Mitsubishi S4Q, User Manual

Page: 34 / 174

34 / 174 Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004
ENGLISH
CYLINDER HEADS AND VALVE
MECHANISM
ENGINE MAIN PARTS
3. Installing cylinder head gasket
1) Make sure the machined surface of the
crankcase and the top of the pistons are
clean.
2) Put a new gasket on the crankcase with “UP”
mark side up. Make sure the locating dowels
enter their holes in the gasket.
4. Installing cylinder head
Put the cylinder head on the crankcase. Make sure
the locating dowels enter their holes in the cylinder
head.
5. Tightening cylinder head bolt
Tighten the cylinder head bolts to the specified
torque in the sequence shown.
Figure 40 Installing cylinder head gasket
CAUTION
Do not use any sealant.
Figure 41 Installing cylinder head
Locating
dowel
Locating
dowel
Figure 42 Cylinder head bolt tightening sequence
Front
Tightening torque
118 ± 5 N·m
(12.0 ± 0.5 kgf·m)
[87 ± 4 lbf·ft]