1950 Farmall Cub Refresh

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tractorjunky
Posts: 42
Joined: Sat Feb 06, 2021 6:55 pm
Zip Code: 45036
Tractors Owned: 1939 JD L
1942 JD H
1949 JD M
1948 Farmall Cub
2, 1950 Farmall Cubs
Circle of Safety: Y
Location: SW Ohio

Re: 1950 Farmall Cub Refresh

Postby tractorjunky » Tue Jan 11, 2022 8:30 am

I wasn't able to get much time in the shop this weekend. But got enough to where I could get the hydraulic system reinstalled.

With everything painted, the original leather boots cleaned and new o-ring for the control valve, we are ready to go.
ready for reassembly.jpg
Ready for reassembly


First up was installing the new o-ring on the control valve and installing the control valve with the leather boot. I also installed the leather boot on the piston rod. Boots look pretty good for using the parts washer and then some dish soap for cleaning.
clean installed boots.jpg


Once I got the arms back on and everything connected again, I put the block back on the tractor.
installed block.jpg


With the pump rebuilt, painted and reinstalled,
installed pump.jpg


I reinstalled the tubes and the control linkage to the lever.
reinstalled system.jpg


I just need to add some hytran and the Hydraulic System is done.

Next up on the TO-DO list, fabricate a new bracket for the alternator. The bracket that came with it, had the alternator hitting the hood. At least they didn't cut the hood for clearance.

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Dale Finch
10+ Years
10+ Years
Posts: 6073
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: 1950 Farmall Cub Refresh

Postby Dale Finch » Tue Jan 11, 2022 8:56 am

After you fill the TC Block, leave the fill plug open. Since your piston is extended at this time, start the engine and operate the TC Lever several times to expell any air in the system. Then set the piston fully retracted and shut the engine down. NOW top off the block, if needed.
Dale Finch
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tractorjunky
Posts: 42
Joined: Sat Feb 06, 2021 6:55 pm
Zip Code: 45036
Tractors Owned: 1939 JD L
1942 JD H
1949 JD M
1948 Farmall Cub
2, 1950 Farmall Cubs
Circle of Safety: Y
Location: SW Ohio

Re: 1950 Farmall Cub Refresh

Postby tractorjunky » Tue Jan 18, 2022 8:21 am

This weekend I was able to fabricate a mounting bracket for the alternator. When I bought the tractor it was already converted to 12v. However the bracket that was installed holding the alternator allowed the alternator to hit the hood. Fortunately, they did not cut the hood. A few weeks ago I bought the NAPA 213-4011 SW alternator.

To get started, I needed to know where the edge of the hood is going to be. So I found a scrap piece of wood that conservatively represented the gap between hood hanger and the side of the hood.
hood gap check.jpg


With this, I used some welding magnets to hold the spacer on the radiator shields.
alternator space gauge.jpg


With a little trail fitting and a lot of double measuring, I ended up with this mounting bracket. I had to make the Aft end of the bracket a little thicker so the front end would clear the governor.
alternator mount.jpg

Due to the mounting bolts, I had to place one of the alternator lugs between the bolts. I will find some sort of spacer to fill the gap.

With the alternator mount installed, time for the tightening bracket. This was a little easier to figure out. I was able to cut the original bracket in two, then add a little extra material and put the two pieces at an angle relative to each other.
Alternator bracket.jpg


I will need to add a spacer on this bracket as well.
alternator bracket spacer.jpg


Once everything was done and bolted into place, I had the alternator mounted, using the belt that came with the tractor, NAPA 4L210 and having plenty of clearance to the hood.
alternator space gauge.jpg

tractorjunky
Posts: 42
Joined: Sat Feb 06, 2021 6:55 pm
Zip Code: 45036
Tractors Owned: 1939 JD L
1942 JD H
1949 JD M
1948 Farmall Cub
2, 1950 Farmall Cubs
Circle of Safety: Y
Location: SW Ohio

Re: 1950 Farmall Cub Refresh

Postby tractorjunky » Tue Jan 18, 2022 8:37 am

With the alternator bracket out of the way. It was time for the second tractor split. This time we will be taking the front axle and bolster off. This will allow better access to cleaning and painting the front of the engine.

