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Inspection and Adjustment of Valve Clearance
Service standards
Location
—
Valve clearance (When engine is cold)
5
A
Maintenance item
Inspect and adjust the valve clearance while the engine is cold in the
following way.
"1, 6"
[Inspection]
• Crank the engine to move No.1 or No.6 piston to top dead center, and
1
align stamped marks "1, 6" on the flywheel with pointer 1 on the
flywheel housing.
NOTE
The cylinder whose push rod is not pushing up the inlet/outlet
rocker is the one whose piston is at top dead center.
12406
• Measure valve clearance A when either No.1 or No.6 piston is at top
dead center in accordance with the following tabulated sequence of
A
each valve.
Valve
arrangement
No.1 piston at top
2
dead center
No.6 piston at top
dead center
06205
NOTE
Be sure when taking measurements using feeler gauge 2 that
some resistance is felt when inserting the gauge. If the gauge can
be inserted freely without any resistance, an accurate measure-
ment cannot be obtained.
• If the measured value deviates from the limit, adjust as follows:
[Adjustment]
4
3
• Adjust valve clearance A so that feeler gauge 2 encounters some
resistance when it is inserted. Do this by loosening lock nut 3 and
turning adjusting screw 4.
• After adjusting, tighten adjusting screw 4 using screwdriver 5 and
tighten lock nut 3. Reinspect valve clearance A using feeler gauge 2.
2
06206
Standard value
0.4 {0.016}
Piston No.
1
In-
Ex-
In-
take haust take haust take haust take haust take haust take haust
Unit : mm {in.}
Limit
—
2
3
4
Ex-
In-
Ex-
In-
Ex-
In-
11
Remedy
Adjust
5
6
Ex-
In-
Ex-
11-9
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