Mitsubishi 4g6 series Manual Do Utilizador
4G6 ENGINE (E - W) -
Cylinder Head and Valves
11A-9-10
VALVE GUIDE REPLACEMENT PROCEDURE
(1) Force the valve guide out toward the cylinder block using
a press.
(2) Machine the valve guide hole in the cylinder head to
the size of the oversize valve guide to be installed.
Caution
D
Do not use the valve guide of the same size as
the removed one.
the removed one.
Valve gauge hole diameters in cylinder head
Item
Standard value mm
SOHC
0.05 O.S.
11.05 - 11.07
0.25 O.S.
11.25 - 11.27
0.50 O.S.
11.50 - 11.52
GDI
0.05 O.S.
12.05 - 12.07
0.25 O.S.
12.25 - 12.27
0.50 O.S.
12.50 - 12.52
(3) Press-fit the valve guide until it protrude specified value
(SOHC 14 mm, GDI 19.5 mm) as shown in the illustration.
Caution
D
Press the valve guide from the cylinder head top
surface.
surface.
D
Valve guide for intake valve and that for exhaust
valve are different in length. (45.5 mm for intake
valve; 50.5 mm for exhaust valve)
valve are different in length. (45.5 mm for intake
valve; 50.5 mm for exhaust valve)
(4) After the valve guide has been installed, insert a new
valve to check for smooth sliding motion.
Added
PWEE9616-A
E
Aug. 1998
Mitsubishi Motors Corporation
1EN0106
Protrusion