Transistor ignition replacement parts
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Joined: Apr 2023
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From: Anoka, MN
Transistor ignition replacement parts
I have these solid state cross reference books from the 70’s and they have the delco numbers for the 1969 ti board. I plan on purchasing them to repair my board. I’ve tested everything except the pulse signal coming from the pickup coil in the distributor, What voltage should I see when cranking the engine? I am feeding it 12 volts on the gray wire. There is 12 volts on the pink wire when not cranking and 9 volts when cranking. I have the amplifier out and on the bench.
thanks in advance
mike
thanks in advance
mike
Le Mans Master
Joined: Aug 2006
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Le Mans Master
Joined: Aug 2006
Posts: 7,427
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
http://tispecialty.com/articles/66-71diagram.htm
If that doesn't help go to his home page or Google TI in a1969 Corvette.
If that doesn't help go to his home page or Google TI in a1969 Corvette.
Burning Brakes
Joined: Sep 2020
Posts: 832
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From: Chapin SC 29036
You can try this one page document "66-71 TI Ignition" to see if it helps. I downloaded it somewhere, but have never used it.
The drawing is something that I made a few years ago when I couldn't find anything decent on the internet.
The drawing is something that I made a few years ago when I couldn't find anything decent on the internet.
Last edited by robertea; Jul 23, 2024 at 03:47 PM.
Le Mans Master
Joined: Mar 2004
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From: Little Rock AR
If I were you I would try this bench test - You can try hooking up an ANALOG multimeter across the wires from the pickup and then rotate the shaft. I had to do that for my magnetic pickup points distributor conversion. I was unsure about the polarity of my 2 Chrysler pickup wires and the engine was doing crazy things with the timing just off-idle. Once I got the wave form right, it works like a charm. The meter needle will pulse "up and then down" as the reluctor passes the pickup points if your pickup is working. Rotate distributor shaft in opposite direction and the wave form will be "down then up" form, but in your case you already know which way to wire it, so no concern for you.
Digital readout meter is not good for this test.
Digital readout meter is not good for this test.
