49 cub restoration project

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Spencer
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49 cub restoration project

Postby Spencer » Tue Oct 16, 2018 7:02 pm

Hi I recently started restoring a 49 cub that belonged to my great grandfather. I’m 13 and I’m restoring it for a school project. My dad ( who has posted on this website under the name cjack) has been helping me but the school prefers if I have a mentor who is not family. Any possible mentor suggestions or tips regarding this project would be appreciated. I live in Burlington Ontario.

The engine is completely seized. I have split the tractor and taken off the engine block already. I am now working on disassembling the block.
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Rick Spivey
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Re: 49 cub restoration project

Postby Rick Spivey » Tue Oct 16, 2018 8:08 pm

What requirements are there of the mentor? Do they need to live close enough to see the project in person, or could they be a long distance mentor?
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Re: 49 cub restoration project

Postby Eugene » Tue Oct 16, 2018 8:27 pm

Local farmers are usually excellent mechanics, one or more may be willing to help. There may be a mechanic who is willing to help.

Any Cub specific questions your mentor may have, can and will be answered on this forum.
I have an excuse. CRS.

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Re: 49 cub restoration project

Postby Crimson Tim » Tue Oct 16, 2018 9:12 pm

And welcome aboard!
You probably already know this if your dad has been here awhile, but once you make a couple of posts to the site, you’ll have access to all kinds of manuals and specifications under “Quick Links” at the top left of the page.

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Glen
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Re: 49 cub restoration project

Postby Glen » Tue Oct 16, 2018 11:18 pm

Hi,
Below is the 1949 Cub owner's manual. The experts on here recommend reading it, it has much info about operation, maintenance, and lubrication. There is a table of contents on page 1.
It has pics of how the Cubs originally looked. Good luck with the Cub. :)

http://farmallcub.com/rudi_cub/www.clea ... index.html

The recommendation in it to use motor oil in the Touch Control was changed later, to use Case IH Hy-Tran fluid, Jim Becker has said on here before.

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IHCFan1950
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Re: 49 cub restoration project

Postby IHCFan1950 » Wed Oct 17, 2018 6:54 am

Welcome aboard! Glad to see a young man like you taking on something like this! Even better, as a school project! Looks like you have taken a good first step by removing the head off the engine. Others on here have suggested using various things, from Automatic Transmission fluid mixed with oil, to just straight penetrating oil like PB blaster or Kroil to unseize an engine. Personally, I would recommend a big can of Kroil that you could put down each of the cylinders. The stuff is expensive, but in my book, it is well worth the money. Great stuff! Be sure to read through the manual that Glen posted the link to in his post. Lots of good stuff on maintenance in there.
If you own 1 tractor you have a interest
If you own 2 tractors you have a hobby
If you own 3 tractors you have an addiction
Anything over that..well your incurable! :lol:

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Spencer
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Re: 49 cub restoration project

Postby Spencer » Thu Oct 18, 2018 1:56 pm

Thanks for responding everyone, we printed out the manual.the mentor can be long distance and I can have more than 1.we were soaking the cylinders with sea foam deep creep for a couple months but in a different thread some people advised my dad to remove the crank shaft before hammering them out.I’ll continue to post updates and questions as my project progresses. My next steps are removing the crankshaft pulley, the govenor,( which is stuck on) and the clutch plate.

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Re: 49 cub restoration project

Postby BullDAWG » Thu Oct 18, 2018 2:20 pm

Well if the mentors can be long distance then you can have tons as most here are well knowledged and willing to help any way we can.

And yes it would be best to remove the crank and use the he hardest block of hardwood on the Pistons. That way if it hits the cylinder wall it won't damage them but is still hard enough to take a smack from a sledgehammer as sometimes those frozen pistons can be really hard to get loose. After a few wacks if they don't budge you might want to try using heat. Don't melt em but get em red hot then try hitting em again. (Note have a 5 gallon bucket of water next to ya, as the block of wood may catch on fire)
Last edited by BullDAWG on Thu Oct 18, 2018 6:11 pm, edited 1 time in total.
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staninlowerAL
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Re: 49 cub restoration project

Postby staninlowerAL » Thu Oct 18, 2018 6:07 pm

The pistons need to come out the top of the block. Do you have the CS removed? After the CS is out of the way, you can drive the piston down enough to break the bond with the cylinder wall, then clean the cylinders with some sandpaper or hone, then lube the cleaned up cylinder walls, turn the block upside down and drive the pistons out from the bottom. Be sure to remove any ring grove at the top of the cylinders. You may damage some of them but if you do a bore during the rebuild you will need oversize pistons anyway.

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Re: 49 cub restoration project

Postby Spencer » Thu Oct 18, 2018 6:53 pm

Thanks for the tips, I just removed the clutch plate, flywheel and the govenor. I was wondering if this govenor is salvageable I cleaned it up a bit but it still needs a lot of work.
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BullDAWG
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Tractors Owned: 1950 Super A
1955 John Deere 60 (sold)
1950 Cub
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Tufline 5' disc (old heavy type)
1953+ A-295A 2 furrow SlatWing Plow Chief plow (SA)
1950 cub-193 1 furrow SWPC plow (cub)
5' home made bush hog mounts on drawbar
Circle of Safety: Y

Re: 49 cub restoration project

Postby BullDAWG » Thu Oct 18, 2018 7:40 pm

Main thing that wears out or breaks on gov is the spring, replace them along with any bearings that look bad and you should be ok.
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Glen
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Re: 49 cub restoration project

Postby Glen » Thu Oct 18, 2018 8:00 pm

Hi,
Check for wear at the pins that hold the weights on. They should be snug, but the weights move in and out freely. Wear in the pins and holes in the weights can make the governor work bad.

Clean the surface on the governor gear that the seal runs on, sand it so it is smooth, if needed, with fine sandpaper.
It might need a new oil seal at the governor gear, if the seal is old, or leaks.
TM Tractor at the bottom of the page has new seals. :)

Spencer
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Re: 49 cub restoration project

Postby Spencer » Sat Oct 20, 2018 6:41 am

Thanks for the advice.

Spencer
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Re: 49 cub restoration project

Postby Spencer » Sun Dec 16, 2018 1:54 pm

Hey everyone,I know I haven’t posted in a while, I’ve completely disassembled the engine and sent it too a machine shop. The 4th piston was very hard to get out I had too fill it with diesel and light it 5 or 6 times befor I could knock it out. I’m working on cleaning up governor, generator and other parts.the cylinders are pitted badly. Can I go to + .06 if machine shop says I need that? The manual says that you can only go up to +.04. If I’m replacing all the valves should I also replace the valve guides? Should I order a new oil seal even if it’s not leaking?
Thanks.

staninlowerAL
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Tractors Owned: Cubs: (3)'49's, (1)'52, (1)'57 IH Cub LoBoy w/FH, (1)'72 154 Number Series Loboy, '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76 Yanmar 1500, Sears Surburban's, MTD's, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: 49 cub restoration project

Postby staninlowerAL » Sun Dec 16, 2018 3:04 pm

Talk with the machine shop about boring and sleeve back to standard pistons. If you can handle the cost I recommend replacing all the internal parts that are worn, including seals, etc.


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