<Cylinder head bolts tightening
order>
1) First step: Coat bolts with engine oil.
2) Second step: Tighten temporarily 1 ~
2 threads by hands.
3) Third step: Tighten to about 8 kg.m
with a wrench.
4) Forth step: Tighten to 15kg.m with a
torque wrench.
5) Fifth step: Rotate 90
˚
by rotation
angle method.
6) Sixth step: Finally tighten additionally
rotating 90
˚
.
*
Standard length of bolt and use limit:
from the head seat face to tip
•
Take care for the foreign material not to get into the cylinder head suction passages.
9.3.19. Nozzle
Put the new seal ring in nozzle hole of
the cylinder head and after inserting the
nozzle assembly, tighten it to assemble
However, coat the nozzle outer part with
the stuck preventing agents and
assemble it.
- 103 -
4
2
1
6
5
3
EFM2077I
Bolt No. Standard length Use limit
3, 6
168 mm
171 mm
2, 4, 5
144 mm
147 mm
1
109 mm
112 mm
EFM2090I
