Mitsubishi 4G6 Series 1991 Specifications download pdf (Page 82)

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

Do not use the valve guide of the same size as

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

Press the valve guide from the cylinder head top

surface.

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)

(4) After the valve guide has been installed, insert a new

valve to check for smooth sliding motion.

AddedPWEE9616-A

Aug. 1998Mitsubishi Motors Corporation

1EN0106

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Mitsubishi 4G6 Series 1991 Specifications Page 82