項目   零配件號碼    最近的部分號碼    描述      

    1   CV72010    12  CV72010    缸套         

    1   CV19912    12  CV72010    缸套         

    (1) CV11401    12  CV11401    缸套         

    (1) CV11402    12  CV11402    缸套 -特大號 

    項目   零配件號碼    最近的部分號碼    描述       

    1   CV12310    2   CV12310    岐管         

    3   CV12310    2   CV12310    岐管         

    5   ST43325    2   ST43325    栓塞         

    6   CV8927 4   CV8927 板        

    7   CV20227    4   CV20227    密封墊       

    8   ST44456    16  ST44456    螺拴         

    9   ST43161    16  2134 A010  彈簧塾圈         

    10  CV13396    2   CV13396    栓塞         

    11  ST10935    2   ST10935    封閉砂條         

    12  ST44441    2   2314 C045  固定螺釘         

    13  ST43160    2   2134 A008  墊圈         

    15  CV12311    12  CV12311    線橋         

    16  ST10890    24  ST10890    封閉砂條         

    17  ST44458    8   2314 C053  固定螺釘         

    18  ST44606    6   2318 A209  公制的螺帽       

    19  ST43161    8   2134 A010  彈簧塾圈         

    20  CV12560    2   CV12560    帽        

    21  ST43551    8   ST43551    螺拴         

    22  ST43161    8   2134 A010  彈簧塾圈         

    23  ST43574    48  ST43574    螺拴         

    24  ST43161    48  2134 A010  彈簧塾圈  

    項目   零配件號碼    最近的部分號碼    描述      

    1   CV9278/1 Z 1   CV9278/1 Z 殼        

    6   CV20362    1   CV20362    密封墊       

    9   ST49007    1   ST49007    CIRCLIP          

    14  ST49007    1   ST49007    CIRCLIP          

    15  CV5533 1   CV5533 墊圈         

    16  CV5324 1   CV5324 螺帽         

    17  CV17402    1   CV17402    密封 -前面端油          

    18  CV1305 2   CV1305 合釘         

    19  CV1306 2   CV1306 密封O型圈       

    20  ST43712    5   ST43712    螺拴         

    21  ST43164    5   ST43164    墊圈         

    22  2131 A016  5   2131 A016  墊圈         

    23  ST43515    9   ST43515    螺拴         

    24  2134 A008  9   2134 A008  墊圈         

    25  2131 A008  9   2131 A008  墊圈         

    26  CV7617 1   CV7617 圖釘         

    27  2318 A222  1   2318 A222  螺帽         

    28  ST43164    2   ST43164    墊圈         

    29  2131 A016  2   2131 A016  墊圈         

    30  CV14151    2   CV14151    栓塞                    

    項目   零配件號碼    最近的部分號碼    描述      

    1   CV14445/1  1   CV14445/1  飛輪組合         

    4   CV6460 1   CV6460 銷        

    5   CV2481 1   CV2481 圈        

    6   ST46709    16  ST46709    CAPSCREW

    項目   零配件號碼    最近的部分號碼    描述      

    1   CV14092    1      飛輪殼       

    2   CV20222    1   CV20222    密封墊       

    3   CV17404    1   CV17404    密封 -背面端油          

    4   ST46079    1   ST46079    栓塞         

    5   ST49891    1   ST49891    墊圈         

    6   CV6461 2   CV6461 銷        

    7   OE25649    1   OE25649    栓塞         

    8   ST49853    1   ST49853    墊圈         

    9   ST20704    2   ST20704    栓塞         

    10  ST43652    1   ST43652    螺拴         

    11  ST43163    1   ST43163    墊圈         

    12  ST43603    8   ST43603    公制的螺拴       

    13  2134 A012  8   2134 A012  墊圈         

    14  ST43602    2   ST43602    螺拴         

    15  2134 A012  2   2134 A012  墊圈         

    16  ST43620    2   ST43620    螺拴         

    17  2134 A012  2   2134 A012  墊圈         

    18  ST43605    9   ST43605    螺拴         

    19  2134 A012  9   2134 A012  墊圈  

    項目   零配件號碼    最近的部分號碼    描述      

    1   CV1499 1   CV1499 架設(shè)板       

    2   CV19541    1   CV19541    密封墊       

    3   ST43580    2   ST43580    螺拴         

    4   2134 A010  2   2134 A010  墊圈         

    5   2131 A010  2   2131 A010  墊圈         

    6   ST43552    2   ST43552    螺拴         

    7   2134 A010  2   2134 A010  墊圈         

    8   2131 A010  2   2131 A010  墊圈         

