TM 5-3805-261-23-2
VALVES MAINTENANCE - CONTINUED
0274 00
REMOVAL - CONTINUED
WARNING
Use extreme caution when removing locks and rotocoil assembly. Wear safety glasses. Uncontrolled release
of the valve spring may cause injury to personnel.
NOTE
Tag all parts before removal to aid in installation.
3.
Carefully remove two locks (4) and rotocoil assembly
4
3
(3) from valve stem (5). Do not release valve spring
(1).
1
4.
Slowly release valve spring compressor.
2
5.
Remove valve spring (1) and valve stem (5) from cyl-
inder block head (2).
5
397-1324
DISASSEMBLY
NOTE
Remove guides and washers only if inspection indicates replacement is necessary.
1.
Inspect eight valve stem guides (6). Replace if
VALVE SEAT
cracked, broken, grooved, scored, or bore diameter
EXTRACTOR
exceeds 0.3772 in. (9.581 mm).
2.
Use driver and hammer to remove damaged or worn
guide (6) from bottom of cylinder block head (2).
3.
Inspect four exhaust valve seats (7) and intake wash-
2
ers (8). Replace if cracked, broken, burned, or pitted.
4.
Use valve seat extractor to remove intake washers (8).
8
6
7
397-2221
0274 00-2