Perkins 1106C Series, Disassembly And Assembly, Page: 53 / 192

KENR6932 53
Disassembly and Assembly Section
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Illustration 91
1. Inspect valve springs (11) for damage and for the
correct length. Refer to Speci fi cations, “Cylinder
Head Valves ”.
2. If necessary, install a new valve stem seal onto
the valve guide.
Note: The outer face of the valve guide must be
clean and dry before installing the valve stem seal.
3. Install valve spring (11) onto the cylinder head.
Position valve spring retainer (10) on valve spring
(11).
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.
4. Install Tooling (B) in the appropriate position on
the cylinder head in order to compress valve
spring (11).
5. Apply suf fi cient pressure to Tooling (B) in order to
install valve keepers (9).
Note: Do not compress the spring so that valve
spring retainer (10) touches the valve stem seal.
Install the valve spring keepers.
6. Carefully release the pressure on Tooling (B).
7. Repeat steps 2 to 6 for the remaining valves.
The valve spring keepers can be thrown from
the valve when the valve spring compressor is
released. Ensure that the valve spring keepers
are properly installed on the valve stem. To help
prevent personal injury, keep away from the front
of the valve spring keepers and valve springs
during the installation of the valves.
8. Remove Tooling (B).
9. Use Tooling (C) to rotate the crankshaft through
approximately 45 degrees. This will ensure that
the appropriate valve is clear of the piston. Lightly
strike the top of the valve with a soft hammer in
order to ensure that valve keepers (9) are properly
installed.
Note: If all valve springs require replacement the
procedure can be carried out on two cylinders at
the same time. The procedure can be carried out
on the following cylinders. 1 and 6, 2 and 5, and 3
and 4. Remember that the crankshaft must not be
turned while the valve springs are removed. Ensure
that all of the valve springs are installed before
changing from one pair of cylinders to the other
pair of cylinders. If all valve springs do not require
replacement, the springs must be replaced in pairs.
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Illustration 92
10. Follow Steps 10.a through 10.g in order to install
the harness assemblies for the electronic unit
injectors.