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Tractor Talk

Re: Ford 640 ignition problem (???)


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Posted by GEO on July 28, 1998 at 13:38:40:

In Reply to: Ford 640 ignition problem (???) posted by Erv on July 27, 1998 at 20:14:17:

: My 640 was running fine, then just stopped like I had turned off the key. Engine cranked OK but wouldn't fire. I jerked a plug and it wasn't getting spark when I cranked her. I pulled the coil wire, and got no spark there, either. The coil terminal to the battery had 6V no problem. I replaced the coil, distributor, rotor, condenser and point, but all it would do is crank. Still appeared to be no spark to the plugs. Battery was almost dead, I was totally bummed, and on what was probably the last crank in the battery, she started.
: So what am I missing here?
: Thanks for any help you can offer.

Erv,
Might check the wire from the switch to the distributor and make sure it is hot and not ready to break at one of the terminal ends. If you tractor is equiped with a resistor check the connections there as well. Just in case you missed it, there is a spring clip that fits over the rotor shaft and the rotor fits on it. Be sure this spring is in place. It is also a good idea not to use automotive graphites sparkplug wire. Use the meatal core types. Good Luck.

GEO


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