Mitsubishi Eclipse 1990 Service Manual page 242

11
E N G I N E O V E R H A U L
Exhaust valve
Margin
Intake valve
wrench at this instant. Multiply this reading by
will give the spring load at test length. Fractional measure-
ments are indicated on the table for finer adjustments.
Refer to specifications to obtain specified
able tensions. Discard the springs
cations.
Standard value:
Free length 46 mm
Spring tension
V a l v e
Valve open 459-611
(2) inspect each valve spring for squareness with a steel
square and surface plate, test springs from both ends.
If the spring is more than 1.5 mm
install a new spring.
REFACING VALVES AND VALVE SEATS
(1) The intake and exhaust valve seats and valve face have
a 45 degree angle.
(2) Inspect the remaining margin after the
I
Exhaust valves with less than 0.95 mm
and intake valves with less than 1.05 mm
should be discarded and replaced.
Standard value:
Angle
Intake and Exhaust
Head Diameter
Intake 34.67-34.93 mm
Exhaust
Revision
Head and
that
in.)
m i n
i n . )
mm
(123-137 in.)
in.) out of square,
are refaced.
mm
This
and allow-
in.) margin
in.)
in.)