hi,
im in the middle of rebuilding a friends cvh cylinder head, after his cam belt snapped. i have changed the valves, and lapped them in, and have put it all back together, lifters, rocker arms etc. But, this is the question, when i put the cam to the timing mark, number 2 exhaust valve is open by about 3mm. is this normall on a cvh head, or could there be other problems, like the cam for instance??
cheers harry