RCU Forums - View Single Post - Evolution 58GT gas engine Ignition problem and CH Ignition conversion
Old 03-29-2013 | 07:43 PM
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earlwb
 
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From: Grapevine, TX
Default Evolution 58GT gas engine Ignition problem and CH Ignition conversion

I had bought this Evolution 58 GT gas engine at an estate sale and it looked great then. But later at home when I was checking it out more closely, I discovered that the power and LED cables or wires were missing. Somehow they got pulled out and off the ignition module. Of course a new ignition module would cost about $200, if I replace it with another one like it. Although I could probably go with a CH or RCexl ignition unit, I figured it is worth a shot to see if I can repair it or not. Thus I opened up the module to see what I have inside. Evolution is using a Valach ignition module rated at 4.8v for this engine.

Upon closer inspection, I can see what happened as the latex glue only partially covered the wires and thus didn't help protect the wires from being pulled on. So i cleaned off the glue and identified the pertinent PCB traces on the board inside. I'll have to solder the two ground wires to the metal case as it is too tricky to get inside to clear the solder off of the pad next to that small integrated circuit. But the LED wire pad and the +5V pad are doable though. The LED pad trace has a small resistor in series on it but the +5v pad on the top is more wide and it has a small thin trace on the bottom going to the small IC chip.

Anyway before I go tinkering with it, I wanted to see if anyone else agrees that those are where the wires go on the inside or not. I have provided pics of the top and bottom views of the board inside the ignition unit.

Thanks for looking.
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