Crank nut size?

[E.L Lane's 48]

Does anyone know what the size of the nut in the center of the harmonic balancer is? I am trying to persuade a sort of locked 218 into becoming one with movable parts. (Without a rebuild!)

thanks,

Chris.

[Don Coatney]

One thing we have learned on this forum is that not all crankshaft nuts are the same size.

[Niel Hoback]

The socket that fits mine is 1 13/16".

[Plymouthy Adams]

my 54 used a 1 11/16

[E.L Lane's 48]

Thanks for the help guys. That's at least a start.