in the process of replacing my oil pump I'm trying to get this crank sprocket off. My first attempt was this morning, a friend of mine mig welded two 7/16ths bolts to opposite sides of the sprocket (between the teeth) and we used a pulley puller, but the bolt broke off taking one of the teeth with it. I went by home depot tonight and got a cobalt 5/16 drill bit, normal drill bit, and a 5/16-18 tap and some bolts, hopefully they will work better. Anyone have any tips for me, this is killin me!

 

Are you talking about the sprocket behind the timing cover that the timing chain is on? Or are you talking about the crank pulley that drives all the drive belts?

 

this *****

 

righty tighty.. lefty loosey... live by that. lol..

really though, mine came right off..

 

it doesnt spin with the key in there, did you remove the key first?