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Discussion Forum

"new" SC owner

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messy gearhead

09-09-2008 20:19:22

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My dad owned three SC's, a DC and a 400 Case that we farmed with many years ago. I have lots of great Case memories. Now I have two boys interesting in fixing up old tractors and until last Saturday we only had one tractor, so I picked up a 1945 SC that I thought was going to be an easy project. My dad passed away three years ago and I can't ask him for advice so I'm turning to the next best resource (this site).

We tried to drive it home, but it over heated about 2 miles down the road so we just towed it the rest of the way home. Before we left we had to add about a gallon of coolant, no obvious major leaks, just a little seeping around the top hose. I think the thermostat or radiator might be plugged up as the tractor was stored with no radiator cap for more than 4 years. Is there anything else in the cooling system to look out for?

After I got it home I checked the compression and noticed the #2 cylinder was at 50 psi, all the others were about 65 psi. Also some hissing sound from the intake while #2 was coming up on compression so I pulled the valve cover and found a partially stuck open intake valve. I got the valve freed up and it seems to run smoother now, but I found some bent pushrods. I pulled a few out thinking I could straighten them, but they are nearly corroded / rusted through near the lifter end. Any idea where I can get some SC pushrods?

Now the part the worries me the most. Once I put a muffler on it, I could hear a random, but fairly loud knocking. It sounds like metal banging on metal. It's coming form the governor. I did some searching and didn't find any posts about SC governor noise. Has anyone had SC governor issues? What is involved with removing the governor assembly?

Thanks for the help.

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messy gearhead

09-11-2008 05:33:17

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 Re: new SC owner in reply to messy gearhead, 09-09-2008 20:19:22  
I found the eBay pushrods shortly after I put up the first post. I don't see any flow in the radiator, I wonder if the noise it the water pump grinding up the mouse bones from the nests? Easy enough to test, I can just take the fan belt off and listen.. Lots of other mouse nest in the tractor so I might have to flush the cooling system before I tear in the front cover.

Thanks for the suggestions guys.

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09-10-2008 12:23:27

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 Re: new SC owner in reply to messy gearhead, 09-09-2008 20:19:22  
You mentioned that it was stored without the radiator cap. I would check for a mouse nest down inside the radiator, at least on my tractors, that seems to be their favorite spot to pack away stuff. They can plug stuff up in a hurry. The rust on the push rods could be from condensation, although if they were rusted through, I'd suspect that there was quite a bit of water in there somewhere, it should show up in the oil.

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C. Amick

09-10-2008 09:24:15

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 Re: new SC owner in reply to messy gearhead, 09-09-2008 20:19:22  
The water pump could be the source of the overheating problem. They seem to go bad on tractors that have been sitting. Remove the radiator cap and look into the radiator with the tractor running. You should see a lot of swirling coolant, if the water pump is working. Also check the oil in the bottom of the oil pan for coolant. The governor is pretty easy to remove. Go to CaseIH.com and do a search for "SC" parts. The parts book figures are all there for the whole tractor that will show you how things fit together. I guess you probably remember that that the clutch is lubricated by the engine oil. Don't forget to drain the bell housing when you change the engine oil.

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Tom Railsback

09-10-2008 08:43:42

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 Re: new SC owner in reply to messy gearhead, 09-09-2008 20:19:22  
There is a set of pushrods on Ebay right now, item no. 330269752055. I didn't look but there may be a governor assembly too; they show up from time to time.

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