I have a friend with a Ducati Diana Mark III that suffered extensive engine damage because a moron globbed silicone on the case instead of using the appropriate gasket, and chunks of silicone broke away and led to oil starvation to the main bearings. By the time the previous owner realized something was wrong, the bearings were shredded, sending hardened steel contamination throughout the motor.
My question is whether the engine should be rebuilt, replaced, or if the bike should be sold as is. My friend has the skill to do the work, but parts won't be cheap. I'm willing to foot the bill just to motivate him to get back in his shop. COVID-19 has made the last two years very hard for him.
Cosmetically, the bike is in very good condition, with all original parts and paint. Other than the engine damage, everything is fine. I don't think it's a stretch to see my friend's bike approach the condition of this one once it's repaired.
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My question is whether the engine should be rebuilt, replaced, or if the bike should be sold as is. My friend has the skill to do the work, but parts won't be cheap. I'm willing to foot the bill just to motivate him to get back in his shop. COVID-19 has made the last two years very hard for him.
Cosmetically, the bike is in very good condition, with all original parts and paint. Other than the engine damage, everything is fine. I don't think it's a stretch to see my friend's bike approach the condition of this one once it's repaired.

1966 Ducati 250 Mark III | T149 | Monterey 2021 | Mecum Auctions
1966 Ducati 250 Mark III presented as Lot T149 at Monterey, CA