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Oil bath and other maintenance

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Angelofbrz
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Tractors Owned: (2) 1952 Farmall Cubs
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Oil bath and other maintenance

Postby Angelofbrz » Mon Aug 24, 2020 12:45 pm

Decided to drain the tank and take it off today because I had to polarize the generator. While I had it off I took the oil bath and intake parts off to soak in fuel for a day. I also cleaned my fuel sediment bowl and added a fuel filter (not one for fuel injection). While the hood and tank are off what else would be quick and easy to do? Anyone that could tell me how to check/add oil to the fan hub I would appreciate it. This Cub seems to have been taken well care of. Another thing is if you pull on the choke lever it opens the choke so can that somehow be put on wrong? It seems to want to run best with the choke almost closed so I’m going to need to figure the carb issues out. It will start up and run well but bogs down if I try to drive it.
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Angelo Fabrizi



(2) 1952 Farmall Cubs

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Waif
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Tractors Owned: 48 Farmall Cub "Seen Yore Dobbin"
53 F-Cub W/Loader.
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Location: Michigan

Re: Oil bath and other maintenance

Postby Waif » Mon Aug 24, 2020 2:10 pm

Angelofbrz wrote:Decided to drain the tank and take it off today because I had to polarize the generator. While I had it off I took the oil bath and intake parts off to soak in fuel for a day. I also cleaned my fuel sediment bowl and added a fuel filter (not one for fuel injection). While the hood and tank are off what else would be quick and easy to do? Anyone that could tell me how to check/add oil to the fan hub I would appreciate it. This Cub seems to have been taken well care of. Another thing is if you pull on the choke lever it opens the choke so can that somehow be put on wrong? It seems to want to run best with the choke almost closed so I’m going to need to figure the carb issues out. It will start up and run well but bogs down if I try to drive it.



Manual research will show you oil the fan hub. Turn till screw faces you. Remove , fill till it runs out. Turn hole towards ground to drain excess. Turn back towards you and replace screw.

Your filter looks small for a gravity feed system. That can cause fuel starvation.
Also guarantee your fuel line is not near the engine manifold. Or rubbing somewhere. Or subject to much heat.
I used reinforced pieces of hose cut a couple inches long ,split on one side to cover rubber line where it touches anything. Allowing best gravity drop for fuel to flow.

Your carb is a subject in itself. Again , the manual is the best answer. Every time it is removed you change it's condition.
Adjusting linkage to governor follows. As well as your air mix screw.

Angelofbrz
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Re: Oil bath and other maintenance

Postby Angelofbrz » Mon Aug 24, 2020 2:25 pm

What size fuel filter would you recommend? I put it on while I was draining the tank to compare flow with and without it and it drained into the bucket the same on and off.
Angelo Fabrizi



(2) 1952 Farmall Cubs

Waif
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53 F-Cub W/Loader.
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Re: Oil bath and other maintenance

Postby Waif » Mon Aug 24, 2020 4:44 pm

My filter is about twice the size of yours.( I'm not bragging....L.o.l.. ) I told the auto parts guy I needed a big enough filter to gravity feed a Cub..
He is not unfamiliar with tractors or I'd have given more details.

It's hard to watch the filter when operating the tractor under heavy load. But I get air ,or restricted fuel sometimes still.
Last time working hard it sputtered briefly. Recovered when I let up on it a little and the tractors tongue wasn't hangin out as far.

Your picture shows gas flowing out of the hose. It could stream better. Check your tanks exit hole for debris (inside tank) toward your sediment bowl. And be sure your tanks vent is working. Sediment/fuel bowl shut off valve position ect..

Angelofbrz
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Re: Oil bath and other maintenance

Postby Angelofbrz » Mon Aug 24, 2020 6:04 pm

I will be curious how it flows because those pictures are prior to me cleaning things and cleaning the sediment bowl. I’m pretty new to these so it might need and I may just get a bigger one. We’ll see once she’s put back together and I fire it up. I did not take the whole assembly off the bottom of the tank. Was worried about trashing that screen because I don’t have another one at the moment.
Angelo Fabrizi



(2) 1952 Farmall Cubs

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Glen
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Re: Oil bath and other maintenance

Postby Glen » Mon Aug 24, 2020 6:21 pm

Hi,
Below is a page from the 1955 Cub operator's manual telling how to oil the fan hub.
I think I posted the manual for you before.

http://farmallcub.com/rudi_cub/www.clea ... age-26.jpg

The oil could have been in fan hubs of some Cubs for a long time.
I would fill it like the manual says, then before draining the excess out, put in the screw, and turn the engine over 10 times or so, that mixes the new oil with the oil in the hub.
Then drain the excess.
You can repeat that if the drained out oil looks old.

