can you just use the ones that you see at the hardware stores or do u have to buy the expensive ones??? ive seen the ones at the HW store for like $0.24 and theres some in performance catalogs for like $10.00

 

what are the keys doing?

the only diff i can think of is in the metal alloy. types used for high loads are generally made from a steel with more nickel content to make them tougher. if it's just for a pulley (not supercharger) then the hardware store types should work fine. crankshafts should get a tougher key though.

JB

 

yea these are for the TWO keyways in the crank! one for the crank timing gear and the other for the harmonic balancer!

 

I would say go with the one you know is right. We had to replace them on our sea-doo once after it locked up and broke them. And plus, the ones at the hardware store might be a little different size that you can tell by looking at them.

 

well their definately the right size thats not my concern! my concern is WILL they be strong enough or should i go with something different?

 

I installed a keyed hub on my crank snout when I replaced the cam recently. I just used a key that fit. The hub it press fit anyway and I don't have a blower.