1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Heart Transplant Successful! Well....almost

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Old 05-11-02, 08:22 PM
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Rotary Freak

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Lightbulb Heart Transplant Successful! Well....almost

In case you didn't know, I had an exciting experience driving home from school one day - an apex seal cracked on the rear rotor of my 85 12A. I decided to order a new engine and install it myself. Anyway, after many weeks of hard work, I started the car up today. With a cloud of smoke and a roar, it came back to life (after messing with the idle mixture screw a tad). It drives great and sounds awesome!

The problem is that the tachometer doesn't work. It did work until I parked it for the engine transplant. Any ideas? TIA.

BTW - Thanks to all who have helped me get my car back on the road.
Old 05-11-02, 08:28 PM
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make sure your wiring is hooked up correctly. you're probably not getting a signal.
Old 05-11-02, 08:32 PM
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When you speak of wiring, which wiring? Where is it located and where does the signal come from? Thanks Jeremy.
Old 05-11-02, 08:38 PM
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Trailing coil.
Old 05-12-02, 12:11 AM
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Did you use the dizzy off the old engine or did the new engine come with one? If you're using a new dizzy then it probably has a dead trailing ignitor.
Old 05-12-02, 12:59 AM
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i ended up with the same problem when i did my body swap. wish i knew what it was...
Old 05-12-02, 07:32 AM
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Ok, I'll check the coils out. The connections do look a little rusty, but then again, it was working prior to when I parked it.
I'm also using the old distributor that was on the old engine. I'll check out the contacts on the ignitors and spray some contact cleaner on them.
Old 05-12-02, 07:44 PM
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Corrosion on cables. Tach now works fine.
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