External or Internal Flywheel… need asst.

madhatta360 said
Yeah I’m just wandering now if they put a steel crank in because there are signs of bottom end being resealed so I know work has been done.

did the 10,000 day on stamp for JM 340 (can’t make out the letter) 4080 def later 1972

If they did use a steel crank and an external damper and flywheel they probably junked the crank.

That added external weight would be more than a steel crank needs and they’d have to take the weight out of the counterweights.

Unless of course they used Tungsten connecting rods. Or lead.