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TR2/3/3A No spark in TR3

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J

JAJohn

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I'm getting no spark in my TR3. I am attempting to bring the car back to life after sitting for 40 years. New wiring harness. New battery. With the ignition key on, pressing the starter button makes the engine turn over nicely, but when I spray a couple puffs of starter fluid into the carb throats there is no firing, no backfire. So I checked and confirmed all the wiring at the control box (which I did not replace), checked fuses (new). (There is juice to the system--I accidentally touched a headlight line to the frame and blew a fuse.) Then I took out the no. 1 spark plug and wire, and held it against the block, with ignition switch on, and I cranked using the button on the solenoid. No spark. It has a new condenser, so I switched back to the old one. Still no spark. I don't have the original coil; using a new Lucas one. New points. The black-fiber coated wire inside the points looked very questionable, so I cleaned and re-soldered it. Still nothing.
One note: The dashboard red light stays off when I switch on the ignition at the key, but when I'm cranking it from the push switch, the red light comes on. The ammeter does not move to show any drain on the battery, but the fuel gauge flips over to "full," even though there's no fuel in it.
Any hints? Suggestions? Thanks.
 
So...my car is positive ground. Does the white wire go to the driver's side or the fan side of the coil? It's on the fan side now.--jj
Depends on whether your coil is installed with the (+) terminal toward the front or back.

Seriously, if it's a reasonably modern coil, with the terminals marked (+) and (-), the (+) side should be the distributor connection in a positive-ground car. Some of the older coils have different markings, and I'm not sure about those.

It's not a big deal, and it will work either way.
 
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