User Manual
CYLINDER HEAD ASSEMBLY EM -45
AB C
SUDEM7123L
3. Checking and adjusting of valve clearance
NOTE
Check and adjust the valve clearance while the engine
is cold.
1) Crank the engine with the cranking handle and
align the needle to "0" position of crankshaft
damper pulley (side marked with No. 1 through
4). Or align it to the "0" position of crankshaft
damper pulley (side marked No. 2 to 3). (This is
at the TDC of comopression stroke of cylinder
No. 1).
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SUDEM7124L
2) AttheTDCofcompressionstrokeofcylinderNo.
1, check and adjust the clearance of the valve
with "O" mark at the following table. And then,
turn the crankshaft in one turn to check and ad-
just the valve clearance of remaining valves with
"X"mark.
Cylin-
der
No.
1 2 3 4
Valve
In-
take
Ex-
haust
In-
take
Ex-
haust
In-
take
Ex-
haust
In-
take
Ex-
haust
TDC
of
No.1
○ ○ ○ ○
TDC
of
No.4
× × × ×
3) Meas
ure the clearance between rocker and valve
cap u
sing the thickness gauge.
a. If th
e valve clearance exceeds the reference
valu
e, loosen the lock nut (2) and adjust the
clea
rance with thickness gauge by turning
the a
djusting screws.
b. Afte
r the valve clearance adjustment, fix the
adju
sting screw using the screw drive (3) and
fast
en the lock nut securely.
NOT
E
Make sure to check whether the valve clearance s at-
isfies the reference after valve c learance adjustme nt.
2
3
1
S
UDEM7125L