93 Eagle Talon 2.0L DOHC..... Buddy of mine broke his timing belt going down the road. He did not know it at the time and he kept trying to start the car. We replaced the timing belt and the car would not fire up. We figure maybe we lined the no. 1 sp plug TDC on the exhaust stroke instead of on the compression stroke, so we took the belt back off and turned the crank over to TDC on the no. 1 sp plug. Still no fire. So, my question is, do you think he messed the valves all up when he kept trying to start it when the timing belt was off? We lined everything up right, just as the book said. The only questionable move we made was getting the no. 1 sp plug TDC on the compression stroke (but to eliminate that possibility, we tried it both ways).
If the belt was off of the DOHC's at the time he kept trying to crank it when the belt was off, how would that mess up the valves?