We started off by taking the tie rods off and then dropping the axle.
Remove tie rods.jpg


Once the axle was off we removed the steering housing. This revealed the lovely grease that was used as the lubricant. I was not surprised to find this as there was a grease fitting installed on the fill port. The daughters will have fun cleaning this up.
steering grease.jpg


Now it was time for the bolster to come off.
bolster on bench.jpg


Now we have plenty of access to the front of the engine.
tractor spit again.jpg


When the outside temp gets above freezing again, we plan on flushing the engine's water jacket.

Before closing shop for the night, we thought we would chase some threads. Only one problem, there is not enough room to get a tap in the Air Cleaner mount holes with the engine's front coverplate installed. To solve this problem, I taught my daughter how to make a thread chaser by cutting a slot in the end of a bolt. Worked like a charm and the threads are now clean.
thread chasing air cleaner.jpg


We now have a pretty decent pile of parts that need cleaning, priming and painting. As far as I know, the only repairs that need to be made is removing 3 broken screws from the bolster that holds the dogleg panels and reworking/installing the radiator overflow tube. The steering housing will also receive all new gaskets and seals when we go back together.

With the tractor being split for the second time, it feels like we are over the hump and can see the end.

User avatar
Dale Finch
10+ Years
10+ Years
Posts: 6073
Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub #140966 "Bruno" with Woods 59 mower
'55 Cub #187541 "Betty" with Fast Hitch
'55 Cub #190482 "Ben" with Woods 42 mower
'55 Cub #191739 "Bertha" with Woods 42 mower
'56 Cub #194370 "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: 1950 Farmall Cub Refresh

Postby Dale Finch » Tue Jan 18, 2022 9:01 am

I have been following this thread since the beginning, but haven't gone back to review all the things you have already done. So if you already covered this, just ignore... :D

While you have the front off, you have access to the hard-to-access governor lever, so now is the time to ensure the spring is good (replace NOW if not), the lever moves freely, and there is no slop in the gov rockshaft or the linkage across to the carb rod. Oil the fan, too!

Being female myself, I just LOVE seeing your daughter's participating! Even if they never work on a project like this again in the future, the knowledge and self confidence acquired will always stay with them!
My congratulations to them!! (and you, too!) :hattip:
Dale Finch
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Gary Dotson
Team Cub Mentor
Team Cub Mentor
Posts: 4975
Joined: Thu Aug 03, 2006 6:20 am
Zip Code: 43358
Tractors Owned: 48 Cub Diesel (Cubota)
53 Cockshutt 20 restored (Shooter)
52 Cockshutt 20 unrestored
47 Leader "B" (Herckie)
49 Leader "D" (Princess)
49 Leader "D" very rough
48 Leader "D" unrestored
Kubota B6200E
Kubota B6200HST
Kubota B8200HST-D
Circle of Safety: Y
Location: OH West Mansfield

Re: 1950 Farmall Cub Refresh

Postby Gary Dotson » Tue Jan 18, 2022 9:12 am

Your alternator bracket looks very familiar, I’ve made several similar ones in the past. You might, slightly, increase the bends in your upper bracket, to eliminate the need for a spacer, there.

User avatar
Pap
501 Club
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Posts: 600
Joined: Mon Jun 07, 2021 8:43 pm
Zip Code: 38401
Tractors Owned: 1947 Cub ( Err Err )
I could not say tractor when I was 2 years old so I called it Err Err.

I loved this tractor then and I still love it now.
Circle of Safety: Y
Location: Columbia, Tennessee

Re: 1950 Farmall Cub Refresh

Postby Pap » Tue Jan 18, 2022 10:18 am

We love seeing your daughters helping out with your project. :hattip:
Are We Having Fun Yet ? :D
'47 cub ( Err Err )


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