Hole size in crankshaft end

[Steve Ruddy]

What size bolt will fit in the crankshaft end. I'm trying to pull and install the fan drive pulley. Can't find any tutorials doing a search.

[Cub-Bud]

If I am not mistaken, a 1/2 bolt is the size that goes in the crank.

[John *.?-!.* cub owner]

It's 1/2 x 13. If you will do a search for pulley removal, there are several notes aobut removing and reinstalling. Do NOT pull directly on the pulley flange, it WILL break.