5.3. Adjustment of Valve Clearance 5.3.1. General information The valve clearances are to be adjusted at the times of the following situations. When the engine is overhauled and the cylinder heads are disassembled. When severe noise comes from valve train. When the engine is not normally operated, even though there is no trouble in the fuel system. The valve clearance of the cold engine are as follows. - Intake valves : 0.3 mm - Exhaust valves : 0.3 mm 5.3.2. Method of adjusting the valve clearance 1) Loosen the lock-nuts using a ring 1 spanner. 4 2) Insert a thickness gauge of 0.3mm between valve stem and rocker arm 2 3) Turn the adjusting bolts using a 3 .
4 1 screw driver until the gauge can be 3 pulled out with some restriction. 2 4) After the adjustment fix the adjusting bolt EAOO4014 not to rotate and tighten the lock-nut at the same time. 5) Measure the clearance one more time and if necessary adjust again. - 106 - MAINTENANCE AND CARE