Specifications

6G7 ENGINE – Cylinder Head and Valves
11B-12-11
PWEE9520
E
Nov. 1995Mitsubishi Motors Corporation
4. VALVE GUIDE
Measure the clearance between the valve guide and the
valve stem. When the clearance exceeds the specified
limit, change the valve guide or the valve or both.
Item Standard
value mm
Limit mm
12-valve Intake 0.03–0.06 0.10
Exhaust 0.05–0.09 0.15
24-valve Intake 0.02–0.05 0.10
Exhaust 0.04–0.06 0.15
GDI Intake 0.02–0.05 0.10
Exhaust 0.04–0.07 0.15
5. VALVE SEAT
Assemble the valve, and with it pressed down on the
valve seat measure the part of the valve which protrudes
from the spring seat surface. The length measured should
be between the spring seat surface and the valve stem
end. If the measured value exceeds the limit, change
the valve.
Item Standard
value mm
Limit mm
12-valve Intake 41.65 42.15
Exhaust 41.65 42.15
24-valve Intake 49.30 49.80
Exhaust 49.30 49.80
GDI Intake 47.10 47.60
Exhaust 46.60 47.10
6. VALVE SEAT RECONDITIONING PROCEDURE
(1) Check the clearance between the valve guide and
the valve, and if necessary, change the valve guide
before correcting the valve seat.
(2) Correct so that the valve seat width and angle are
as specified in the figure at left.
(3) After making the corrections, apply lapping compound
and adjust the valve and valve seat.
PWEE9061-I
E
Aug. 2001Mitsubishi Motors Corporation Added
1EN0279
Stem outside diameter
Guide inside diameter
DEN0212
Valve stem
end
Valve
protrusion
Spring seat
surface
65°
43.5 – 44°
20°
0.9 – 1.3 mm
<12-VALVE, GDI>