water jacket on 2 Ton

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heckrj

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Hi,
I have a 2 ton cat that I got from my dad many years ago.
His neighbor borrowed it but neglected to drain the water over the winter.
It caused the water jacket to crack in the back of the engine. I was able to run the engine if I ran a garden hose into the radiator.
What would be the best way to consider fixing the crack, without hurting the value?
Everything I read about welding the cast sounds like a gamble (and expensive).
Has anyone tackled this kind of problem?

Any thoughts would be appreciated.

Thanks,
Richard

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Tue, Jul 23, 2013 3:33 AM

Old Cats

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If you are not getting water into the oil side of the engine and the crack is not too objectionable to you, epoxy or some other goop might just be good enough to get it to hold water. If it does not work you can always grind it out and weld it or have it welded. I have seen some "cold patchs" that worked very well. There is also metal stitching where you drill and tap overlapping holes and put things together that way. 2 Tons are nice crawlers hope you can fix it up.

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Tue, Jul 23, 2013 8:46 AM

heckrj

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Reply to Old Cats:

If you are not getting water into the oil side of the engine and the crack is not too objectionable to you, epoxy or some other goop might just be good enough to get it to hold water. If it does not work you can always grind it out and weld it or have it welded. I have seen some "cold patchs" that worked very well. There is also metal stitching where you drill and tap overlapping holes and put things together that way. 2 Tons are nice crawlers hope you can fix it up.

Thanks for the response.
If I did try an epoxy, Wouldn't it penetrate deep into the crack and make it hard to grind out in the future?

You mentioned a 'cold patch'. Is that what you consider the epoxy?

Has anyone tried a product 'castaloy'? It sounds like a low temp brazing process.

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Tue, Jul 23, 2013 10:45 AM

drujinin

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Reply to heckrj:

Thanks for the response.
If I did try an epoxy, Wouldn't it penetrate deep into the crack and make it hard to grind out in the future?

You mentioned a 'cold patch'. Is that what you consider the epoxy?

Has anyone tried a product 'castaloy'? It sounds like a low temp brazing process.

Pay for metal stitching. Let a knowledgable repair tech fix it.
Castalloy is a welding rod(without GOOGLING).
You are right about welding Cast Iron, some advise is good, some isn't good. Scattered across the US are a number of talented Welders who specailize in Cast Iron engine repairs.
As far as Epoxy Patches, yes there are many fine materials available today that will work in the case of an external crack on a block. Grind it DEEP! Do not scrimp on the grind as you want virgin iron and depth of material to bond with.
Good Luck on your Decision!

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Tue, Jul 23, 2013 6:01 PM

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