I was pulling off the primary chain off my '69 MX6 Challenger and noticed that there was a "seam" on the inside over the front primary sprocket, which looked like it was intended to be bored out to accomodate something on some model other than mine.
After noticing the seam on the inside I noticed the same thing on the outside (which I'd never noticed before).
And actually the whole mystery started when I pulled off the primary cover and noticed that the end of the crankshaft had a large notch in it that looked like it was able to engage with something, but I wasn't sure exactly what it was. Tach drive?
Any ideas what model would have utilized that stuff? I've attached a couple photos to perhaps illustrated a little better what I'm talking about.
-Connal
Inside of Primary ("seam" is on the right)
Outside of Primary
Notch is on the sprocket on the left
After noticing the seam on the inside I noticed the same thing on the outside (which I'd never noticed before).
And actually the whole mystery started when I pulled off the primary cover and noticed that the end of the crankshaft had a large notch in it that looked like it was able to engage with something, but I wasn't sure exactly what it was. Tach drive?
Any ideas what model would have utilized that stuff? I've attached a couple photos to perhaps illustrated a little better what I'm talking about.
-Connal
Inside of Primary ("seam" is on the right)
Outside of Primary
Notch is on the sprocket on the left
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