The engine turns over the keyway on the flywheel is not broken. I was asked by a friend to fix it after he heard a loud bang. Just spins and valves don't move on either side. Camshaft broke? Any help appreciated!!!
The engine turns over the keyway on the flywheel is not broken. I was asked by a friend to fix it after he heard a loud bang. Just spins and valves don't move on either side. Camshaft broke? Any help appreciated!!!
The engine turns over the keyway on the flywheel is not broken. I was asked by a friend to fix it after he heard a loud bang. Just spins and valves don't move on either side. Camshaft broke? Any help appreciated!!!
have you made sure pistons are moving up and down in the cylinder ? if you have both rocker covers off and push rods are not opening / closing any of the valves , and rocker stud bolts are in place as are the rockers , you will need to remove engine from chassis , drain oil, remove sump plate and check crank pinion that drives the camshaft , it may be split , broken or if thats ok it may be a broken cam shaft , while in there check con-rod bolts are tight and everything else is ok ie governor , counter balancer ,just make sure you find what the cause is ? because it may be a case of replacing crank pinion and camshaft along with 0.015" sump gasket and pto oil seal and reassemble and refit and refill with oil and replace oil filter, reset in /ex valve clearance on both cylinders , adjust govenor and let her rip