It sounds like the lever on the carburetor that the choke rod connects on is in the wrong position.
The lever has to face mostly down.
Below is a pic from TM Tractor of the lever. It is on the engine side of the carburetor.
It has a screw to hold it in position. The screw needs to be tight, be sure the arm doesn't just turn on the shaft and not move the choke plate.
Below is a pic of the choke rod position, it should be just above the Touch Control tubes, and not rub on the tubes. If the rod is too low, put in more bend at the bend in the pic, I think that will raise up the rod at the tubes.
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Cub carb.jpg
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Peter Person
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Re: Oil bath and other maintenance

Postby Peter Person » Mon Aug 24, 2020 6:25 pm

If the inside of your tank is clean, you don't need an inline fuel filter. The fine mesh screen in the sediment filter will do the job just fine. My son just went through the process of diagnosing the sudden quitting of his Cub Loboy. He has issues with his generator, but more importantly the inline filter was impeding the flow of fuel causing air pockets to develop.
Since you're new to Cubs, do yourself a favor and read through the Owners Manual, available under the Quick Links tab at the top left of the web page. There are a lot of little things that can bite you if you don't pay attention to them.
1957 Farmall Cub "Emory", Fast-Hitch, L-F194 Plow & Colter, L-38 Disc Harrow, Cub-54A Blade, Cub-22 Sickle Bar Mower, IH 100 Blade

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Glen
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Re: Oil bath and other maintenance

Postby Glen » Mon Aug 24, 2020 6:37 pm

The carburetor could need the main jet cleaned, it is the 6 sided brass colored part low on the side of the IH carb.
Below is a pic from TM Tractor of it. The jet screws out of the carb.
Use a small wire and clean it, like the 2nd pic shows. Wash it out after using the wire.

The gasket on the jet may not seal well if it is old, and you reuse it. If it leaks, you can try a thin layer of sealer on it.
Or TM Tractor has a new gasket.
Tighten the jet gently, they can break from tightening them too hard.

The inline gas filter is not a necessity, like Peter said above, if the gas tank is clean.

TM Tractor has a new gas strainer gasket, and screen, if you need them.
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Cub jet.jpg

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Re: Oil bath and other maintenance

Postby Stevetractor » Mon Aug 24, 2020 7:08 pm

Agree with Peter on not needing inline filter. A good clean tank, good screen in sediment bowl, and proper steel line works great. Also the steel line is much safer. No melting or chafing, like could happen with rubber.

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Bill Hudson
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Re: Oil bath and other maintenance

Postby Bill Hudson » Mon Aug 24, 2020 7:27 pm

Angelofbrz wrote:What size fuel filter would you recommend? I put it on while I was draining the tank to compare flow with and without it and it drained into the bucket the same on and off.


I have used Gary Boutwell's inline fuel filter modification http://farmallcub.com/phpBB2/viewtopic.php?f=139&t=38266 for several years on many Cubs with no fuel starvation problems from lack of flow. If the filter does become plugged because it is catching 'stuff' simply remove it, spray with some carb cleaner and reinstall and go about your business. Works excellent!!

If you really want to add another layer of filtration protection, try this in-tank sediment bowl modification. http://farmallcub.com/phpBB2/viewtopic.php?f=139&t=98978

Bill
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Angelofbrz
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Re: Oil bath and other maintenance

Postby Angelofbrz » Mon Aug 24, 2020 8:00 pm

Thanks all. I can always count on good advice here.
Angelo Fabrizi



(2) 1952 Farmall Cubs

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Peter Person
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Re: Oil bath and other maintenance

Postby Peter Person » Mon Aug 24, 2020 8:17 pm

Angelo,
You can always reach out to Cecil, 45 minutes up the road in Oxford, NY. He's a Cub guru! :hattip:
His CubFest Northeast was cancelled this year due to COVID-19, but put Columbus Day weekend on your calendar for next year....if it's still called Columbus Day. :roll:
1957 Farmall Cub "Emory", Fast-Hitch, L-F194 Plow & Colter, L-38 Disc Harrow, Cub-54A Blade, Cub-22 Sickle Bar Mower, IH 100 Blade

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Re: Oil bath and other maintenance

Postby Stanton » Tue Aug 25, 2020 6:29 am

Angelofbrz wrote:...While the hood and tank are off what else would be quick and easy to do?..


Taking Glen's approach, grab your Cub Owner's Manual. There's a whole section in there dedicated to lubrication. Since the hood is off...

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Re: Oil bath and other maintenance

Postby ajhbike » Tue Aug 25, 2020 6:53 am

Get rid of the cheap fuel filters...I had one in my 3020 and it was worthless because not only did I not see fuel going through the paper but it was bypassing and starving the engine. I spent $10 or so on a good one and there is plenty of filtering protection and good flow. Also, if you are tempted to get an in line fuel shut off, get a good one. The cheap ones will eventually let the handle turn but the ball in the line will not move and it will confound you

Angelofbrz
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Re: Oil bath and other maintenance

Postby Angelofbrz » Tue Aug 25, 2020 9:27 am

I just took it off for now. After I cleaned stuff up and put the tank back on and turned the gas on I didn’t see anything floating around in the sediment bowl. Instead of risking starving it for fuel I’ll let it be. Next time I’m out I will get a beaded fuel line since my rubber one is cracked in places. I’m going to go back to the manual and try adjusting the governor next. It’s got full throttle which seems like it’s not running at 1800rms, no mid range, and then throttled down it just dies.
Angelo Fabrizi



(2) 1952 Farmall Cubs


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