pulled the head and found two little pieces of metal in the cylinder. they werent big enough to make the sounds we heard, at least thats what we think, probably like a really small sowing needle, but about 1/4 inch long a piece. we also found some damage around where the valves seat and think the valves are bent, havent pulled them yet. going to replace the valves and get a head job. still need to inspect more of the motor though.
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