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flushing crankcase
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- Posts: 10
- Joined: Wed Nov 18, 2020 3:24 pm
- Zip Code: 40047
flushing crankcase
first time user here. Have a 1950 Cub hasn't been used/started in several years. Been stored in shed. brought home and NO spark. Cleaned the points and set gap. Now have spark and starts and runs pretty good. Drained oil from crankcase, black and thick. Removed oil filter, nasty. I've been reading on here today about cleaning crankcase with a FLUSH KIT. Question: where does one find this kit and brand name? I talked to Service man at case ih and he said to use kerosene with oil. You guys say no because of no oil in kerosene. Question : what oil weight do you recommend for these older tractors? Thanks for all the info. Pembroke
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- 5+ Years
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- Tractors Owned: 1949 farmall cub(building from parts) 1950 farmall cub
1971 David Brown 880 selectamatic - Circle of Safety: Y
Re: flushing crankcase
I think IH recommended non detergent 30 weight for most temperatures but I run rotella 15-40 in mine. As far as oil goes you will get a lot of different responses. I run 15-40 Rotella in all my tractors and trucks mainly so I don’t have to keep multiple kinds and weights around. As far as flushing the block I used a pressure washer through the side of the block after removing the lower radiator hose and the elbow it’s attached to that bolts to the block. I also flushed the radiator and block by running a mix of water and arm and hammer washing powder for an hour or two in the cooling system. I think if you search for block flushing tool on the forum you will see that you can make one with some copper tube and a fitting to connect it to a garden hose
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- Team Cub Mentor
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Re: flushing crankcase
My opinion. I would change the oil filter and clean the oil filter drain tube. Then do a couple of rapid engine oil changes.
Oil of your choice. Like Mht I use the same multi-weight oil, different brand name, in all my tractors and machines. Much simpler that way.
Change the oil filter after the second oil change.
Oil of your choice. Like Mht I use the same multi-weight oil, different brand name, in all my tractors and machines. Much simpler that way.
Change the oil filter after the second oil change.
I have an excuse. CRS.
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- 10+ Years
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Re: flushing crankcase
Old school mechanic told me to change oil and filter but use 1 quart of ATF in place of a quart of oil. Run till time for next oil change and use detergent oil from now on.
- Glen
- 10+ Years
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- Joined: Mon Mar 19, 2012 7:33 pm
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- Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
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- Location: Wa.
Re: flushing crankcase
Hi,
The Cub operator's manual can help you learn about maintenance that the Cub needs.
Below is the 1950 Cub operator's manual. The experts on here recommend people read it. It has lots of info about operation, maintenance, and lubrication. There is a table of contents on page 1.
It shows how Cubs originally looked in it. The lube section begins on page 14.
http://farmallcub.com/rudi_cub/www.clea ... index.html
It shows the electrical system that a 1950 Cub originally had.
Cubs made before mid 1964 originally had 6 volt, positive ground electrical systems.
The Touch Control fluid mentioned in the manual for the Touch Control, was changed later to use Case IH Hy-Tran fluid. It is sold at Case IH dealers.
There are other brands, be sure it works with IH hydraulic systems before buying one.
I would check or change all the oils before using the Cub. Using it with low oil in a gear housing can damage the parts in the housing.
There are 3 separate gear housings, with 3 separate oil levels to check, in the rear area of a Cub, the transmission, and 2 final drives.
The transmissions in Cubs commonly get water in them, from rain, or condensation inside the housing over time.
The air cleaner is an oil bath air cleaner. Dirt that is sucked in settles to the bottom of the oil cup. It should have clean, light motor oil in the oil cup to work right.
There is a search box at the top of the page, to the right of the Farmall Cub, you can search for info that is on this website that people have posted.
Mht is talking about flushing the cooling system above, not the oil, or inside the crankcase.
The 15W-40 motor oil is good to use, the engines are not new, and thin motor oil can cause low oil pressure, if the engine is worn some.
You may need a little thinner oil if you are going to use the Cub in cold Winter temperatures.
Good luck with the Cub.
The Cub operator's manual can help you learn about maintenance that the Cub needs.
Below is the 1950 Cub operator's manual. The experts on here recommend people read it. It has lots of info about operation, maintenance, and lubrication. There is a table of contents on page 1.
It shows how Cubs originally looked in it. The lube section begins on page 14.
http://farmallcub.com/rudi_cub/www.clea ... index.html
It shows the electrical system that a 1950 Cub originally had.
Cubs made before mid 1964 originally had 6 volt, positive ground electrical systems.
The Touch Control fluid mentioned in the manual for the Touch Control, was changed later to use Case IH Hy-Tran fluid. It is sold at Case IH dealers.
There are other brands, be sure it works with IH hydraulic systems before buying one.
I would check or change all the oils before using the Cub. Using it with low oil in a gear housing can damage the parts in the housing.
There are 3 separate gear housings, with 3 separate oil levels to check, in the rear area of a Cub, the transmission, and 2 final drives.
The transmissions in Cubs commonly get water in them, from rain, or condensation inside the housing over time.
The air cleaner is an oil bath air cleaner. Dirt that is sucked in settles to the bottom of the oil cup. It should have clean, light motor oil in the oil cup to work right.
There is a search box at the top of the page, to the right of the Farmall Cub, you can search for info that is on this website that people have posted.
Mht is talking about flushing the cooling system above, not the oil, or inside the crankcase.
The 15W-40 motor oil is good to use, the engines are not new, and thin motor oil can cause low oil pressure, if the engine is worn some.
You may need a little thinner oil if you are going to use the Cub in cold Winter temperatures.
Good luck with the Cub.
- Don McCombs
- Team Cub Mentor
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1957 Farmall Cub w/FH
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A - Circle of Safety: Y
- Location: MD, Deep Creek Lake
Re: flushing crankcase
There is no "flush kit" for the engine, that I am aware of. To add to Eugene's suggestions, I would add three ounces of Seafoam to each of the oil changes.
- Peter Person
- Cub Pro
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- Location: CT, Stafford Springs
Re: flushing crankcase
...and make sure to prime the oil pump.
Don’t want to run the engine without oil flowing.
Don’t want to run the engine without oil flowing.
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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- Posts: 10
- Joined: Wed Nov 18, 2020 3:24 pm
- Zip Code: 40047
Re: flushing crankcase
Thanks for all the great info. Question: How does one go about primming the oil pump?
- Don McCombs
- Team Cub Mentor
- Posts: 17488
- Joined: Mon Feb 03, 2003 6:45 am
- Zip Code: 21550
- Tractors Owned: "1950 Something" Farmall Cub
1957 Farmall Cub w/FH
1977 International Cub w/FH
1978 International Cub
1948 Farmall Super A - Circle of Safety: Y
- Location: MD, Deep Creek Lake
Re: flushing crankcase
Scroll down in this thread for a description of the procedure.
http://farmallcub.com/phpBB2/viewtopic. ... 5&start=60
http://farmallcub.com/phpBB2/viewtopic. ... 5&start=60
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- 5+ Years
- Posts: 408
- Joined: Sun Jul 08, 2018 9:02 pm
- Zip Code: 27606
- Tractors Owned: 1949 farmall cub(building from parts) 1950 farmall cub
1971 David Brown 880 selectamatic - Circle of Safety: Y
Re: flushing crankcase
I’m sorry I misread your post about flushing the crankcase. I was talking about flushing the cooling system which is probably not a bad idea also. The bolster (bottom of the radiator) is bad for collecting crud as is the block around cylinders 3 and 4. As for the crankcase a little sea foam and a couple of oil changes should take care of that
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