ok a while back my chain broke and broke the case by the shifer,no biggy got it welded.but a month ago my piston shattered out of nowhere,and now that i tore it down,but im ready to split the cases,waitng on flywheel puller.but now all the clutch and everything is out and the crank spins nice and freely,but the counterbalancer is getting stuck,could there be pieces in there,and could that cause the piston to shatter due to the extar starin to spin the counter balancer.