TM 5-3805-280-24-2
Cylinder Head and Valves
MEASURE VALVE SEAT BORE IN CYLINDER
05
41
HEAD
If bore dimensions are not within specification, machine
head to the following specifications:
Exhaust Valve Seat
Insert Bore
Specifications:
A ................................
42.987--43.013 mm (1.6924--1.6934 in.)
B ................................
3.82 mm (0.150 in.) Reference
C ................................
9.936--10.064 mm (0.3912--0.3962 in.)
38--42
D ................................
E ................................
Maximum Radius 0.5 mm (0.019 in.)
Maximum surface finish
0.00158 mm
of bore "A" .................
(0.000062 in.)
Intake Valve Seat
Insert Bore
Specifications:
A ................................
47.104--47.130 mm (1.8545--1.8555 in.)
B ................................
3.45 mm (0.136 in.) Reference
C ................................
9.936--10.064 mm (0.3912--0.3962 in.)
38--42
D ................................
E ................................
Maximum Radius 0.5 mm (0.019 in.)
Maximum surface finish
0.00158 mm
of bore "A" .................
(0.000062 in.)
Replacement Valve
Seat Insert OD:
Intake .........................
47.155--47.181 mm (1.8565--1.8575 in.)
Exhaust ......................
43.038--43.064 mm (1.6944--1.6954 in.)
RG,05,DT7351 1911NOV971/1
13-99
