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Information For Replacing The Functional Units: 6.1.8 Assembly of The Injector Return Pipes

This document provides instructions for replacing various functional units on an engine: 1. It describes how to assemble injector return pipes by positioning tubes on injectors and tightening screws. 2. It explains how to assemble a rocker arm cover by positioning a new gasket and cover on the cylinder head using guides and fastening screws in a specific tightening sequence. 3. Additional sections provide instructions for fitting a timing system crankcase with screws in a clamping sequence, assembling a crankshaft pulley and coolant pump, and replacing an oil pressure valve by removing, lubricating, and reinserting its piston and spring components.

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Tom Dorvan
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195 views2 pages

Information For Replacing The Functional Units: 6.1.8 Assembly of The Injector Return Pipes

This document provides instructions for replacing various functional units on an engine: 1. It describes how to assemble injector return pipes by positioning tubes on injectors and tightening screws. 2. It explains how to assemble a rocker arm cover by positioning a new gasket and cover on the cylinder head using guides and fastening screws in a specific tightening sequence. 3. Additional sections provide instructions for fitting a timing system crankcase with screws in a clamping sequence, assembling a crankshaft pulley and coolant pump, and replacing an oil pressure valve by removing, lubricating, and reinserting its piston and spring components.

Uploaded by

Tom Dorvan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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6 INFORMATION FOR REPLACING THE FUNCTIONAL UNITS

6.1.8 Assembly of the injector return pipes


N
1 - Position the tube N on the injectors Z, and tighten screws M
M (tightening torque to 14 Nm).

Fig. 6.24

6.1.9 Assembly Rocker arm cover


C
Important ST_17
• The gasket AM between the rocker arm cover and the cylinder L
head must always be replaced every time it is disassembled.

1 - Position tool ST_17 onto the head in correspondence with


the two fastening holes 5 and 6. AM
2 - Position gasket AM and cap C on cylinder head AL
matching the holes of fastening capscrews L with the aid of
the gudgeon guides ST_17.
AL

Fig. 6.25

3 - Attach the rocker arm cover C on the head AL with the


screw L adhering to the tightening sequence shown in Fig. AL C
6.27 (KDI 1903 M) or Fig. 6.28 (KDI 2504 M) (tightening
H
torque to

4 - Connect pipe H and tighten the clamp G.

Warning
• Always replace the gaskets AK after each disassembly.

AK L G

Fig. 6.26

5 1 3 5 1 3 7

8
4 2 6 4 2 6
Fig. 6.27 Fig. 6.28

64 4th ed_rev. 03
6 INFORMATION FOR REPLACING THE FUNCTIONAL UNITS

8 - Fit the timing system crankcase C with the screws R


observing the indicated clamping sequence (tightening 12 7 8
torque at
1
11
15
4

10 9

6
5
13
14
3 2
Fig. 6.45

6.4.7 Crankshaft pulley assembly

1 - Perform the operations described in Par 6.3.2.

6.4.8 Coolant pump assembly

1 - Perform the operations described in Par 6.2.2.

6.5 Oil pressure valve replacement


C B

Important W
• Before proceeding with operation, read Par. 3.3.2.

6.5.1 Disassembly
A
1 - Undo cap A.

2 - From the crankcase D, remove the spring B.

3 - Remove the valve piston C using a magnet. D

Fig. 6.46

6.5.2 Assembly

Important
• Carry out the checks described in Par. 8.7.3 prior to assembly.
• Always replace the gasket F after each assembly. D

1 - Lubricate the piston C and fully insert it in the seat E.

2 - Insert the spring B in the piston.

3 - Mount the gasket F on cap A.

4 - Clamp the cap A on the crankcase D (tightening torque at E C B F A


Fig. 6.47

70 4th ed_rev. 03

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