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Farmall & IHC Tractors Discussion Forum
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Farmall M engine update

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1 Dollar

02-28-2008 13:06:03




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Do you guys think that this crack will be possible to fix with a press-in repair sleeve? It is on the block of the #2 cylinder of a Farmall M. First good picture I got.

(I know, its kinda big)

third party image




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ChadS

02-28-2008 19:17:31




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 Re: Farmall M engine update in reply to 1 Dollar, 02-28-2008 13:06:03  
Ive seen worse,,, where that is,,,, Id put about an inch of hard block in the water jackets,,, enough to put about a half inch over the highest pit,,,, wont be no water there to leak thru... wont be enough water missing to affect much,,,,, if your running dry sleeves,, say like a stock M sleeve,,, thats what Id do and not think about it ever again. Another option would be to maybe JB weld the pits shut,,,, smooth it out really well and then slip the sleeve in,, maybe add a dab of sleeve adhesive to help??? Id do the hard block trick,,,, if no boring is being done,,,, and sleeves are used,,, make sure the water jackets are super clean, maybe hottank or lightly sand blast the area before the filler is done,,,,, to get the rust out of the bottom. Ive seen worse,,, and I wouldnt be afraid of it. JMHO,, ChadS ChadS3@hotmail.com

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kossuth

02-28-2008 17:47:14




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 Re: Farmall M engine update in reply to richwill, 02-28-2008 13:06:03  
I'd get an idea from the machine shop as to how much work and money you're getting into fixing that thing. There have to be hundreds of M, SM, 400, and 450 blocks laying all over in your local salvage yards. I'd try to find a good useable block depending on the money you will spend. Overboring with a larger sleeve might work, but there are no guarantees either.



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Owen Aaland

02-28-2008 16:37:54




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 Re: Farmall M engine update in reply to 1 Dollar, 02-28-2008 13:06:03  
A machine shop will probably want to leave about 1/4 inch of material on the bottom to seat the sleeve against so that it will not come loose. If you have an additional 1/2 to 3/4 inch above that to the crack if would most likely be fine. However, that type of damage is usually caused by freezing and the block may have other cracks. It would not be unusual for such a block to need line boring and the deck resurfaced to get things true. It may be better to look for a different block.

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Janicholson

02-28-2008 13:22:14




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 Re: Farmall M engine update in reply to 1 Dollar, 02-28-2008 13:06:03  
If that is a bead of coolant comming out of the very bottom (1/8" above bottom of casting) I do not think it is reparable. there is just not enough distance between the crack and the crankcase to keep it sealed with a repair sleeve.
If that is not the crack, and it is above where the line of beads or pits are located, I would try it. JimN



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1 Dollar

02-28-2008 13:30:14




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 Re: Farmall M engine update in reply to Janicholson, 02-28-2008 13:22:14  
It is actually about an inch, though it looks closer, and yes, that is coolant.

Thanks



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Janicholson

02-28-2008 13:44:47




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 Re: Farmall M engine update in reply to 1 Dollar, 02-28-2008 13:30:14  
If that lower bead of coolant is just leaking down the bore, and in not on (what looks like) a crack, I would try putting in an oversize repair sleeve, then boring that to take the stock thin dry sleeve. JimN



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teddy52food

02-28-2008 14:29:52




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 Re: Farmall M engine update in reply to Janicholson, 02-28-2008 13:44:47  
I have bored and put in dry sleeves and always needed an inch at top and bottom to make a good seal. I would put in a repair sleeve and bore it to fit the piston and run the piston in it that way. By the time it wears out it may be a parade tractor anyway. If need be it could be bored to use another sleeve (from a kit) when the time comes for another rebuild.



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Damp;Dservice

02-28-2008 13:08:25




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 Re: Farmall M engine update in reply to LMack, 02-28-2008 13:06:03  

I think a sleeve would fix it, would have to bee a good tight fit and maybe a little sealant of some type on the bottom, I would sure try it



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Andy Motteberg

02-29-2008 14:15:02




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 Re: Farmall M engine update in reply to Damp;Dservice, 02-28-2008 13:08:25  
D&D Service,

Got any pics of that IH truck yet???



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