PowerTech 6105HF - Resurface Cylinder Head Combustion Face

Cylinder Head and Valves
02
020
32
RG,RG34710,83 –19–30SEP97–1/1
Resurface Cylinder Head Combustion Face
IMPORTANT: DO NOT grind cylinder head
combustion face or block top deck.
Surface mill only.
After surface milling, check flatness
(see CHECK CYLINDER HEAD
FLATNESS in this group). Check
surface finish on combustion face of
head.
Measure valve height (recess) after
grinding. (See CHECK VALVE HEIGHT
IN RELATION TO HEAD SURFACE
earlier in this group.) Valve seat or
valve face may be ground to bring
within specifications.
NOTE: If necessary to resurface cylinder head, a
MAXIMUM of 0.15 mm (0.006 in.) can be milled
from minimum new part dimension. Remove
ONLY what is necessary to restore flatness.
Specification
Cylinder Head (Rocker Arm
Cavity-to-Combustion Face)—
Minimum Overall Thickness 124.840 mm (4.9150 in.)...............................
Cylinder Head Combustion Face
Surface Finish (Surface Mill Only)
(AA)—Surface Finish 1.5—2.8 micrometers (60—110
micro-in.)
................................
Cylinder Head—Maximum Wave
Height 0.008 micrometers (0.0002
micro-in.)
..............................................................
Maximum Wave Width 2.0 micrometers (79 micro-in.)...............................
CTM100 (06APR04) 02-020-32 P OWER T ECH 10.5 L & 12.5 L Diesel Engines
040604
PN=104