DE08TS Diesel Engines Maintenance
Cylinder head
1. Blow the bolt holes of cylinder block with a com-
pressed air and remove the foreign matter.
2. Clean the head gasket contact surface thoroughly.
However, be careful for the foreign material not
to enter into the combustion chamber.
3. Assemble the new head gasket by aligning the
holes with dowel pins of cylinder block with “TOP”
mark facing upward.
4. Check the inside of combustion chamber for for-
eign 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 gas-
ket. If the dowel pin is not in alignment, lift the
cylinder head again and then remount it.
After tightening the cylinder head bolts, even at
disassembling, the cylinder head gasket should
be changed a new one.
5. 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 fig-
ure).
<Cylinder head bolts>
6. However, before tightening bolts, the side parallel
degree between cylinder heads should be adjust-
ed.
<Tightening order of bolts by steps>
(1) First stage : Coat the bolts with engine oil.
(2) Second stage : Tighten 1 ~ 2 threads with
hands.
(3) Third stage : Tighten at about 6 kg.m with a
wrench.
(4) Fourth stage : Tighten at rotating angle
method 180° with a wrench.
(5) Fifth stage : Finally, tighten at rotating
angle method 150° with a
torque wrench.
However, all bolts are tightened simultaneously by
above steps.
7. 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
EDM2097I
WARNING
WARNING
EA9M3022
WARNING
61
Type 2
Specification
M14B1.5B150
Torque
6 kg
•
m +180°+150°
(Angle torque)
TY
10.9T
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