V8 Crank Pulley Nut Threads

[Jason M.]

Can anyone tell me what size tap is required to tidy up the threads in the snout of my Mercury crankshaft? Thank You...

 

[Karl Wolf]

I'll measure one tomorrow, what happened to them?

Karl

 

[Mart]

5/8 - 18 UNF

Mart.

 

[Jason M.]

Thank You. I guess I should have called it a bolt not a nut.