Disassembly and assembly

KENR6226-01 21
Disassembly and Assembly Section
Installation P
rocedure
Table 4
Required Tools
Tool Part Number Part Description Qty
A
21825739
Valve Spring Compressor 1
B
(1)
-
Adapter 1
B
(2)
27610235
Adapter 1
B
(3)
21825934 Adapter 1
(1)
402D-05 and 403D-07 engines
(2)
403D-11 and 404D-15 engines
(3)
403D-15, 403D-15T, 403D-17, 404D-22, 404D-22T and
404D-22TA engines
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened
component life.
NOTICE
Do not turn the crankshaft while the valve springs are
removed.
NOTICE
Plug the apertures for the push rods in the cylinder
head in order to prevent the entry of loose parts into
the engine.
NOTICE
Install suitable plugs to the inlet ports of the cylinder
head in order to
prevent the entry of loose parts into
the engine.
1. Inspect the val
ve springs for the correct length.
Refer to Specifications, “Cylinder Head Valves ”.
g01304583
Illustration 28
Typical example
2. Install valve spring (3) onto the cylinder head.
Position valve spring retainer (2) onto valve spring
(3).
Improper assembly of parts that are spring loaded
can cause bodily injury.
To prevent possible injury, follow the established
assembly procedure and wear protective equip-
ment.
NOTICE
Ensure that the valve spring is compressed squarely
or damage to the valve stem may occur.
3. Install Tooling (A) and (B) in the appropriate
position on the cylinder head in order to compress
the valve spri
ng.
4. Apply sufficient pressure to Tooling (A) in order to
install valve
keepers (1).
Note: Do not compress the spring so that valve
spring retai
ner (2) touches the valve stem seal.
Install the valve spring keepers.
5. Carefully release the pressure on Tooling (A).
Note: Ensure
that the valve keepers are correctly
seated.
The valve spring keepers can be thrown from
the valve when the valve spring compressor is
released. E
nsure that the valve spring keepers
are properly installed on the valve stem. To help
prevent pe rsonal injury, keep away from the front
of the valve
spring keepers and valve springs
during the installation of the valves.
6. Remove Tool
ing (A). Ensure that all of the valves
are secured in place by a valve spring and valve
keepers. Rotate the crankshaft through about
45 degrees
inordertoclearthepistonfromthe
valve. Lightly strike the top of the valve with a soft
hammer in order to ensure that the valve keepers
are proper
ly installed.
End By:
a. Install the rocker shaft assembly. Refer to
Disassembly and Assembly, “Rocker Shaft and
Pushrod -
Install”.
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