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TM 5-4210-220-34
2-19.
ENGINE - Continued
2-19.8
Cylinder Head - Continued
(10) Place new seal rings in the counter bores of the water and oil holes in the cylinder block (13 rings altogether).
(11) Install a new oil seal in the groove around the perimeter of the cylinder block with the colored stripe facing
away from the cylinder bores. Be sure seal lays flat in the groove and is not twisted or stretched when
installed.
(12) Install guide studs J24748 in the two outboard bolt holes in the cylinder block.
(13) Attach lifting tool J22062-01 to the cylinder head, if convenient, then position head above the cylinder head.
(14) Make final visual check to be sure all seals, gaskets, and shims are in place.
(15) Wipe the bottom of the head clean and lower head over guide studs onto the surface of the block.
(16) Apply
a
small
amount
of
antiseize
compound (item 4, Appendix B) to the
threads and to the underside of each
cylinder head bolt head.
(17) Install bolts on the cam shaft side first to
take up the tension on the push rod
springs. Remove the guide studs and lifting
fixture and install all remaining bolts.
Tighten all bolts to 20 ft lb (27 Nm).
(18) Tighten the bolts in 50 ft lb (68 Nm)
increments in the sequence shown until all
bolts are at 240 ft lb (325 Nm). Hold the
tension for 2 3 seconds to allow bolt to
move under this torque.
REPAIR
a.
Water Nozzle Repair
NOTE
Replace the nozzles if they are loose in the cylinder head. If the engine has overheated, replace all
nozzles.
(1) Pry out the old water nozzles.
(2) Be sure the water inlet ports in the cylinder head are clean and free of scale. Use a soft bristle brush to clean
the holes. Do not use a drill bit as the holes are reamed for fit.
(3) Place cylinder head on an arbor press, fire deck side up. Be sure bottom side of head is supported on its rim
to prevent damage to valve guides etc.
(4) Aline new nozzle in hole and using a suitable arbor, press into position.
(5) Check nozzles are recessed from flush to 0.015 in. (0.38 mm) below the fire deck.
2-218 (2-219 Blank)
TM 5-4210-220-34
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