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I just bought a land rover with a 186P motor in it, when I got it there was no coil. I had 3 lying around so tried all 3 and still no spark. unless I'm unlucky and just happen to have 3 dud coils, what else could be wrong? I have tried hooking up both properly through the wiring harness and also a wire directly from the battery to the + on the coil with the negative hooked up to the one wire on the dizzy (points dizzy) and hooked a timing light up to a couple of the plugs while cranking and nothing. Any ideas? Is my hookup method correct? If I could get it running at least it will be easier to sell, but turns over nice and quietly so sounds like a good one.
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Are the points opening and closing? With ignition switch on, is there power at the positive side of the coil? Is there a spark at the points when you manually open and close them?
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The best tool for solving this problem is a good old fashioned 12V test light. Forget multi-meters & all that other fancy stuff, a simple light will tell all.
1. See if it lights up at the coil +ve with the ignition on. If it doesn't you have a ignition switch or wiring issue.
2. If it does, then see if it lights up at the coil -ve.
3. If it does, this means that the coil is probably OK & that the points are open or they're stuffed. If it doesn't the coil is open circuit or the points are closed or you have a short (to ground) at the points wire. To test for an open circuit coil, remove the wire to the distributor (& any others) & test the -ve terminal again.
4. Try cranking the motor, the light should flash as the points open & close. If the light stays bright the points are too wide open or dirty & not contacting.
It's unlikely you have 3 stuffed coils.
Dr Terry. |
If at first you don't succeed, just call it Version 1.0 |
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quote:
Originally posted by Dr Terry
The best tool for solving this problem is a good old fashioned 12V test light. Forget multi-meters & all that other fancy stuff, a simple light will tell all.
1. See if it lights up at the coil +ve with the ignition on. If it doesn't you have a ignition switch or wiring issue.
2. If it does, then see if it lights up at the coil -ve.
3. If it does, this means that the coil is probably OK & that the points are open or they're stuffed. If it doesn't the coil is open circuit or the points are closed or you have a short (to ground) at the points wire. To test for an open circuit coil, remove the wire to the distributor (& any others) & test the -ve terminal again.
4. Try cranking the motor, the light should flash as the points open & close. If the light stays bright the points are too wide open or dirty & not contacting.
It's unlikely you have 3 stuffed coils.
Dr Terry.
try another dissy. they can be temprimental at times
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