I'm familiar with the basics of how the engine works. About 30k miles ago, my timing belt broke, and threw a piston into a valve. The valve was bent, and I went in and replaced that one valve. I lapped the other 7 valves and replaced all the rubber seals while I had the head off.

My question is that valves are made out of metal. I didn't think you could "burn" metal. What happens to the valve when it gets to hot? <img src="/forums/images/graemlins/confused.gif" alt="" />

'89 Amigo, 2wd
2.3L