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3
4st 4/5/6 2011
12) Inspection and Adjustment of Valve
Clearance
· Perform inspection and adjustment of valve
clearances when engine is cold.
· #1 Set piston to top dead center of compression
stroke.
1. Remove cylinder head cover, fuel pump and spark plug.
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11
11
a
2. Align locating marks 1 of flywheel and crankcase with each
other.
3. When fuel pump is removed, cam shaft can be seen. If
projection 2 of cam shaft can be seen, it can be known that
the piston is at top dead center.
4. The piston is at top dead center of compression stroke when
locating marks 1 of flywheel a and cylinder that are found
on the starboard side of crank case are aligned with each
other.
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