Valve Clearance Inspection
VALVE CLEARANCE INSPECTION1. Measure the valve clearance as follows.
1) Turn the crankshaft clockwise so that the No.1 piston is at TDC of the compression stroke.
2) Measure the valve clearance at A in the figure.
^ If the valve clearance exceeds the standard, replace the tappet.
Note
^ Make sure to note the measured values for choosing the suitable replacement tappets.
Standard valve clearance [when cold]
IN: 0.22-0.28 mm (0.009-0.011 in)
EX: 0.27-0.33 mm (0.011-0.012 in)
3) Turn the crankshaft 3600 clockwise so that the No.4 piston is at TDC of the compression stroke.
4) Measure the valve clearance at B in the figure.
^ If the valve clearance exceeds the standard, replace the tappet.
Note
^ Make sure to note the measured values for choosing the suitable replacement tappets.
Standard valve clearance [when cold]
IN: 0.22-0.28 mm (0.009-0.011 in)
EX: 0.27-0.33 mm (0.011-0.012 in)