Preference should be given to the valve clearance specified on the engine fan housing sticker, if they differ from those in the "Tune-Up Specifications" chart.
The engine must be as cool as possible before adjusting the valves.
If the spark plugs are removed, rotating the crankshaft from position to position will be much easier.
There should be a red paint mark on the crankshaft 180ordm; opposite of the TDC mark for adjusting valves 2 and 4.
Always use new valve cover gaskets.