Mitsubishi 4G1 Service Manual page 266

11 D-34
out of
square
Painted end
I
VALVE SPRING
Measure the free height of the spring and, if it is smaller
than the limit, replace.
Standard value: 50.9 mm (2.004 in.)
Limit: 49.9 mm (1.955 in.)
ree
Measure the squareness of the spring and, if the limit is
exceeded, replace.
Standard value: 2" or less
Limit: 4"
1 EN0264
VALVE GUIDE
(1) Measure the clearance between the valve guide and valve
stem. If the limit is exceeded, replace the valve guide or
valve, or both.
Standard value:
Limit:
1 EN0279
REASSEMBLY SERVICE POINTS
VALVE STEM SEAL INSTALLATION
(2) The special tool must be used to install the valve stem seal.
Improper installation could result in oil leaking past the valve
guide.
Caution
Do not reuse removed valve stem seals.
VALVE SPRING INSTALLATlON
arm side.
(1) The valve spring, if excessively compressed, causes the
bottom end of retainer to be in contact with, and damage,
the stem seal.
TSB Revision
Intake
0.02
Exhaust
0.03 - 0.06
Intake 0.10 mm (0039 in.)
Exhaust 0.15 mm (.0059 in.)
m m (.0012 - .0024 in.)