Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 65
CYLINDER HEAD AND VALVES
TSB Revision
ENGINE OVERHAUL <3.0L ENGINE>
11D-31
C YLIN D ER H EA D A N D VA LVES
REMOVAL AND INSTALLATION
M1113006900044
Required Special Tools:
MD998051: Cylinder Head Bolt Wrench
MD998772: Valve Spring Compressor
MD998774: Valve Stem Seal Installer
AKX00644
108 ± 5 N·m
80 ± 4 ft-lb
↓
Back off
↓
108 ± 5 N·m
80 ± 4 ft-lb
1
5
2
6
7
13
3
14
9
11
16
17
19
12
15
10
21
18
22
20
8
4
N
N
N
N
N
N
N
N
AB
APPLY ENGINE OIL
TO ALL MOVING
PARTS BEFORE
INSTALLTION.
REMOVAL STEPS
<<A>>
>>D<<
1. CYLINDER HEAD BOLT
>>D<<
2. WASHER
3 CYLINDER HEAD ASSEMBLY
4. CYLINDER HEAD GASKET
<<B>>
>>C<<
5. RETAINER LOCK
6. VALVE SPRING RETAINER
>>B<<
7. VALVE SPRING
8. INLET VALVE
<<B>>
>>C<<
9. RETAINER LOCK
10.VALVE SPRING RETAINER
>>B<<
11. VALVE SPRING
12.EXHAUST VALVE
>>A<<
13.VALVE STEM SEAL
14.VALVE SPRING SEAT
>>A<<
15.VALVE STEM SEAL
16.VALVE SPRING SEAT
17.INLET VALVE GUIDE
18.SNAP RING
19.EXHAUST VALVE GUIDE
20.INLET VALVE SEAT
21.EXHAUST VALVE SEAT
22.CYLINDER HEAD
REMOVAL STEPS (Continued)
CYLINDER HEAD AND VALVES
TSB Revision
ENGINE OVERHAUL <3.0L ENGINE>
11D-32
REMOVAL SERVICE POINTS
<<A>> CYLINDER HEAD BOLT REMOVAL
Using special tool MD998051, loosen the cylinder head bolts.
Loosen each bolt evenly, little by little, by two or three steps.
<<B>> RETAINER LOCK REMOVAL
1. Set special tool MD998772 as illustrated to compress the
valve spring. Remove the retainer locks.
2. Relieve the spring tension and remove the valve, retainer,
spring, etc.
Store removed valves, springs and other parts, tagged to
indicate their cylinder number and location for assembly.
INSTALLATION SERVICE POINTS
>>A<< VALVE STEM SEAL INSTALLATION
1. Install the valve spring seat.
CAUTION
The valve stem seal for the exhaust side is different than
the intake side. They are identified by their respective
rubber colors. When installing, do not confuse them.
CAUTION
The special tool must be used to install the valve stem
seal. Improper installation could result in oil leaking past
the valve guide.
2. Using special tool MD998774, install a new stem seal to the
valve guide.
AKX00616
MD998051
AB
AKX00617
MD998772
AB
AKX00642
EXHAUST
RUBBER COLOR:
GRAY
RUBBER COLOR:
GRAY GREEN
INTAKE
AB
AKX00618AB
MD998774
CYLINDER HEAD AND VALVES
TSB Revision
ENGINE OVERHAUL <3.0L ENGINE>
11D-33
>>B<< VALVE SPRING INSTALLATION
Install the valve spring with its ID color painted end (larger pitch
side) upward (toward the valve spring retainer).
>>C<< RETAINER LOCK INSTALLATION
CAUTION
Do not compress the valve spring excessively. It can
damage the stem seal.
1. Set special tool MD998772 as illustrated to compress the
valve spring. Install the retainer locks.
2. Relieve the spring tension and check that the retainer locks
are seated correctly.
>>D<< CYLINDER HEAD BOLT INSTALLATION
1. Insert the cylinder head bolt with a washer attached into the
bolt hole in the cylinder head. The washer must be set with
the "rounded shoulder" side upward.
AKX00718
SPRING SEAT
SPRING
RETAINER
IDENTIFI-
CATION
COLOR
STEM SEAL
AB
AKX00617
MD998772
AB
AKX00657
CYLINDER HEAD BOLT
ROUNDED
SHOULDER
WASHER
CYLINDER
HEAD
AB
CYLINDER HEAD AND VALVES
TSB Revision
ENGINE OVERHAUL <3.0L ENGINE>
11D-34
2. Tighten the cylinder head bolts to the specified torque in the
sequence shown.
Tightening torque: 108
±
5 N
⋅
m (80
±
4 ft-lb)
3. Loosen all bolts fully.
4. Retighten the cylinder head bolts to the specified torque in
the sequence shown.
Tightening torque: 108
±
5 N
⋅
m (80
±
4 ft-lb)
INSPECTION
M1113007000044
CYLINDER HEAD
1. Check the cylinder head gasket surface for flatness by using
a straightedge and feeler gauge in the directions of A
through G shown in the illustration.
Standard value: 0.03 mm (0.0012 inch)
Limit: 0.2 mm (0.007 inch)
2. If it exceeds the limit, correct to meet the specification.
Grinding limit: *0.2 mm (0.007 inch)
*Includes combined with cylinder block grinding.
Cylinder head height (specification when new):
120 mm (4.7 inches)
VALVE
1. Check the valve seat contact. The valve seat contact should
be uniform at the center of the valve face. If incorrect, reface
using a valve refacer.
2. If the margin is below the limit, replace the valve.
Standard value:
<Intake> 1.0 mm (0.04 inch)
<Exhaust> 1.2 mm (0.05 inch)
Minimum limit:
<Intake> 0.5 mm (0.02 inch)
<Exhaust> 0.7 mm (0.03 inch)
AKX00673
MD998051
TIMING BELT SIDE
AB
AKX00733
AKX00619
MARGIN
VALVE SEAT
CONTACT
AB
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