Clutch basket / pulley set screw is stuck on
 

Hello, Does anyone have any ideas on how to remove the set screw that locks the pulley onto the crankshaft on my cub cadet 108 (stock engine). It won't budge and I am pretty sure i have stripped the opening that the hex key goes into. I have also tried removing it by chiseling the top of the screw counter clockwise, but the screw still won't budge. Below is a picture of the screw in it's current state. I don't want to go any further without some input... Lots of WD40 has been applied over the last couple of weeks. Thanks.

IMHO, WD40 is worthless. I much prefer penetrant "PB Blaster". Works so much better. Try that and see what happens.

IF....the PB Blaster was unsuccessful and this were mine, I would dig out my Oxy/Act torch and heat that hub up to loosen the rust bond. That should set that screw free.

Try some heat!

WD40 isn't the best of penetrating oil. Did you try Blaster or Gibbs. I'm sure others will chime in with their favorite.

if/when you get the screw out, don't expect the ass'y to just fall off.
That may be another whole battle in itself.
I think Jeff makes a puller/tool to ease one through that issue.
Good luck!
Just one more GOOD reason, not to leave this equipment set out in the elements.

Insert a pin punch that just fits in the hex where the allen wrench fits .
Then whack it smartly.
That shocks the set screw, & usually loosens it.
WD 40 is a water dispersant not a penetrating oil as mentioned.
If you have stripped the hex, try a metric allen wrench, hopefully you have not split it yet.
A new allen wrench is recommended as you need all the grip you can get.
If that all fails, heat from a torch played on the area around the screw will usually help, last ditch effort is drilling it out

Thank you all for taking the time to reply. I will definitely get some PB Blaster next time that I am in town. If that doesn't work, then I will try my propane torch. I have never used the heat approach to remove a stuck bolt, so this will be something new for me to try. I will post a reply once I get the screw out. Ross

Thank you too ol'George, I'll try your recommendations before I resort to the heat as I'm a little leery of starting a fire in the basement.

Ok, I applied the propane torch for about two minutes and the screw is still stuck. Sorry about my previous post as I can see now that I will not start any fires if I am careful. Anyway, if I end up having to drilling it out, what type of drill bit will I have to use. The last time I resorted to drilling out something (a spirol pin), it was pure hell and I didn't make an inch of progress on it. The metal on these tractors is very hard.

See if you can find "KROIL" . It's the best penetrant I'll found. A 50/50 mixture of acetone and ATF (yes, automatic transmission fluid) works great but is flammable

Looks like enough is sticking out to weld a bolt to it.