Maintenance
- 94 -
Check the inside of combustion
chamber for foreign substances, and
carefully mount the cylinder head
assembly in the block by aligning the
dowel pin with the dowel pin hole.
Be careful not to damage the cylinder
head gasket. If the dowel pin is not in
alignment, lift the cylinder head again
and then remount it.
CAUTION:
After tightening the cylinder head bolts, even at disassembling, the cylinder head gasket
should be changed a new one.
Coat the cylinder head bolts with engine
oil, and tighten in proper sequence to
the specified torque according to bolt
tightening order. (refer to the figure).
However, before tightening bolts, the side parallel degree between cylinder heads should be
adjusted.
<Tightening order>
(1) First stage : Tighten 1 ~ 2 threads with hands.
(2) Second stage : Tighten at about 6 kg
•
m with a wrench.
(3) Third stage : Tighten at rotating angle method 90° with a wrench.
(4) Fourth stage : Tighten at rotating angle method 90° with a wrench.
(5) Fifth stage : Tighten at rotating angle method 90° with a wrench.
(6) Sixth Stage : Finally, tighten at rotating angle method 60° with a torque wrench.
However, all bolts are tightened simultaneously by above steps.
Coat the push rod with engine oil and insert it into the push rod hole.
418 6
5 3 2 7
418 6
5 3 2 7
418 6
5 3 2 7
ED4OM031
Front side Rear side
Specification
M14 × 1.5 × 146
Torque
1st Tightening : 6 kg
•
m
2nd Tightening : 90
°
3rd Tightening : 90
°
4th Tightening : 90
°
Final tightening : 90
°
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