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 TM 55-1925-204-12
Figure 5-10. Water cooled exhaust manifold
started on its stud, then move manifold up to the gasket
(d) Loosen hose clamps and remove
and tighten nuts to a torque of 30-35 ft lbs.
water inlet hose from outlet end of exhaust manifold and
(c) Reconnect inlet and outlet water
the water manifold.
lines.
(e) If a drain hose is installed on
(d) Install drain hose, if used. Fill cooling
draincock, remove the drain hose.
system.
m. Water Manifold.
NOTE
(1) Removal.
If the engine is being disassembled for
(a) Drain the engine cooling system.
reconditioning (overhaul) the water
(b) Disconnect and remove water line
manifold, and water cooled exhaust
from exhaust manifold and water manifold (near the
manifold can be removed with the
instrument panel) (fig. 5-9).
cylinder head, by removing the 10
(c) Loosen hose clamps and remove the
cylinder head hold down nuts.
hose connection between water manifold and the
However,
for
replacing
manifold
thermostat housing at top rear of heat exchanger
gaskets, proceed as described below.
expansion tank.
(d) Remove the 12 nuts and washers that
(f) Remove the five retaining nuts and
secure the water manifold legs to the cylinder head, then
washers from the studs securing the manifold to the
lift water manifold off the engine. Remove the four
engine block. The nut on the stud between the front two
gaskets.
legs of manifold will not come off until the others are
(2) Installation.
loosened, and the manifold is pulled away from the
(a) Position new gaskets over the water
cylinder head the thickness of the nut. Remove the
manifold studs on cylinder head.
manifold. Remove the gasket.
(b) Position water manifold on studs,
(2) Installation.
then secure water manifold with washers and nuts.
(a) Position new manifold gasket over
Tighten nuts to a torque of between 25-30 ft lbs.
studs.
(c) Install hose connection and two hose
(b) Lift manifold into position and barely
clamps on front end of water manifold and the thermostat
hang it on studs, until the number two washer and nut is
housing, then tighten the two hose clamp screws.
5-13
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