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Changing crank oil seal on 86 CUB (lots of pictures)
As I read some post on OCC today I realized I need to get my butt in gear and dig into this front oil seal change out on the new 86. I was dreading this as it was really dirty and oily. But I had the seal so here is the play by play.
****Word of warning: Usually these do not come apart this easy!***** The seal had actually come out of the engine and oil had been spewing forth for some time. Hoping that the engine is OK. It started and I pulled it in the more warm than outside garage. http://i233.photobucket.com/albums/e...6/DSC01106.jpg Here is where the action starts: Pull the grill and hood, four bolts. I cut the wire to the lights and will splice that back when the grill and hood go back on. http://i233.photobucket.com/albums/e...6/DSC01108.jpg First causality, took the adjusting bolt out of the S/G , lifted the arm coming from the block and the bolt in the pivot point snapped off flush with the block! http://i233.photobucket.com/albums/e...6/DSC01109.jpg Dip stick needed attention next as the handle was passing through the cap. Some well placed taps with a punch and this was now back to where it wont push through the cap. http://i233.photobucket.com/albums/e...6/DSC01110.jpg Fan belt has seen better days http://i233.photobucket.com/albums/e...6/DSC01111.jpg starting to remove grill and hood. http://i233.photobucket.com/albums/e...6/DSC01112.jpg http://i233.photobucket.com/albums/e...6/DSC01114.jpg blade and hood are going to have to be removed. Cut the light wire. http://i233.photobucket.com/albums/e...6/DSC01115.jpg Quick picture to make sure I get the blade back on in the correct location. Haven't had a wide frame before. http://i233.photobucket.com/albums/e...6/DSC01117.jpg continued in next posts |
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http://i233.photobucket.com/albums/e...6/DSC01118.jpg http://i233.photobucket.com/albums/e...6/DSC01119.jpg Power take off has small set screws at three locations with two screws at each location. http://i233.photobucket.com/albums/e...6/DSC01120.jpg PTO clutch is removed. http://i233.photobucket.com/albums/e...6/DSC01121.jpg http://i233.photobucket.com/albums/e...6/DSC01122.jpg Bearing for the PTO has a crack and piece missing. it will have to be replaced. http://i233.photobucket.com/albums/e...6/DSC01123.jpg http://i233.photobucket.com/albums/e...6/DSC01124.jpg The lock ring has one set screw. Take it all the way out. http://i233.photobucket.com/albums/e...6/DSC01125.jpg With a punch find the hole in the ring and tap clock wise when standing in front of the tractor. This ring is eccentric and will loosen to allow the bearing to be removed. http://i233.photobucket.com/albums/e...6/DSC01127.jpg A small two jaw puller will fit in the space to pull the bearing after the lock collar is loose. http://i233.photobucket.com/albums/e...6/DSC01128.jpg continued in next post. |
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Locking collar and bearing. http://i233.photobucket.com/albums/e...6/DSC01129.jpg Next is the set screws for the pulley. There is a set screw over the square key and another on the shaft. http://i233.photobucket.com/albums/e...6/DSC01130.jpg http://i233.photobucket.com/albums/e...6/DSC01131.jpg With the set screws removed I gently punch the key through the pulley. On some engines you may not have enough room to do this? http://i233.photobucket.com/albums/e...6/DSC01132.jpg http://i233.photobucket.com/albums/e...6/DSC01133.jpg A very gently taps and the pulley slides off the shaft. I did use some emery paper to clean the shaft. http://i233.photobucket.com/albums/e...6/DSC01135.jpg Ok we are almost ready for the seal. http://i233.photobucket.com/albums/e...6/DSC01136.jpg http://i233.photobucket.com/albums/e...6/DSC01137.jpg http://i233.photobucket.com/albums/e...6/DSC01138.jpg The seal was back in the engine for some reason? Turned the engine over and the air pressure pushed it back out and I used a knife to get it out. http://i233.photobucket.com/albums/e...6/DSC01140.jpg Continued in next post. |
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New seal had grease on the I.D. and is placed in the engine opening after cleaning out the engine and shaft. http://i233.photobucket.com/albums/e...6/DSC01141.jpg Speaking of cleaning this was really bad and I did do some clean up. after the seal was in place. I was soaking the grease with purple power as I worked on the seal installation. I used a heavy metal ring and light hammer to tap the seal flush with the outside of the block. http://i233.photobucket.com/albums/e...6/DSC01143.jpg Pulled the air cleaner and the filter was junk. http://i233.photobucket.com/albums/e...6/DSC01144.jpg some cleaning of the engine compartment. http://i233.photobucket.com/albums/e...6/DSC01145.jpg http://i233.photobucket.com/albums/e...6/DSC01146.jpg Wiped down most of the tractor to remove accumulated grease.No its not going to get restored just repaired and used. http://i233.photobucket.com/albums/e...6/DSC01147.jpg Time to get that broken bolt out of the block. at the pivot point for the S/G bracket. Center punched the broken part. Drilled small hole into the bolt. Good news the screw moved right in to the block. Got a small easy out in the hole and the broken part came right out. This entire engine area was wel lubricated! http://i233.photobucket.com/albums/e...6/DSC01148.jpg Enough cleaning , cant have it look too good. Starting to reassemble parts. http://i233.photobucket.com/albums/e...6/DSC01149.jpg New belt, filter and grade 5 bolt http://i233.photobucket.com/albums/e...6/DSC01150.jpg Pulley, key and set screws in place. belt and SG tightened. http://i233.photobucket.com/albums/e...6/DSC01152.jpg Continued in next post. |
