Valve Seat Angle And Valve Margin; Valve And Valve Guide; Valve Guide - Mitsubishi FUSO FH 1997 Service Manual

CYLINDER HEAD AND VALVE MECHANISM
7, 8
A
7, 8
23
11-20

(2) Valve seat angle and valve margin

If the measured value is higher than the limit, correct or replace valves
7, 8.
A :
B :
B
02264
[Correction]
NOTE
• Be sure to keep the grinding work as light as possible.
• Be sure to replace valves 7, 8 after grinding if valve margin
deviates from the limit.
• Be sure to lap valve 7, 8 and valve seats 19, 20 after grinding.
Õ P11-21
78MN
01966
[Inspection]
When the clearance is higher than the limit, replace the faulty parts.
17, 18
03254

Valve guide

[Removal]
0
17, 18
03255
[Installation]
0
• Tap down valve guides 17, 18 with 0 valve guide installer until it hits
cylinder head 23.
CAUTION–
• The length of fit of valve guides 17, 18 is standardized. Be sure to
10 mm {0.39 in.}
use 0 valve guide installer.
• Be sure to distinguish between valve guides 17, 18. Exhaust
17, 18
valve guide 18 is longer.
03256
Valve seat angle
Valve margin

Valve and valve guide