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6.2. Checking and Adjusting Valve Clearance
The valve clearance should be checked
when necessary.
On new or overhauled engines and also
after removing a cylinder head, the valve
clearance should be checked after 10 to
20 hours operation.
The valve clearance should be adjusted so
that the feeler gauge can be removed
between the valve stem and the rocker
arm with slight resistance. Adjustment is
made with the adjusting screw after
releasing the lock nut.
Intake
valve
Exhaust
5
valve
6
7
8
Flywheel
NOTE : No. 1 Cylinder is located at the side where cooling water pump was installed.
6.2.1. Valve clearance adjust procedure
•
After letting the #1 cylinder's piston
come at the compression top dead
center by turning the crankshaft, adjust
the valve clearances.
: As the right figure, Correspond the
O/T point on flywheel to left concave
mark on flywheel housing and then the
#1Cylinder will be TDC(Top Dead
Center).
Cooling fan
Exhaust
valve
1
Intake
valve
2
8
7
6
3
5
4
3
2
4
1
1. Exhaust valve
2. Intake valve
3. Feeler gauge
6
1
7
2
8
10
3
9
8
7
9
6
4
5
4
3
10
2
5
1
- 40 -
2
3
1
7
1
8
2
9
12
3
11
10
10
9
4
8
7
6
11
5
5
4
3
12
2
6
1
EC8OM011
ED1OM150
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