when I pulled my PTO.

Retirement keeping you busy Chris?:biggrin2:
Great play by play, you have always had a knack for picture taking.
I'm thinking we need to start calling you Mr. Clean:bigthink: great improvement on the engine area.:beerchug:

Great post and a sweet looking repair. What else would we expect from a sugarmaker. As I recall the front seal on my command 20 was leaking and was loose in the hole enough to move in and out too. The new one fit kind of tight so I suspect when they wear down or wear out they not only get loose around the shaft but also loose on the outside too enough to allow it to move around. Thanks for the step by step illustrations. As most folks were not there when it was assembled things as simple as this can get really frustrating.

Good work Chris, that 86 cleaned up very well, that pto bolt looked like a pita but it wasn't.:beer2:

Looking good Chris! Nice pics and writeup!:beerchug:

Great step by step info and such personal restraint.I just can't tear into one like that and stop myself from doing at least a refurb.I need to learn to stop myself (lol).Thanks for all of the pic.:beerchug:

Quote:

Originally Posted by darkminion_17 (Post 243716)

Good work Chris.
You got lucky on the pto pulley and the broken off bolt.
Now about that pto rod...

Lew,
What about the PTO rod? Did I miss something?
Regards,
Chris

Quote:

Originally Posted by EricR (Post 243717)

Nice work there Mr Chris, how easy did the seal slide into the block? The reason I ask is all the engine guys around here put a little sealer around the out side edge to help hold it to the block! That's what we did when we replaced the seals on dad's twin 20 horse.

Eric,
The seal needed to be tapped in. Felt like a good fit? I did not think about any type of locking adhesive on the outside. That is a good suggestion. Well time will tell. I am not pulling it at this time:)
Regards,
Chris

Quote:

Originally Posted by Alvy (Post 243700)

Very informative step by step Chris. I always like as well I'm sure others do, this type of post because it helps people see exactly how to do something close up.

I'm wondering why your old seal had so much movement? I'm assuming the new one is ok and tighter? Btw, what length belt did you get?

Alvy,
The old seal came completely out of the block and was rattling around on the crank shaft. Lots of oil as you can see! Someone thought the seal came out due to overheating, like mouse nest in shroud? I did not take the fan shroud off but blew air into and around the cooling head fins. Looked clean and open. This tractor had set for a long time with a stuck clutch. When we brought it home it went to plowing a lot of snow right away. I think the seal just dried out over years and was pushed out when the engine got worked hard?

Belt size? Not sure Napa matched the numbers on the old belt and it fit. The number is in one of the pictures. Length usually is part of the number code.
Regards,
Chris