This should be it:)
The steering wheel was loose right below the plastic wheel. I found that the plastic spacer had move up out of the sterring shaft housing. I was able to get this back down into the housing and it tightened up the steering wheel considerably. http://i233.photobucket.com/albums/e...6/DSC01153.jpg Changed the engine oil, added some fresh gas, and some sea foam to the tank, and fired it up. http://i233.photobucket.com/albums/e...6/DSC01154.jpg I will get a new bearing for the PTO next week and then re assemble the PTO and the grill. This tractor drives like it has power steering! I also like the long throw of the shifter. Going to see If I can find a good used seat to replace the crusty one too. No oil leaks, at least from that end of the tractor now, and its clean enough I could work with it again. Hope this helps someone that has not taken one of these apart before. Regards, Chris |
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? |
Awesome post. It cleaned up nicely. :beerchug: Glad the PTO basket and pulley came off so easy. I always end up drilling two holes 180 degrees from each other thru the pulley and basket to use a 2 point puller to get it off with. I never thought about driving the key back towards the engine.
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You've been busy, Chris! Thanks for the pics.
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Good work Chris.
You got lucky on the pto pulley and the broken off bolt. Now about that pto rod... |
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.
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good to go
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Nice write up Chris. I wish I'd had that keyway trick up my sleeve when I pulled my PTO.
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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.
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Good work Chris, that 86 cleaned up very well, that pto bolt looked like a pita but it wasn't.:beer2:
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Looking good Chris! Nice pics and writeup!:beerchug:
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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:
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What about the PTO rod? Did I miss something? Regards, Chris |
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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 |
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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 |
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DWayne, I was real lucky on how this basket came off. I like your idea to pull the basket. Do you have any pictures. I might need that trick sometime too. If the engine was out I think you could support the basket and drive the crank out with a air hammer too. Regards, Chris |
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Thanks! Not sure about the restraint. But after meeting with a lot of other cub folks and working on some big tractors too, and getting a little older. I seem to be content with getting them working and then enjoying them in their work clothes. This 86 is going to be nice to have around. I have a big tractor (AC WD) setting in the garage that has been apart for a year and a half. It takes a long time or lots of energy to restore them. The 147R and equipment that I worked on two years ago is still fresh in my mind. It would have been real easy to pull the engine in this 86. Then I would have had a bigger project! And more money required. This was about $30 and some time. I was glad things went that well. All the oil and protective layers of grease helped! Regards, Chris |
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Todd, I have learned from the master! Mr. ZIPPY1! Your restoration work has inspired many of us to get out there and dig in to save another Cub! I should get another one of those nice seats you recommended for this 86! By the way this seat pan is on the opposite way from a narrow frame:) Loving the retirement thing. I was telling Cheryl I don't miss driving in to Erie each weekday. Gives me another hour a day to be on the computer, or enjoying hobbies, or spending time with the grand daughters. But we (you and I) don't talk as much, since I used that 1/2 hour of drive time to chat on the phone with you once in a while. This 86 still needs some love and attention but can now function again. Regards, Chris |
That belt is 3/8" wide by 32 5/8" long. I always use some #2 Permatex on the outside of replacement seals.
