TM 5-3805-255-14
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DESCRIPTION
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Each cylinder head contains six intake and six exhaust valves (two of each per cylinder). Positive valve rotators
and valve seat inserts are used on all valves.
There are three fuel injection nozzles in each cylinder head, one between each pair of intake and exhaust valves.
To insure efficient cooling, nozzles are inserted into a thin-walled copper tube, passing through water space in
cylinder head.
The rocker arm assembly on each head is mounted on four brackets and is located and held down by cylinder
head studs and nuts. There are two rocker levers per cylinder, one for each pair of intake exhaust valves. A valve
bridge connects each pair of intake and exhaust valves which allows both valves to be actuated by one rocker
lever.
Both cylinder heads are basically of uniform construction, however, slight modifications in design prevent them
from being interchangeable. A separate cylinder head gasket with integral gasket rings is provided for each head.
REMOVAL
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1. Remove water transfer tube (Figure 1, Item 4), inverted nut tube (Figure 1, Item 3), and straight pipe adapter
(Figure 1, Item 2) from cylinder head (Figure 1, Item 1).
Figure 1. Water Transfer Tube.
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