So I pulled the valves out of the other head, and found more problems. The exhaust valve was very difficult to remove on one cylinder, and I found that it was bent and the valve guide had dropped almost an inch. I hammered the valve guide back in place and peened it a bit to hopefully keep it there. IT didn't move easily.

 

So I need an exhaust valve now. I am wondering what the symptoms of this might be? Perhaps the valve wasn't closing all the way could this be realted to the white smoke?

 

Any help would be appreciated

with all the heating up and cooling off i would get the guide fixed right, it'll probally drop again and bend your new valve

He's right - valve guides typically have to be knurled in order to stay in place. I wouldn't even bother with it - just get another head - they are a dime a dozen.

 

GD

agreed, that's a waste of time on such an involved job. i'd just get some good components (even if used) and install those. there's probably folks on this board with these parts crawling all over the shed that they're tripping over. just ask for some used valves, guides, and components. i have dozens of them, but not the time. i'm sure you'll get a hit in the parts wanted forum.

The guide is junk for no other reason than that bent valve moving up and down in it has wallowed it out.

 

Just take the head to a machine shop and have a new guide pressed in.