I confirmed that the timing belt went bad. I took a picture and attached to the thread. Notice a bunch of teeth missing on the timing belt right on the crank's camshaft belt drive gear.
I am able to rotate (360 degrees) the crank with ease using a ratchet. I hope that means the valves are not bent. My car has the eccentric roller timing belt arrangement (1982-1986).
Any tips on checking the valves without removing the head?
I rotated the camshaft sprocket a little bit. About a 1/4 turn each way. It feels harder to rotate than the crank, but not so bad. I would expect a vent valve would make the camshaft sprocket really hard to rotate. I did not rotate the camshaft a full cycle because I'm afraid to cause valve damage.
Is there a way to setup the crankshaft so that I can freely rotate the camshaft without risking valve damage?
Thanks,
Santos