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V7 Sport catastrophic failure

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Antietam Classic Cycle:

--- Quote from: Missionguzzi on September 17, 2025, 04:09:43 PM ---Joe W, I found a complete set of gears identical to the broken ones.  I believe the cam gear is the "small hole" type, based on pictures I could compare. And the gear that broke is also the small hole type.  I guess they weren't immune to defects.
If possible, could you elaborate on what's different about the crank gear?  It seems like that would have to be a fixed shape, considering the slot for the woodruff key.  If it's different, what should I look for?  Thanks again for all the help.

--- End quote ---

The V7 Sport crank gear is different than the Ambo/Eldo one. On the Ambo/Eldo it has a "snout" that protrudes through the timing cover, the seal runs on the "snout" and the gear is secured by a large hex nut on the end of the crank. On the V7 Sport, none of it protrudes through the timing cover, the seal runs on the alternator rotor, and the gear is secured by a ring nut and lock washer.

Missionguzzi:
Charlie M., thanks for clarifying that detail.  Sure as hell, the set I ordered has the snout on it.  I'll have to determine whether I can re-use the old crankshaft gear (I know that's not recommended) or find a good machine shop which could mill off the snout to the correct dimension.  When I was still working, I had a good machine shop in my manufacturing plant.  Unfortunately, I've moved and no longer have that capability.  The V7 Sport was a fine motorcycle, but an odd duck in the goose family.  Too many unique parts and features to deal with a half-century later.

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