    9   ST44456    6   ST44456    螺拴         

    10  2134 A010  6   2134 A010  墊圈         

    11  ST43557    2   ST43557    螺拴         

    12  2134 A010  2   2134 A010  墊圈         

    13  2131 A010  2   2131 A010  墊圈         

    14  ST43583    2   ST43583    螺拴         

    15  2134 A010  2   2134 A010  墊圈         

    16  2131 A010  2   2131 A010  墊圈

    項目   零配件號碼    最近的部分號碼    描述      

    1      1      凸輪軸傳動機構(gòu)          

    2      1      凸輪軸傳動機構(gòu)          

    3      1      凸輪軸傳動機構(gòu)          

    4      1      高壓油泵傳動機構(gòu)        

    5      2      推拔瓦       

    6   CV70056    1   CV70056    混合傳動機構(gòu)        

    6   CV7866 1   CV70056    混合傳動機構(gòu)        

    7   CV7868 1   CV7868Z    混合傳動機構(gòu)        

    10  CV17071    12  CV17071    固定螺釘         

    11  ST43056    12  2131 A008  墊圈         

    12  ST45778    1   ST45778    彈簧銷       

    13  CV13003    2   CV13003Z   車橋         

    16  CV8666 2   CV8666 鎖定板       

    17  CV11604    2   CV11604    推力板       

    18  CV430  4   CV430  止推片       

    19  CV1412 1   CV1412Z    惰輪傳動機構(gòu)        

    22  CV12174    6   CV12174    螺拴         

    23  CV1414 1   CV1414Z    惰輪傳動機構(gòu)        

    26  CV329  2   CV329  車橋         

    27  ST43058    2   2131 A012  墊圈         

    28  CV1415 1   CV1415 惰輪傳動機構(gòu)        

    31     1      油泵傳動機構(gòu)        

    32  CV1381 2   CV1381 止推片

    項目   零配件號碼    最近的部分號碼    描述      

    14  CV12820    1   CV12820    車橋         

    15  CV2491 1   CV2491 間隔器           

Clean all of the components; use a cleaning fluid

which can be diluted with water and refer to section 10

for relevant information.  To remove heavy carbon

deposits from most components: soak them in

solutions of ’Maxan’ or ’Ardrox 667’.

Caution: Do not use the ’Maxan’ or ’Ardrox’

processes on the valve springs or the surface finish

will be damaged.

If cup plugs were removed, before the cylinder head

was cleaned, they must be renewed before the

cy linder head is given a test under pressure. Apply

’Loc tite 575’ to the new cup plugs and insert them into

their correct locations in the cylinder head.  Us e the

relevant kit of remov al/replacer tools for the cup

plugs.

Make, locally, enough seals to close all of the

openings for coolant and fit them to the cylinder head.

Connect a pipe from a supply  of air to the coolant

galleries. Apply air at a pressure of 207 kN/m² (30 lbf/

in²).

Caution: Do NOT exceed 207 kN/m² (30 lbf/in²) as

damage may be caused.

Put the cylinder head in a tank of water which is at a

temperature of 60°C (140°F) and inspect for bubbles

from around all the cup plugs and injector sleeves.

Renew plugs or sleeves which are not fully sealed.

Remove the seals from the openings for coolant.

Inspect the flame face for s igns of damage.  If

necessary, the face may be reconditioned by surface

grinding, in four stages, to a maximum of 0,51 mm

(0.020 in).  Information about work done must be

etched on an area of the flame face which is not under

the gasket of the cylinder head.

Caution: When a cylinder head flame face has been

machined, the valve seats must be re-cut to maintain

the correct distance between the valve faces and the

flame face of the cylinder head.  See fits and

clearances on page 60.

Perkins Engines Company Limited

45

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12

To correct a valve seat

Special tools:

Valve seat tool, 21825 841

Valve seat cutter, 21825 842

12-12

It is recommended that all the valve guides are

inspected, and renewed as necessary, before the

work is begun on the v alve seat inserts.  Ensure that

the bores of the guides are within the limits given at

the end of this  section.

