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Case Tractors Discussion Forum

Case SC trouble restarting

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jpbm1976

04-21-2004 11:56:30

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I have a Case sc that I have trouble starting when
the engine is hot/warm. It has a new condencer and plugs.It runs strong and plows good, but if you shut her off sometimes she wont restart. I treid all I know to do. She has spark, and the carb. has fuel. When it sets and cools down she starts right up. Anyone have any ideas ????? ?
Thanks Jake

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C. Amick

04-22-2004 06:52:27

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Re: Case SC trouble restarting in reply to jpbm1976, 04-21-2004 11:56:30

To check your mag coil, there should be a way to temporarily mount an external coil (the type used with distributor ignitions) and run through it. That way you don't have to remove your mag to check the mag coil. My dad ran his Farmall Cub that way for years.

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Gene Dotson

04-21-2004 20:12:50

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Re: Case SC trouble restarting in reply to jpbm1976, 04-21-2004 11:56:30

Sounds like the classic signs of a weak coil in the magneto. Check to see if you can hear the impulse tripping when it is hot. Maybe it needs some attention. Do you have access to another mag that you might try on it?... Gene

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C. Amick

04-21-2004 14:19:50

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Re: Case SC trouble restarting in reply to jpbm1976, 04-21-2004 11:56:30

My first guess would be low compression, but you said that it pulls good. What spark plugs do you have in it?

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jpbm1976

04-22-2004 05:30:39

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Re: Re: Case SC trouble restarting in reply to C. Amick, 04-21-2004 14:19:50

I just put in new autolites spark plugs. I was useing champion and I as told they were no good. it has new rings and head work done. New valves, spring ect. The mag seems to be fine but you know how that goes. When she is hot and wont start she is still getting spark . Its driveing me nuts! and thats a short trip. Thanks for your posts, anymore help would be great.

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Randy

04-22-2004 06:17:52

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Re: Re: Re: Case SC trouble restarting in reply to jpbm1976, 04-22-2004 05:30:39

I assume from your response that you have pulled a sparkplug wire and verified a spark when it is hot.
Do you have solid copper sparkplug wires?
Have you rebuilt the carburetor lately and if so what kit?

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jpbm1976

04-22-2004 07:52:20

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Re: Re: Re: Re: Case SC trouble restarting in reply to Randy, 04-22-2004 06:17:52

Yes I have rebuilt the carb. The kit was bought at my local auto part store not sure what kind/type it was. But its what they gave me to match my carb. No im not useing solid copper wire.
Im useing a universal wires set for a car.Yes she dose fire when warm/hot. Thanks again Jake

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Randy

04-22-2004 08:24:17

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Re: Re: Re: Re: Re: Case SC trouble restarting in reply to jpbm1976, 04-22-2004 07:52:20

I reason I asked about the carb rebuild was I had a similar problem after working on my carb.
I got my kit from NAPA. The float-bowel gasket was a perfect match for the bigger half but did not match the top, blocking off a portion of the fuel bowel vent. Unfortunately, I didn�t check the fit on the cover half. The vent is a long grove; the gasket supplied had only a round hole. Once I cut the gasket to open up the full length of the grove it worked just fine.

AS far as the wires go, when I changed from an automotive wire set to a solid wire meant for a magnetos the tractor seems to start easier.

I hope this helps.
Randy

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jpbm1976

04-22-2004 08:33:15

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Re: Re: Re: Re: Re: Re: Case SC trouble restartin in reply to Randy, 04-22-2004 08:24:17

Thanks Randy, Ill check the carb and change wires.
Hope to get this taken care of , the tractor lools to good not to run well. Thanks Jake

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Klyde

04-22-2004 10:14:11

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Re: Re: Re: Re: Re: Re: Re: Case SC trouble resta in reply to jpbm1976, 04-22-2004 08:33:15

Sounds like classic vapor lock. Next time choke it to death when your trying to start it hot and see if that helps.

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jpbm1976

04-22-2004 10:26:37

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Re: Re: Re: Re: Re: Re: Re: Re: Case SC trouble r in reply to Klyde, 04-22-2004 10:14:11

I thought about vapor lock, but I was told buy a case tractor "pro" that the SC has "never" vapor locked. Well you know I like to be different. How would I stop vapor lock? Is there any way to know for sure? The fuel line seems to be far enough away from the block. THanks Jake

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jpbm1976

04-22-2004 10:26:17

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Re: Re: Re: Re: Re: Re: Re: Re: Case SC trouble r in reply to Klyde, 04-22-2004 10:14:11

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