TM10-3950-672-24-2
Caution: The small holes in the head
gasket are especially susceptible to
plugging.
Water will cause rust formation reducing the flow in the
smaller coolant passages.
Caution: These holes are orifices and
their size is critical. Do not enlarge
the size of the orifices. To do so will
disturb the coolant flow and will not
solve an overheating problem.
Also, water used as a coolant for even a relatively short
period can result in the cup plugs rusting through
allowing the coolant to leak.
Note: A sudden loss of coolant from
a heavily loaded engine can result in
cylinder bore.
Pressure Caps The system is designed to use a
pressure cap to prevent boiling of the coolant.
Different caps are specified for the two recommended
systems:
System
Cap
A - 104 [220F]
C
103kPa [15 PSI]
B - 99 [210 ]
C
F
48kPa [7 PSI]
An incorrect or malfunctioning cap can result in the loss
of coolant and the engine running hot.
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