Sad Day

[Bob Underwood]

Found out the standard rings are not going to take up the slack. Will have to have it bored. Talked to Case dealer and found that oversize flat top pistons and rings are no longer ava from case he did find, find an after market company that can supply 20 and 40 flat top or he said I could change the head to a 154 and use the Hi Dome oversize they come in oversize up to 40. Sure glad I heard it run. Any comments appreciated. Thanks Bob

[Bill Blansett]

Bob, I just overhauled two Cub engines, complete. Re bored to .040 over. Used After market set of Pistons and rings. They sure looked good. I forget the name, but it was a Dana company. Dana produces most of the automobile stuff running on the road and I can't see why it wouldn't be good enough for the "high speed" Cub. For my nickle, I would go with them again and keep my standard head. Be nice if you could clean up at .020 over. Good luck with it. Bill

[allenlook]

Is it possible to sleeve a Cub engine, or is there just not enough metal in there?

[Bill Blansett]

Allen, I don't think it is practical to sleeve a cub engine, However with that said, one of the cub forum members had a nice standard engine with a deep gouge in #3 cylinder wall. I took the block to a machine shop and the man bored the block for one sleeve, and here is how he did it. He obtained the sleeve and then bored the block, but did not go all the way through to the bottom. Just past the lower piston skirt travel. This left a ridge to hold the sleeve in place at the bottom. He inserted the sleeve and then surfaced the head with the sleeve in place. The head holds the sleeve from the top. No way for it to move, He then bored the new sleeve to match the original piston, so as to leave all a matching set. Worked great. That cub is restored and will never have to do a hard days work anymore. Could be that some others have sleeved a cub engine. Maybe we will hear. Bill

[Bob Underwood]

Bill I agree on keeping it standard. He said they would come from Tisco, did not say the actual manufacturer. Have not had a bore gage in it yet, I expect it will have to go 40. I put a standard ring in and had .042 end gap quite a bit more than the max of .017.

Allen I don"t know if there is enought meat to do a sleeve job. Sure nice to have sleeves also have a 49 M that was sleeved about 5 years ago
Bob

[Bill Blansett]

Bob, I agree that the sleeved Farmall engines were nice. If not mistaken, only the Cub C-60 was the only Farmall that was not sleeved. The Cub was just not supposed to last this long. It was an interim tractor after the big war. That said, even a set of new sleeves/piston set can get pricey before all is said and done. I had to replace all on a Super A, C-113 engine that had water in the cylinders. Nice engine to work on. Bill

[Bob McCarty]

Our local antique tractor expert showed me a Cub engine that had had one cylinder sleeved. So it can be done, but may be pricey.

Bob

[Bus Driver]

Bill's description of the sleeve in the Cub sounds like the work of a first class engine machinist. While not a Cub, the 504 Farmall with gasoline engine did not have a sleeved block.

[rlreed50]

Just a question. If a c60 engine was bored 40 over, a 154 head installed with the domed pistons, would it increase the horsepower significantly???

Roger

[Bigdog]

Depends on what you call significantly. But probably not.

[rlreed50]

I saw on here somewhere you posted about a cub pull. I can see it now, bore it 40 over, domed pistons, 154 head. Now just where can I hide the nitrous bottle...

Roger

[John *.?-!.* cub owner]

Most any machine shop tha t bores engiens cna get the flat head oversize pistons. if you wnat to go with the domed pistons you cna reuse your old head by doing jsut a little grinding in the it to get clearance.

[Larry in IN]

Another IH engine that was not sleeved is the C-301 gasser. Used in the 806, 826, maybe 856 and the 715 combine, maybe other stuff. Truck applications, too.

['Country' Elliott]

Hey Bob...Just my "Dos Centavos" here...I'd go with Bill's suggestions to keep your original head and go with the .040 over-sized FLAT HEAD pistons.

Bill's a GREAT Mechanic and Engine rebuilder...You can take BILL'S ADVICE to THE BANK!

[Bill Blansett]

Country, those are mighty fine words. Thanks for the vote of confidence. I have learned a lot from folks like yourself, Big dog, Jim Becker, George Willer, Lurker Carl, and many others on this board.

Back to the C-60 engine. When IH started doing things to add a little more "Zip" to the engine, They started doing a few "beef ups" in places not necessarily obvious. Thus, the heavier connecting rod, tougher crank and more. One wonders if these were really necessary for the small increase in power, but I figure those engineers were a lot more learned in stress mathmatics than I ever could be. I tend to stick with the engineering design in both tractors and automobiles. That said, a lot of great improvements come from the race tracks and us shade tree mechanics. Bill