Gravely Model L Crank Pin


Description for the
Gravely Model L Crank Pin

This crank pin is located between the fly-weights of the model "L" crank shaft. The connecting rod runs on this pin. This pin is hollow creating an oil reservoir for the crank bearing. The cavity is closed off with a "spreader bolt" that expands the outer ends of the crank pin in the fly-weights to hold them in place.

This item is made of grade 4140 chrome-moly steel.

The crank pin is hardened, then ground on the close fit areas, plus the rod bearing surface is polished to a fine micro finish. The stock standard size of the rod bearing journal is 1.500".


Through our experience with these "L" engines, we found that many of these crank pins vary in size on both the bearing journal and the fly-weight mounting. It would be wise to carefully measure for your particular needs. We have decided to hold out a few of these crank pins in a semi-finish condition to custom grind to order.

Thank you for looking to Cogan Valley Machine for your quality Gravely after-market parts.

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