3. MAINTENANCE
78
·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.
Caution:
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).
<Cylinder head bolts>
Type 1 Type 2
Specification
M14×1.5×146
M14×1.5×146
Torque 24.5 kg.m
6 kg.m + 90° + 90°
+ 90° + 60°
· However, before tightening bolts, the side parallel
degree between cylinder heads should be adjusted.
<Tightening order of bolts by steps>
(1) First stage
(2) Second stage
(3) Third stage
(4) Fourth stage
(5) Fifth stage
·Coat the push rod with engine oil and insert it into the push rod hole.
TY
12.9T
DL08
: Tighten at rotating angle 90° with a wrench.
: Tighten at about 6 kg.m with a wrench.
: Tighten at rotating angle 90° with a wrench.
: Tighten at rotating angle 90° with a wrench.
: Finally tighten at rotating angle method 60° with a torque wrench.