Perkins珀金斯900 3.152柴油发动机41314187机油泵

9.  Loosen the nut in order to release the pressure

on Tooling (B). Remove electronic unit injector

clamp (1) and Tooling (B) from the electronic unit

injector sleeve.

10. Ensure that all of the valves are secured in place

by valve springs, valve rotators and valve keepers.

Rotate the crankshaft through approximately 45

degrees in order to clear  the valves from the

piston. Lightly strike the top of the valves with a

soft faced hammer in order to  ensure that the

valve keepers are properly installed.

End By:

a.  Install the electronic unit injectors.  Refer to

Disassembly and Assembly, “Electronic  Unit

Injector - Install”.

i02754776

Inlet and Exhaust  Valves -

Remove and Install

g01380893

Illustration 37

Improper assembly of parts that are spring loaded

can cause bodily injury.

Removal Procedure

To prevent possible injury, follow the established

assembly procedure  and wear  protective equip-

ment.

Table 10

Required Tools

Part

4.  Install spring seats (7).

Tool

Number

Part Description

Qty

A

-

Valve Spring Compressor

1

5.  Install inner valve springs (6) and outer  valve

springs (5).

Start By:

6.  Position valve rotators (4) on the valve springs.

a.  Remove the cylinder head. Refer to Disassembly

and Assembly, “Cylinder Head - Remove”.

7.  Position electronic unit injector clamp (1)  on

Tooling (B). Install Tooling (B) into the electronic

unit injector sleeve.  Tighten the bolt on the

electronic unit injector clamp in order to secure

Tooling (B).

NOTICE

Keep all parts clean from contaminants.

Contaminants may cause  rapid wear and  shortened

component life.

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.  Tighten the nut on Tooling (B) in order to compress

the valve springs. Install valve keepers (3).

This document has been printed from SPI². Not for Resale

22

KENR6906

Disassembly and  Assembly Section

2.  Carefully remove Tooling (A).

3.  Remove valve rotator (2).

4.  Remove outer valve spring (3) and inner valve

spring (4).

5.  Repeat Steps 1 through 4 in order to remove the

remaining valve springs.

6.  Remove spring seats (5).

7.  Remove valve stem seals (7).

8.  Remove valves (6) from the cylinder head.

g01395727

Illustration 38

Typical example

Installation Procedure

Table 11

Required Tools

Part

Tool

Number

Part Description

Qty

A

-

Valve Spring Compressor

1

NOTICE

Keep all parts clean from contaminants.

Contaminants may cause  rapid wear and  shortened

component life.

1.  Inspect the valve springs for the correct length.

Refer to Specifications, “Cylinder Head Valves ”

for more information.

Note: Valve springs must be replaced in pairs for the

inlet valve or the exhaust valve of each cylinder.

2.  Inspect the valves. Refer to  Specifications,

“Cylinder Head Valves” for more information.

g01392788

Illustration 39

Personal injury  can result  from being  struck by

parts propelled by a released spring force.

Make sure to wear all necessary protective equip-

ment.

Follow the  recommended procedure  and use all

recommended tooling to release the spring force.

1.  Install Tooling (A) and compress the valve springs.

Remove valve keepers (1).

This document has been printed from SPI². Not for Resale

KENR6906

23

Disassembly and  Assembly Section

6.  Install inner valve spring (4) and outer valve spring

(3).

7.  Position valve rotator (2) on the valve springs.

8.  Use Tooling (A) to compress the valve springs.

Install valve keepers (1).

9.  Repeat Steps 6 through 8 in order to install the

remaining valve keepers.

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.

10. Carefully remove Tooling (A). Lightly strike the top

of the valve with a soft faced hammer in order to

ensure that valve keepers (1) are properly seated.

End By:

g01392788

Illustration 40

a.  Install the cylinder head. Refer to Disassembly

and Assembly, “Cylinder Head - Install”.

i02754778

Inlet and Exhaust Valve Guides

- Remove and Install

Removal Procedure

Table 12

Required Tools

g01395727

Illustration 41

Tool

Part Number

Part Description

Qty

Typical example

A

CVT0001

Valve Guide Driver

1

Start By:

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.

a.  Remove the inlet and exhaust valves. Refer to

Disassembly and Assembly, “Inlet and Exhaust

Valves - Remove and Install”.

NOTICE

Keep all parts clean from contaminants.

3.  Lubricate valves (6) with clean engine oil. Install

the valves to the cylinder head.

Contaminants may cause  rapid wear and  shortened

component life.

4.  Install valve stem seals (7) to valves (6).

5.  Install spring seats (5) to the cylinder head.

This document has been printed from SPI². Not for Resale