TM 5-4320-302-14
6-9. VALVES, VALVE GUIDES, AND VALVE SEATS (CONT)
Location/Item
Action
Remarks
OUTSIDE DIAMETER OF INLET
OUTSIDE DIAMETER OF EXHAUST
VALVE SEAT INSERT RING
VALVE SEAT INSERT RING
VALVE SEAT
inches
inches
INSERT RING
(millimeters)
(millimeters)
Nominal
1.7968 to 1.7976
1.5803 to 1.5811
(45.64 to 45.66)
(40.14 to 40.16)
First oversize
1.8008 to 1.8016
1.5843 to 1.5850
(45.74 to 45.76)
(40.24 to 40.26)
Second oversize
1.8047 to 1.8055
1.5882 to 1.5890
(45.84 to 45.86)
(40.34 to 40.36)
Third oversize
1.8087 to 1.8094
1.5921 to 1.5929
(45.94 to 45.96)
(40.44 to 40.46)
CLEANING/INSPECTION/REPAIR
AFTER INSTALLATION
WARNING
Severe burns, illness, or death may result if personnel fail to
handle diesel fuel oil properly. Observe the following precautions:
* Do not inhale vapor.
* Work in a well-ventilated area.
* Do not use near open flame, sparks, or excessive heat.
Death or severe injury might result when compressed air is used to
blow dirt from skin or clothing. Air entering body openings is
extremely dangerous. Compressed air used for cleaning shall not
exceed 100 psi (690 kPa). Use goggles or face shield for eye
protection. Do not direct airstream against skin.
13. Cylinder
Allow head to cool to room temperature, 75°F
head
(23.8°C).
6-57
