Gonna have to pull the head and find out what's wrong. Could be a bent valve.
IF there is no compression in one or more cylinder, you either have a bent valve, a burned valve or a bad head gasket. In any case, the head must be removed if you plan to repair the engine.
That is a loaded question. Is the valve bent or broken? Did it damage the head? Is the valves simply ticking? You are looking at cost between a couple of hundred to a couple of thousand.
Sounds like you bent the valve. You'll have to pull the head to fix it.
Remove the head and have the valve reseated or replaced.
bent valve, burnt valve, stuck valve, broken piston ring, cracked piston, cracked head, blown head gasket.
ive used a c-clamp valve tool , but the valve that was stuck actually bent my c-clamp tool . now im at a stand still how do i get this vlve out without wrecking my head Sorry to hear about your troubles. It sounds like you're going to have to cut the valve off as close to the tower as possible and drive the valve out with a hammer and punch. This will probably damage the valve guide, which will require taking the head to a machine shop. Best plan is to take the head off and give it to a qualified machinist.
Worn valve, bent valve, damaged piston and/or rings, head gasket failure.
If you have a bent valve slide, or valve, or valve casing, they usually wont move. Valve's and valve casings would prevent the valves from moving, while bent valve slides wont easily pull out. If you suspect a bent valve, valve casing, or slide, try cleaning and oiling it first, valves and slides can become stuck with the lack of valve oil or slide grease.
the valve bent because the piston hit it, due to a weak valve spring or over revving the engine
odds are if the valve is stuck open it is either bent(from over rev/valve float), or siezed in the guide(over heating). no easy fix sry
Burnt Valve, worn piston rings, blown head gasket, or cracked head.