I have a 1961 261 for a 46 chevy 1/2 ton. I removed the flywheel,clutch and bellhousing to install a 46 rear mount bellhousing. When installing the flywheel had it align but still pushed in 2 of the 3 pins. Now it won't turn. I removed the spark plugs. Could the pins keep it from rotating? How do I get the pins back out?