TM 5-4320-302-14
6-20. CRANKSHAFT ASSEMBLY (CONT)
Location/Item
Action
Remarks
45. Crankcase
After refacing cylinder seat, loosen setscrew and
cylinder seat
turn knurled nut counterclockwise to back seat
refacing tool
cutter and holder away from cylinder seat. With-
No. 150010
draw seat cutter holder with positioning screw
and remove refacing tool.
46. Cylinder seat
If other cylinder seat also needs to be refaced,
refacing
smoothed, and or flattened, repeat above process
starting with step 43.
NOTE
If cylinder seats are refaced, check piston top clearance
when cylinder and cylinder head are installed. If too much
of the cylinder seat has not been removed, the difference in
height can be corrected with additional shims when the
cylinder is installed. Follow procedure in paragraph 6-15.
47. Dished plug,
Do not attempt repairs on these components. Re-
parallel pins,
place if worn, cracked, or damaged.
plugs, and
washers
6-187
