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 TM 55-1905-223-24-1
b. Install fuel manifolds.
NOTE
The engine has two different manifolds. The left bank front and
right bank rear are the same. The left bank rear and right bank
front are the same.
(1) Position preformed packings (40) on fuel manifolds (37 and 43). Use Lubriplate to hold the preformed
packing in the manifold counterbore.
(2) Position fuel manifolds (37 and 43) on engine with bolt holes aligned.
CAUTION
Ensure preformed packing (40) stays in place. If the packing
falls out, a high pressure fuel leak can result, creating a fire
hazard.
(3) Install socket head capscrews (38) and washers (39). Tighten socket head capscrews to 85 in-lb (10
N
m).
(4) Install machine thread plug (41).
c. Install fuel blocks assembly.
CAUTION
The fuel fittings (24) must be installed on the metal tube
assemblies (1 and 6) before the assemblies are installed in the
fuel blocks (3, 4, 7 and 10). A fitting could be damaged if
installed first.
(1) Install fuel fittings (24) on metal tube assemblies (1 and 6).
(2) Install metal tube assemblies (1 and 6) in fuel blocks (3, 4, 7 and 10). Do not tighten.
(3) Install fuel fittings (2 and 8) in fuel block (3, 4, 7 and 10).
(4) Install preformed packings (5) in fuel block (3, 4, 7 and 10). Use Lubriplate to hold preformed packings
in fuel block counterbores.
(5) Position fuel block (3, 4, 7 and 10) on fuel manifold (37 and 43). Install socket head capscrews (9).
Tighten to 45 in-lb (5 N ).
m
(6) Tighten metal tube assembly (1 and 6) nuts by hand until the nut touches the fuel fitting (24) and the
fuel fitting (24) touches the counterbore in the fuel block (3, 4, 7 and 10). Use an 11/16-inch wrench to
tighten the nut until the bottom of the hex touches the fuel block.
(7) Install nonmetallic hoses (12, 13, 44 and 45) to fuel fittings (2 and 8). Tighten hose fittings to 20 ft-lb
(25 N ).
m
3-47
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