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Old Jan 24, 2014 | 11:44 AM
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Default Dumb Timing Light Question

Picked up a 'classic' but working Daytona inductive timing light on C.List. Seems the ignition wires on my engine aren't compatible - won't conduct juice to the light.

What do you guys do? Run an 'old school' radio-unfriendly wire from #1 plug to #1 distributor? Fashion - or purchase - some sort of 'insert' that both the plug and timing light clamp affixes to on the distributor ? Or just pretend you see the light when it isn't really there?

Any advice appreciated. I've got some tuning up to do.

Thanks.
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Old Jan 24, 2014 | 12:24 PM
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Just clamp the light where there is no sheilding, usually up by the distrubutor, down by the plug end may be too close to the exhaust and melt the pickup.
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Old Jan 24, 2014 | 12:25 PM
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First I'd make sure the light actually works.
I've run all kinds of plug wires and my SO inductive light never has trouble flashing.
If you light is good and it truly is the wire get a el cheapo wire and use it temporarily on #1 cyl
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Old Jan 24, 2014 | 12:27 PM
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Originally Posted by Eljay
Just clamp the light where there is no sheilding, usually up by the distrubutor, down by the plug end may be too close to the exhaust and melt the pickup.
Not sure I understand where the shielding is absent. You mean under the wire's boot?

Definitely not going to attach near the exhaust. I hate molten metal smoke.
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Old Jan 24, 2014 | 12:30 PM
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Originally Posted by AzMotorhead
First I'd make sure the light actually works.
I've run all kinds of plug wires and my SO inductive light never has trouble flashing.
If you light is good and it truly is the wire get a el cheapo wire and use it temporarily on #1 cyl
Light definitely operates. I pulled a random wire off distributor, put light's pickup above the spark. Flashes like it should.

Yeah, I'm thinking cheapo wire. But how does one find this at AutoZone? Or do you make something up with a known variety of crappy cable?

Still a bit confused.
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Old Jan 24, 2014 | 02:04 PM
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You could probably get by with a piece of electrical cord if you had to.
try going to a local parts place and see if they have just individual plug wires. Or hit the local wrecking yard.
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Old Jan 24, 2014 | 03:01 PM
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Originally Posted by AzMotorhead
You could probably get by with a piece of electrical cord if you had to.
try going to a local parts place and see if they have just individual plug wires. Or hit the local wrecking yard.
Electrical cord sounds possible. But what about connections? Just tape some ignition boots on the ends? I could that.

Will check with the neighborhood auto parts place. I'll try to find really cheap 'offshore' wire. If no dice there, a greasy old wrecking yard's just up the road a ways.

Thanks for the suggestions.
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Old Jan 24, 2014 | 03:58 PM
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Exactly what type of plugs wires do you have? Did you try reversing the direction of the pickup on the #1 plug wire? Are you sure #1 plug wire is actually firing, did you pull the plug or hold the plug end near a ground?
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Old Jan 24, 2014 | 04:49 PM
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Originally Posted by MelWff
Exactly what type of plugs wires do you have? Did you try reversing the direction of the pickup on the #1 plug wire? Are you sure #1 plug wire is actually firing, did you pull the plug or hold the plug end near a ground?
Plug #1 is firing. The engine actually runs great at speed. I just want to dial in the idle and make sure everything's tweaked right at lower RPM.

When you say 'reverse the direction of the pickup' you mean rotate the jaws of the pickup 180 degrees on the wire? Hadn't tried that.

The wires are blue, insulated versions. Look fairly new as well. Don't know the brand, though.

Thanks!
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Old Jan 24, 2014 | 04:51 PM
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Originally Posted by Tim 1973
Just grab some strand wire about 4" and strip the casing off it, pull # 1 plug wire from distributor cap push wire into cap then put plug wire back in. This will give you a wire to connect the timing light to.
There it is! Easiest solution. Thanks!
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Old Jan 24, 2014 | 08:50 PM
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Some of the older lights, before there was the inductive pick up to be used on the wire, used a adapter "spring". About 2" long and bellowed on one end to fit on the plug, and streight on the other end to fit into the wire boot. Then the TL lead was clamped on the spring.
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Old Jan 25, 2014 | 08:25 AM
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Originally Posted by Capkunu
Not sure I understand where the shielding is absent. You mean under the wire's boot?

Definitely not going to attach near the exhaust. I hate molten metal smoke.
I thought you had the metal radio shielding. My 70 454 has shielded wires that the timing light will not work on if you clamp over the shield. By the dist. the shielding stops where it grounds to the stud. The timing light works up there. I guess you had to be there
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