Hi can you adjust engine valves when engine is hot?

It is possible, but you shouldn't.

Hi, 

you shouldn't do that or you will have incorrect results as the heat expansion of the rods will more in the hot state so you must do it when the engine is cold the first thing in the morning as it is cold where the inlet on 0.25 and the exhaust on 0.2 as the inlet of aluminum and the exhaust of steel using the filler.