[Rich Biebel]

Sean I set the valve lash with a .004" feeler gauge. The studs tend to loosen up from the heat. I always check the exhaust side studs to make sure their tight. The lash gets tighter as you lock the locknut.....Very tedious to get them right and tight....They seem to run much better with the lash set to .004" and I just advise my steady regular customers that we need to check the valve lash every other time I do a full service on them which is at 500hrs....assuming their machines are working well....

The heat transfer from the valves to the springs/retainers etc. is usually noticeable on the exhaust side just by the color of the metal of those parts.....

The exhaust stud can loosen up and a pushrod pops out and maybe damage a rocker......all this from the heat.....