An Interfernece engine actually will keep running if timing belt/chain/tensioer fails and will cause engine damage. Non-Inteference motors are set up to shut down to avoid damage usually by the distributor and crank position snesor beign out of phase.
You have an actual mechanical contac when turning by hand that will be worse if oyu try to run it and the vsvle stretes.
There must be some damage from the first timiing chaing and tensioner failure.
I am guessing the valves are bent and need replacement.
Lucky you have a bore-scope you can use, they are very helpful.
Let me know how things go.
Thursday, August 25th, 2011 AT 10:07 PM