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Case Tractors Discussion Forum
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Darn, the SC has a broken block

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Dave Fullmer (T

09-24-2004 12:21:41




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Well, I was going to rebuild this old '47, but today I took some tools back to it to get the front cast wheels off. While I was back there, I looked it over real careful and wouldn't you know it but the block is badly cracked. In fact it looks like someone tried to patch it with JB Weld. That's what got me looking closer. While I looked at the JB Welded spot I noticed two diagional cracks across the side of the block under the carb area. I guess that will squash my idea of rebuilding the old girl. It's too bad because the rest of the tractor looks not too bad. Guess I'll have to offer the parts on EBay or something. Oh well, didn't cost me any thing and it might help somebody get theirs running. In exchange I might get enough to start working on one of the Allis 'B's.

Dave

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RobertTX

09-26-2004 20:00:39




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 12:21:41  
C-Amick also has a good idea. If it holds with that test, you are up and running. Even if it needs welding, as your description of the triangular area suggests, that can be done pretty easily. If the cast is tough welding, a combination of welding and JB can put the old tractor back in business. Don't get discouraged, these are only steps in a process, you can make them.
Robert



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Bill c.

09-24-2004 17:01:31




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 12:21:41  
I recently purchased a SC with a cracked block as you described . I welded it first then put JB over it works good no leaks .



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Dave Fullmer (TN)

09-24-2004 16:56:24




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 12:21:41  
Well maybe I could get my face up off the floor then. It just seemed to me that the way this block is cracked, kind of like a triangle, it would be too far gone. The JB Weld is horizontal down at the bottom of the flat surface and then the two cracks seem to start at the top and near the center and run diagonally down towards the front and the back of the block. I guess I should look further before I throw it away. My '37 Allis was cracked in two places and I took the block to a place called Cast Iron Welding just up the road about 15 miles. They took care of it just fine. So I know blocks can be rescued. Maybe this one could be too.
Thanks Guys for making me feel better.
I don't know why the idea of getting this one running has excited me so much. I should feel like a traiter, thinking about being unfaithful to the AC's I own. I do have a 9N Ford that I picked up cheap. But I was going to use it to agitate the Ford guys at the shows by putting a rope on it from the back of one of my Allis's and putting a sign on it saying "Allis's pull toy"
(Just kidding). Wouldn't do that to the Ford guys but would love to do it to the JD guys.
Actually, I would love to have an unstyled JD "A" or "B". The problem is that I would never live it down with my family if I got one because of all the comments I have made. My son has his wife's grandfather's '51 JD B and he is always giving me some JD item for Chrismas just to get a reaction out of me.

Dave

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Glenn F.

09-25-2004 17:03:57




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 16:56:24  
You may find more problems with that engine than the observed cracks. However I'm sure you could find another engine or "complete" SC for parts quite reasonably. The SC's and DC's are great old tractors. Excellent power and pulling ability.



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C. Amick

09-24-2004 13:53:16




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 12:21:41  
As a rough test, put some coolant in the radiator and let it set in there for 2 or 3 days and see if any of it makes it to the oil pan. If it doesn't, then I would say the block is usable. If you do get some antifreeze in the oil pan, it means that the bock "might not" be usable. Because the leak could be coming from a bad sleeve seal. I have a Farmall Super C that I use that has a crack all the way across the side of the block. It was electric welded, ground off, and the pits filled with J.B. Weld.

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RobertTX

09-24-2004 12:46:24




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 12:21:41  
jal-SD is correct, that is not a tractor killer. There are even some posts floating around about how to press rough sandpaper against the JB as it hardens to make it match the cast around it. The blocks were much weaker in this area than any other area, so usually the rest of the block is OK. The Ls and LAs usually crack on the other side, next to the pushrods, and those can be impossible to repair.

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jal-SD

09-24-2004 12:41:13




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 Re: Darn, the SC has a broken block in reply to Dave Fullmer (TN), 09-24-2004 12:21:41  
Common place for a crack from a frozen block on both SC's & DC's. There are a lot of them running around our part of the world w/blocks JB welded in that location. (We've got one of each.) Water jacket, only. If it doesn't leak, don't worry about it, if it does, CLEAN the crack, get out all the old JB, make a little "V" with a die grinder & re-install JB. Put a heat lamp on it while it dries, file it off w/body file & paint the whole block. The engine won't care. (My $0.02 worth. jal-SD)

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