Removing Crankshaft Timing Belt Sprocket?

what would be the best tool to use to remove this sprocket?i notice there's no room to get behind it,Anyone have any suggestions or know where i can buy the tool to do this job with? :banghead:

Removing Crankshaft Timing Belt Sprocket? Do you mean like the crank shaft pully? If so.. try an air gun, or a breaker bar. To keep the engine form turning over you could remove the flywheel inspection plate and place a screwdriver in the teeth of the flywheel and that should do the trick. If you are not talking about the crankshaft pully... then i have no clue.