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Well I missed the note on the premtex. Hope it holds as installed dry:) Great suggestion! Regards, Chris |
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One home made flywheel puller http://img.photobucket.com/albums/v7...h_DCP_4979.jpg Using longer bolts and two 1/2" sockets with longer bolts makes a great PTO bearing puller http://img.photobucket.com/albums/v7...DCP_4967-1.jpg Drill and tap 5/16"-18NC into the pulley and pull it off http://img.photobucket.com/albums/v7...h_DCP_5319.jpg Jeff |
Thanks for taking the time to upload the pictures and write up the post. Looks a lot better.
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Chris,
Super nice, original 86 you have there. Even the original muffler. Thanks for the pics and nice writeup. Just keep an eye on the seal. I, too like to put some sealer on the new seals when I put them in. If yours went in fairly snug, you should be good to go. Might wanna pull the breather and check/clean it as needed. Sometimes they plug and pressure will build up popping the seals out. Not saying that happened in your case, but an easy check. |
Jeff, and Josh,
Great ideas on the pulling of the bearing and the basket. And I will take off the breather and clean it. Will keep a eye on the seal. Thanks. Regards, Chris |
2 Attachment(s)
Here is a pic of the 128 starter pulley and pto basket I had to drill to pull.
Also the type of puller I used. Attachment 47379 Attachment 47380 |
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I was worried you would get bored with the retirement thing, but I'm thinking you'll keep busy fixing the little and big tractors. Don't forget, there's a few other ones out back!:beerchug: |
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DWayne, Now that i see your method it looks like a piece of cake to 'pull' one of these baskets. I bent the heck out of one trying to get it off. These should have came with pulling holes in them! Todd, Yea I keep walking past that 125 that I have stole parts off of and think it would make a nice mower. I did bring the 106 home a couple weeks ago. It was the first Cub I bought in about 84. Eric said it started with out being jumped. He had not started it in months. I found that the 86 needs clutch work. It doesn't fully disengage when pedal is depressed. Must need a spring that is bad? Pretty much normal wear and tear after years of work. I did get a price on the bearing and collar for the 86's PTO, in stock at local Cub Cadet dealer for $33. Regards, Chris |
Hey, Chris. Thanks for posting that series of pics. Once I get my 86 running I might have to to some PTO work to do, but I hope not. No idea what condition that or the clutch in in. Mine sat for a decade or more needing the exhaust valve replaced. I understand they did use it to mow before deciding to park it and have a friend work on it, work he didn't finish.
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Regards, Chris |
Chris, here's mine from an earlier post.
http://www.onlycubcadets.net/forum/s...796#post206796 Instead of being in my MIL's barn collecting dust and bird poop, it's in my barn collecting dust, not so much bird poop (the barn cat keeps that under control). Bill |
Bill,
The Cub looks like a keeper. I see you have some FORD's also. Regards, Chris |
Chris, yes, a couple of workers. The 9N is pretty much dedicated to pulling a manure spreader, have to empty it once or twice a week depending on how much the critters are inside. The 8N is the "do everything else" tractor... mowing and snow plowing mostly. I've had the 9N for about 22 yrs. now and it's getting tired but still starts and does the jobs I need. The other I got at a nearby sale about 4 yrs. ago, had the MIL take me over afterwards and she followed me home, not far but took about an hour.
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