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Water in the Oil

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3RD Generation

09-30-2007 16:37:40




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I have long been a reader and a fan of alot of individuals on this forum.
I have a puzzling thing happening with the Farmall M that I have. This M was bought new by my father after the Korean war. Once Dad was done farming the engine stuck on it. I overhauled the engine with a neighbors help in the early 90's. The tractor has been used very little since then. The last five years or so I have noticed Antifreeze in the oil. The tractor sits all winter and I have always drianed a litle off of the bottom of the drain pan in the spring before starting the engine. I just got the tractor out for the first time this year. When I went to drain the water out of the oil, I dreined a full 5 gallon pail of liquid out of the pan. The water is gone from the radiator. Riddle me this???? How can this much water drain into the oil pan when it is not under pressure. It was good for -32 degrees when I parked it. third party imageI am baffled. third party image

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slowfolk

10-01-2007 09:59:38




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
Had the same problem with a Allis Chalmers WD45.
I would check the oil on a regular basis and notice the the oil was coming up higher on the dipstick. After talking with others on this site I started removing the head first, nothing appeared wrong, then the pan, the first thing I seen was antifreeze dripping from around the sleeve on the rear piston sleeve. Removed that sleeve and found the orings from around the sleeves deterioated causing a leak.

Slowfolk

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teddy52food

10-01-2007 06:02:15




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
I think the H and M blocks Are the same except for size. On the H there is a soft plug in the front of the block behind the timing cover and plate. I had one that was rusted through and leaked water into the oil. If you have the pan off & see water coming from the front, I would pull off the timing cover and plate.



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Bob Farrell

10-01-2007 05:22:13




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
Whatever is leaking has to be down low to get five gallons of water out. Water, of course, seeks its own level. bob f.



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El Toro

10-01-2007 04:18:37




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
How often was the antifreeze changed? It will lose its rust inhibitor and then start working on the metal. Hal



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RobMD

09-30-2007 19:57:05




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
drop the pan, fill the radiator, sit and wait for it to come out.



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J in Pa

09-30-2007 19:15:01




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
3RD
had a similiar problem with an H.
i had overhauled it new sleeves pistons, etc etc.
after a couple days went and checked the drain in the pan. found anti freeze.
dropped the pan and started looking. found it dripping between the block and the sleeve on #2 cylinder. somehow the block had a hole in it. not a crack but a hole.
must have been done before i got the tractor.

my suggestionis to drop the pan and start looking.
if yo have anti freeze in it you should be able to see where its coming from. anti freeze doesnt need a large crack or hole to get through.

good luck
J in Pa

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3rd Generation IH

09-30-2007 18:31:38




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
The head was cracked when we did the overhaul. I put on a 400 or a 450 head.(I don't remember which. It also has high domed fire creater pistons in it so it has a lot of snort.) We coated the gasket with copper spay sealent. I was sure to retourgue the head after it was warmed up. reset the valves also. I have a degree in Diesel Technology, so I can understand how the water may have gotten there, but I am confused as to how this happened while the tractor sat being unused during the winter.

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ScottyHOMEy

09-30-2007 19:43:12




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 Re: Water in the Oil in reply to 3rd Generation IH, 09-30-2007 18:31:38  
J in PA may be onto something. I don't know much about the dry sleeve engines (I drive a BN and A SuperC), but if you're confidnet the replacement head is good, I'd look at the fit of the sleeves (top and bottom) first. The other possibility, where the original head was cracked, there might be a crack at the top of the block, between the sleeves, that would let that much fluid through under pressure.

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ScottyHOMEy

09-30-2007 17:17:34




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 Re: Water in the Oil in reply to 3RD Generation IH, 09-30-2007 16:37:40  
A BIG question there. Could be a lot of things.

Head gasket is an obvious place to look. On the old Farmalls (maybe on all engines, I don't know) it was always recommended, after putting a new head gasket in, that you get the engine running good and warm, and then retorque the head. Sometimes, but not always, pulling the head will show you a spot on the head or the top of the block where the coolant got across into your oil.

But that much fluid suggests the problem could be a crack in the crankcase further down. I know it was a long time ago, but can you recall if there was a similar problem when you drained the engine before the rebuild?

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