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1972 Case 470 Tractor Electrical Problems

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Jim from OK

01-22-2008 15:48:20

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Hello,

I'm looking for some advice. My tractor recently started and died several times. So I went through and put new carb, fuel line, sediment bowl, spark plugs, coil, resister, rotor, points and condenser and distributor cap. My battery is dead as a door nail. I jumped the tractor with my F350. As I was jumping I noticed the resister smoking so I unhooked the F350 and went and got my portable battery jump starter. I then took a test light and traced power going into the coil but nothing coming out. So I replaced the coil and resister again. Still no luck. This is a 12V negative ground system.

I am still not getting any power into the top of the distributor cap or the negative side to the points. What am I doing wrong? I can't get any fire but am getting fuel so it has to be electrical.

Thanks in advance for your help,
Jim

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Tom (Ks)

01-23-2008 18:08:54

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Re: 1972 Case 470 Tractor Electrical Problems in reply to Jim from OK, 01-22-2008 15:48:20

First, check to make sure power is into the coil. The points have to be open to get the test light to show voltage. Make sure the point gap is .020 and you should be able to watch the test light blink on and off while cranking the engine over with the test light connected to the positive (distributor) side.

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