Inspection And Repair; Replacement Of Valve Guide - Mitsubishi Heavy Industries L2 Service Manual

CYLINDER HEAD
Check guide for wear and damage
Check for valve contact, wear,
damage, and sink of seat face.
Figure 37 Inspection of cylinder head
Figure 38 Press-fitting valve guide
46 / 155
Check cylinder head surface for
a warpage between bolt holes:
within 0.05 mm [0.0020 in.]
14±0.5 mm
[0.5512 ±0.0197 in.]
ENGLISH
ENGINE MAIN PARTS
9.3

Inspection and Repair

Check for cracks, damage, water
leak and remove oil, sludge, sealant
deposit, carbon deposit.
9.4

Replacement of valve guide

If a valve guide is defective, replace it.
9.4.1 Removal
Press the guide at its upper end and push it out to the
valve seat side.
9.4.2 Installation (press-fitting)
Press-fit the guide from the upper side of the cylinder
head to a height of 14 ±0.5 mm [0.5512 ±0.0197 in.]
from the valve spring seat face.
Service Manual Mitsubishi L-Series diesel engines
Version 08/2004