TM 5-3810-300-24&P-3
1.2 Cylinder Head
Fig. 6 - Water Nozzles in Four-Valve Cylinder Head
3. Accumulation of dirt on the radiator core which will
reduce the flow of air and slow the transfer of heat from
the coolant to the air.
4. Inoperative radiator cap which will result in loss of
exhaust valve water jackets. This can be done by
coolant.
removing an injector tube. Where inspection discloses
such deposits, use a reliable non-corrosive scale
remover to remove the deposits from the cooling system
Remove Cylinder Head
of the engine, since a similar condition will exist in the
cylinder block and other components of the engine.
Certain service operations on the engine require removal
Refer
to
for
engine
coolant
of the cylinder head:
recommendations.
1.
Remove and install pistons.
Loose or improperly seated injector tubes may result in
compression leaks into the cooling system and also
2.
Remove and install cylinder liners.
result in loss of engine coolant. The tubes must be tight
to be properly seated. Refer to Section 2.1.4.
3.
Remove and install exhaust valves.
Overtightened injector clamp bolts may also cause head
4.
Remove and install exhaust valve guides.
cracks. Always use a torque wrench to tighten the bolts
to the specified torque.
5.
Recondition exhaust valves and valve seat inserts.
Other conditions which may eventually result in cylinder
6.
Replace fuel injector tubes.
head cracks are:
7.
Install new cylinder head gaskets and seals.
1. Excess fuel in the cylinders caused by leaking
injectors.
8.
Remove and install camshaft.
2. Slipping fan belts can cause overheating by
Due to the various optional and accessory equipment
reducing air flow through the radiator.
used, only the general steps for removal of the cylinder
head are covered. If the engine is equipped
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