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eliminating ampmeter - burn points?


 
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Mopower
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PostPosted: Mon Jun 11, 2007 7:53 pm    Post subject: eliminating ampmeter - burn points? Reply to specific post Reply with quote

troubleshooting burned points over and over. accel coil with or without resestor did it. eliminating ampmeter cause it?

 
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Bob
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PostPosted: Mon Jun 11, 2007 8:34 pm    Post subject: Re: eliminating ampmeter - burn points? Reply to specific post Reply with quote

WOW... That's a TOUGH one!

 
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Bus Man
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PostPosted: Tue Jun 12, 2007 3:38 am    Post subject: Re: eliminating ampmeter - burn points? Reply to specific post Reply with quote

Eliminating the ammeter shouldn't affect it. Is the coil designed to have a resistor in the circuit? Some coils are made to run without a resistor. Since it's done it with or without the resistor, you might want to check your condenser. The condenser should absorb the voltage spikes created when the points open to help prevent excessive arching (burning the points). If the coil is suppose to have a resister in the circuit, what voltage do you have on the negative side of your coil with the key on and the points closed? Should be around 5 to 8 volts (12v system). If your voltage is too high you might have the wrong resistor or it's wired wrong.

 
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Mopower
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PostPosted: Tue Jun 12, 2007 2:42 pm    Post subject: Re: eliminating ampmeter - burn points? Reply to specific post Reply with quote

This is negative ground. I was told the Accel coil didn't require a resistor as most coils do (8V input). It was running worse and worse. We rewired the whole machine cause it wasn't that great. I changed points AND condensor next thinking the condensor was getting hot as some stock tractors with bad condensors have done in the past. Still burned points out in about 15 seconds with or without resistor before the coil. I guess I'll test my coil output voltage. I'm no electrician obviously, but it ran good once. We upped the compression from about 5:1 to 10:1 ratio.

 
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jpl
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PostPosted: Tue Jun 12, 2007 4:24 pm    Post subject: Re: eliminating ampmeter - burn points? Reply to specific post Reply with quote

are you putting grease on the distributor or rubbing block, got to be careful a little grease gets on points and they will burn out quickly, if not check voltage from coil neg to points, (i just fixed a allis g that was burning points but this one had 6 volts and bat was backwards) sorta sounds like a bad coil to me. could have internal leakage, hope you get it fixed. thats just my 2 cents worth.

 
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