F510 & F525 Cylinder Head and Valves – CHECK VALVE CLEARANCE
NOTE: Valve repair changes valve clearance. Only check and adjust valve clearance when engine is cold.
1. Turn crankshaft until piston is at highest position in compression stroke, top dead center (TDC).
2. Measure clearance.
3. If necessary, adjust clearance to 0.15 mm (0.006 in.).