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Case Tractors Discussion Forum

case sc

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02-21-2021 15:50:44

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friend brought me a case sc tractor to work on. need help finding #1 top dead center. thanks in advance!

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02-21-2021 16:41:44

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 Re: case sc in reply to grader56, 02-21-2021 15:50:44  
Sorry I got the firing order wrong, it is 1 3 4 2. Good thing I looked at the book.

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02-21-2021 16:29:46

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 Re: case sc in reply to grader56, 02-21-2021 15:50:44  
Been a few years since I owned an SC and worked on them. The book said the flywheel inspection hole is on the right side of the clutch housing. Just off the top of my head I thought it was on the left, but I was wrong.

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02-21-2021 16:12:19

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 Re: case sc in reply to grader56, 02-21-2021 15:50:44  
#1 cylinder is at the radiator end of engine. The flywheel inspection pipe plug is on the left side near the rectangle plate for clutch adjustment.
Hand crank engine until punch mark on the flywheel shows through the inspection hole. This is top dead center for # 1 cylinder. You can also check firing order of the engine by hand cranking the engine with the plugs removed but still attached to wires. When the magneto trips a plug will fire. Make sure plugs are grounded out on the block when checking for spark.
Firing order is 1 4 3 2. As long as the mag is installed correctly you can adjust when the spark plug will fire by loosening the 2 bolts on the mag and rotating the mag, the bottom bolt has an elongated slot so the mag can rotate some. This will allow an adjustment to when the plug fires in relation to the piston position.

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02-21-2021 16:24:05

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 Re: case sc in reply to flatpkr, 02-21-2021 16:12:19  
your a lifesaver, thanks! someone has modified this tractor,converted to 12v, gutted magneto,added a coil, just useing mag as a distributor, trying to figure it all out. thanks again

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02-21-2021 16:34:13

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 Re: case sc in reply to grader56, 02-21-2021 16:24:05  
Im guessing the distributor cap is numbered for the plug wires like the magneto is. The magneto makes a click as it rotates and fires a cylinder.

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02-21-2021 16:24:05

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 Re: case sc in reply to flatpkr, 02-21-2021 16:12:19  
These pictures and descriptions may help also.

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Today's Featured Article - Case Farm Equipment - by Jeremy Sweeten. My name is Jeremy Sweeten and I am currently a junior at Purdue University. I am takin a dual major in Agriculture Systems Management and Agronomy. I am from North Central Indiana, Miami County to be exact. My dad teaches for Marion Community School Systems an outdoor lab called Asherwood. We live there to manage the place. They just happen to have a Case 311 with a Triple Range transmission. I grew up mowing, pushing snow, and hauling maple sap with it. In 1986 my parents bought an old, ... [Read Article]

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