I had a senior moment during timing belt replacement on '98 2.3L and forgot to remove a hex key I used to lock the rear balance shaft. I had the new timing and balancer belts installed and was turning the crankshaft one turn counterclockwise after everything was looking good. But after about 1/4 turn I figured out the hex key was still in access hole. After panicking I tried to pull the hex key out but it was jammed, so I barely turned the crank to free up the hex out and it snapped in half. Pulled out the long piece and it looked like it broke cleanly. I used a small magnet pickup and got the broken piece out. Both the long piece and the broken piece still look straight. The balance shaft is turning freely.

Last night I removed the belts and started over with the timing belt. Aligned the camshaft and crank TDC marks with no problem but after the timing belt was installed when I checked TDC it looked like the camshaft timing marks were off by 1/16. Today removed the timing belt and tried to set TDC on camshaft and think I'm in big trouble. I can turn the camshaft about 1/3 turn and it binds up. If I use slight force to turn the camshaft it feels like something is hitting and will not budge so I stop. Any ideas how bad this could be and what the fix is if any besides the junk yard? The crank shaft is turning smoothly.