TM 5-4310-343-35
clamps. Line up cylinder openings with studs, and with letter "F" facing front, push cylinder onto crankcase. Secure with
six studs (7) washers (3) and locknuts (2). Torque studs to 40 pound-inches, using torque adapter, part number 256999
or equivalent and locknuts (2) to 30 pound-inches, using torque adapter, part number 256997 or equivalent.
(k) Refer to table 5-1 and figure 6-8 and assemble the second stage as follows: Remove mounting bolts
from rear of crankcase. Rotate the crankcase 90 cw to bring the second stage up to top. Remount in this position.
Refer to figure 6-8 an assemble valve plate (11), gasket (10), seal plate (9), and cylinder head (8). Use fixture No.
205088 or equiv lent to press valve plate into the head. Coat the plunger (17) with oil, FSN 9150-753-4667. scraper ring
a
(16) and install in the lowest groove on plunger. Expand three compression rings (15) in order and install in their proper
grooves. Insert the plunger assembly liberally coated with oil into the cylinder (18) using a suitable ring compressor, part
number 257001 or equiv
alent. Refer to figure 5-4 and calculate the thickness of shim (11, figure 6-6) to establish
the required head clearance. Peel the shim to required thickness.
(l)
Install preformed packing (12) and shim (11).
(m) Apply oil, MIL-L-60851 to the intake valve seat of the valve plate (11, figure 6-8) and place the lapped face
on the intake valve (13) against the seat. The valve should adhere to the seat when the valve plate is inverted. Place the
head (8) with intake valve (13) and valve spring (14) in place, (spring installed with legs down against valve) over the head
of the cylinder (18). Position the intake and discharge ports parallel to the crankshaft with the discharge port facing rear.
Install the discharge valve (7) with lapped face against the valve seat. Drop the spring (3) into place. Refer to figure 5-4
and determine the thickness of
5-46
