Perkins 1106D Disassembly And Assembly page 51

SENR9983
Note: Either Tooling (A) can be used. Use the Tooling
that is most suitable.
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 appatures for the push rods in the cylinder
head in order to prevent the entry of loose parts into
the engine
Illustration 90
1. Inspect the valve springs (10) for damage and for
the correct length. Refer to Specifications Manual,
"Cylinder Head Valves ".
2. If necessary, install a new valve stem seal (not
shown) 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 the valve spring (10) onto the cylinder head.
Position the valve spring retainer (9) on the valve
spring (10).
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.
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 the valve
spring (10).
5. Apply sufficient pressure to Tooling (B) in order to
install the valve keepers (8).
Note: Do not compress the spring so that the valve
spring retainer (9) touches the valve stem seal (not
shown).
Install the valve spring keepers.
6. Carefully release the pressure on the Tooling (B).
7. Repeat steps 2 to 6 for the remaining valves.
The valve keepers can be thrown from the valve
when the valve spring compressor is released. En-
sure that the valve keepers are properly installed
on the valve stem. To help prevent personal injury,
keep away from the front of the valve keepers and
valve springs during the installation of the valves.
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8. Remove the 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 the valve keepers (10) 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.
Disassembly and Assembly Section
NOTICE
51