TM 5-3810-300-24&P-3
5.2
Coolant leaving the cylinder head through an opening
over each exhaust port, enters the water manifold which
is attached to the head with two nuts and lock washers at
each of the water openings (Fig. 1). A separate gasket
is used at each attaching flange between the manifold
and cylinder head.
A gradually increasing area in the cast manifold from the
rear end terminates in a mounting flange to which the
thermostat housing is attached by means of bolts and
lock washers.
Fig. 1 - Typical Water Manifold Mounting
Remove Water Manifold
Remove the water manifold as follows:
1. With new gaskets in place, lower the water manifold
down over studs and secure to cylinder head with two
1. Drain the cooling system to level necessary by
nuts and lock washers at each riser.
opening valve in bottom of fresh water pump and valve in
thermostat housing.
2.
Install temperature gage adaptor in end of manifold.
2. Loosen the bolts which secure the outlet elbow and
3. Attach the thermostat housing and outlet elbow to
thermostat housing to the water manifold.
the water manifold with bolts and lock washers.
3. Remove the cooling water temperature gage,
4.
Fill the cooling system to proper level.
adaptor from the rear end of water manifold.
NOTE:
When filling cooling system on
4. Remove the water manifold stud nuts and lock
certain models, it is necessary to open the
washers and lift the manifold straight up off studs.
vent valve at the top of thermostat housing.
Remove the manifold to cylinder head gaskets.
Install Water Manifold
Remove all the old gaskets and install the manifold using
new gaskets.
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