I just wanna say you guys made a believer outta me! Look at the head bolts, they have Liquid wrench the entire length. That spray, hammer every time you walk by a wait a few days really works! Head bolts all seemed to be the same tightness. 2 whacks with the heel of my hand and they came loose. Put a pick under the head gasket & it popped right off. Exhaust valve has a lot of debris around it. Cylinder walls are smooth, no nicks or gouges. The mule pulley guard nut came off with the same technic. Pulleys spin freely. I don't understand why the belt wouldn't come thru them. Haven't tried the tension adjuster yet. Found the regulator mounting bolts are loose.