I just replaced the engine-to-deck belt on a 36" Bunton Hydro. The manual says that there should be 1/8" clearance between the belt guide and the belt when the belt is in the engaged position. However, I noticed when it is running that the belt appears to make contact with the guide when it flops back and forth while it is turning on the pulley. The pulley and the shaft are not bent. Do I need more tension on the belt, or do I just need to increase the clearance on the guide. The contact between the belt and the guide appears to be slight and intermittent, but I am concerned that it will wear the belt over time. Thanks for your replies!