TM 5-3805-261-23-2
VALVES MAINTENANCE - CONTINUED
0274 00
ASSEMBLY
CAUTION
When installing new valve seat or washer, do not expand extractor tooling diameter.
1.
Chill four exhaust valve seats (7) and intake washers (8).
2.
Use extractor to install exhaust valve seats (7) and intake washers (8) in cylinder block head (2). Press until seated on
counterbore.
3.
Measure valve recess. Valve must be below combustion surface with no protrusion.
NOTE
Eight guides must contact enough to allow easy fit into cylinder.
Minimum diameter of bore of new guides after installation is 0.3723 in. (9.456 mm).
4.
Lower temperature of eight guides (6).
6
5.
If removed, use driver and press to install eight new
2
guides (6). Ensure that guides extend above top of cyl-
inder blockhead (2) by 0.875 in. (22.23 mm).
6.
Remove all burrs and clean eight new guides (6) after
installation.
COUNTERBORE
OF HEAD
397-1327
0274 00-5
