Originally Posted by TheLast5.0
Cam gear bearing? Timing cover is off, distributor off and when i tightened the cam it doesn't turn the cam. The cog behind it isn't turning. Did the bearing seize?
With the chain still on you will not be able to turn it.
With the valve train still in place, it will be difficult to turn if you can turn it at all.
With everything disconnected and it won't turn, then likely a bearing has seized.