WOW. That is odd. I have never seen one do that before, especially with the timing belt good. Was the motor in time when you took it apart? Was there a failure of the key in the crank by chance? All I could think of would be excessive advance of the crank. Since the piston " chases" the exhaust valve if the crank were advanced too far it could hit them. Im not real sure, that is weird. Time for a yard motor and try again. Lol
UAA TECK PRO
February, 6, 2010 AT 8:47 AM
This is very strange, I saw this exact issue just yesterday, even the exact photo! Really the same one. I am consulting with Jose Q, on a reason for this most odd occurence. I was researching when I found this! I will find an answer and report back later.