Valve Timing - Inspect - Mitsubishi S6R Series Service Manual

5.15 Valve Timing - Inspect

The specified valve timing is automatically made, when
gears are assembled by aligning match marks and valve
clearance is adjusted to the specified value. To make sure,
check the valve timing as follows:
5.15.1 Valve Timing at Normal Valve Clearance (No
Thickness Gauge Insertion)
(1) Check that the valve clearance is adjusted to the specifi-
cation.
(2) Insert the thickness gauge, which has the same thick-
ness as the specified valve clearance, between bridge
cap and rocker arm. (valve clearance 0 mm)
(3) Turn the crankshaft in the normal direction little by lit-
tle, and find a position where thickness gauge is tightly
gripped (valve open position) and a position where
thickness gauge is released (valve closed position.)
(4) Verify the value to the specification.
5.15.2 Valve Timing When Valve Clearance is 2 mm
[0.08 in.] Valve Timing
Adjust the clearance to 2.5 mm [0.098 in.] for reliable
inspection, where the valve motion changes rapidly.
(1) Insert a thickness gauge of 0.5 mm [0.020 in.] between
bridge cap and rocker arm. (Valve clearance 2 mm
[0.08 in.])
(2) Turn the crankshaft in the normal direction little by lit-
tle, and find a position where thickness gauge is tightly
gripped (valve open position) and a position where
thickness gauge is released (valve closed position.)
(3) Verify the value to the specification.
(4) Readjust valve clearance to the correct value.
Chapter 7 ASSEMBLY OF BASIC ENGINE
Rocker arm
Standard valve clearance
Bridge cap
Valve Clearance 0 mm
Rocker arm
Valve clearance 2 mm [0.08 in.]
Bridge cap
Valve Clearance 2 mm [0.08 in.]
Thickness
gauge
0.5 mm [0.020 in.]
Thickness
gauge
7-33