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Case Tractors Discussion Forum
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Epoxy Block Repair??

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ted

04-23-2004 03:09:37




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I've got a DC with a small crack in the side of the block. It dosn't seem to hurt anything and maybe drips one drop of coolant every 4-5 hours. I could ignore it, but it drives me nuts. I've heard of epoxy materials and would like to try that vs. removal and welding. Has anyone done this successfully? What material did you use and what is the technique? Can I patch the block while in the tractor or do I need to remove it and lay it flat?

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Roger (Mi)

04-23-2004 04:39:31




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 Re: Epoxy Block Repair?? in reply to ted, 04-23-2004 03:09:37  
I repaired a foot long horizontal crack in a International TD-14 block without removing the motor. V out the crack slightly, weld in the crack with a nickle welding rod. Do not weld any more than an inch at a time! After welding in one inch, use a welding hammer to hit the weld to stress relief it. Then weld the next inch, and repeat as above until you've welded the entire crack. Then use JB Weld to seal any tiny holes. The welding makes the block whole and reduces the chance of expansion/contraction causing the JB Weld to eventually leak. Good luck.

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Alberta Mike

04-23-2004 03:54:15




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 Re: Epoxy Block Repair?? in reply to ted, 04-23-2004 03:09:37  
I've used JB weld with good results. It is preferable to have the engine on it's side but not really necessary. Make sure the block is drained and then grind and v-groove out the crack somewhat. Blasting the area is a good idea too if you've got access to one of those little sandblasting kits for your compressor. Dry the area well with a heat gun to make sure all the moisture is out of the cracked area. Thin layers works good and I've even used fibreglass matt with repairs of this type, put a layer of JB on the area and then a piece of matt that has been saturated separately in the JB stuff and apply it like a bandaid when the first coat is still wet. Work it in and smooth it out. I repaired a HUGE area once and it worked pretty good.

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