1  Inspect the inserts for erosion and cracks. If it is

necessary to correct the inserts, lightly lap the faces

of the valve seats and their relevant valves. To correct

the faces of more badly damaged valve seats, use the

valve seat tool, 21825 841, and the cutter, 21825 842,

together with the relevant pilot. To use the tool, fit the

guide (A) and proceed as s hown (B).  Ensure that the

cutter is correct for the angle of the v alve seat, which

is giv en on page 60.  The surface finish of the valve

seat will be improved if a compressed air supply is

used to remove debris during this  operation.

Warning!  Ensure that eye protection is used during

the above operation.

Caution: During the correction of a valve seat it is  

important to remove only the minimum amount of

material.

2  After the inspection and correction of a valve seat

and the relevant valve, fit the valve into the guide and

check the depth of the head of the valve below the

flame face.  If the depth is more than the limits given

on page 60 use a new valve to check again.  If the

depth is then within acceptable limits, the new valve

must be fitted to the valve seat when the cy linder

head is assembled.

3  To ensure that the valve is fitted in its correc t

position, the number of the cylinder and the position

of the valve must be etched above the collet groove

on the valve stem.  Valves  must not be stamped or

A

B

222

223

marked with a centre punch, because crack s may

occur.

If the depth still exceeds the acceptable limits, a new

valve seat insert must be fitted.

46

Perkins  Engines Company Limited

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12

To remove a valve seat insert

Special tools:

Holder, 21825 892

12-13

Cutter for the removal of valve seats, 21825 893

Expendable extractor, 21825 896

Caution: Before a valve seat insert for an exhaust

valve can be removed, the edge of the casting of the

cy linder head, which is rolled over the insert, must be

cut away (A). A special cutter, 21825 893, and holder,

21825 892, are available for this purpose.

1  If the relevant valve guide has not been removed,

and its bore is within the acceptable limits, turn the

cy linder head onto its side and slide the expendable

extractor, 21825 896, into the valve guide, until the

head is in contac t with the valve seat insert.

2  Weld electrically, at two or three equally spaced

positions around the circumferenc e, the expendable

extractor to the valve seat insert.  Make the welds no

larger than is necessary in order to prevent damage

to the cylinder head.

3 Use a soft faced hammer on the end of the stem of

the expendable extractor to remove the old valve s eat

insert from its  recess (B).

The expendable extractor may  be used again if the

welds and the old valve seat insert are removed and

the head is ground lightly to eliminate the protrusions.

A

224

B

225

Perkins Engines Company Limited

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12

is given below:

1  Fasten securely  the cylinder head on a milling

machine, and use a slot drill of approximately 10 mm

seat insert (A3). The depth of the slots should be 0,50

mm (0.020 in) less than the depth of the valve seat

insert.  The minimum depth of the insert is 7,95 mm

(0.313 in).  The slots should be apart by

Machine the slot to within 0,5 mm (0.020 in) of the

outside diameter of the insert.

2  Use a flat chisel, at the point which is indicated by

the arrow (A2) and in the direction of the opening in

the insert, to break the insert.  Do not damage the

recess during this operation.

3  Remov e the insert and check that the recess is

clean and that there is no damage.

To fit a valve seat insert                12-14

Special tools:

Valve seat tool, 21825 841

Valve seat cutter, 21825 842

Drive handle, 21825 861

Tool to insert valve seat, 21825 867

Holder for rolling tool, 21825 892

Rolling tool, 21825 894

A

34

1  Valve seat inserts are available in two sizes,

oversize and standard. The oversize inserts are 0,05

mm (0.002 in) larger on the outer diameter.  If an

oversize insert is to be fitted, ensure that it has the

correct part number: CV 14128 for an inlet seat or OE

47574 for an exhaust seat.  Check als o that the wall

of the recess in the cylinder head will maintain the

correct interference fit, as given on page 60.

2 Cool the valve seat insert in liquid nitrogen to -35°C

(-31° F). Use the special tool, 21825 867, (B1) and the

B

226

handle, 21825 861 (B2), to fit the relevant insert into

its rec ess as rapidly  as possible.

3  Use a 0,04 mm (0.0015 in) feeler gauge to c heck

that the bottom of the new insert is in full contact with

the bottom of the recess.

If a new v alve seat insert has been fitted for an

exhaust valve, the edge of the casting of the cylinder

head must be rolled over the chamfer which is around

the circumference of the insert. Proceed as follows :

4 Fasten securely the cylinder head on a s uitable drill

machine with the flame face in the upper position and

fit the rolling tool, 21825 894, and holder, 21825 892,

to the machine.

48

Perkins  Engines Company Limited

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12

5  Apply clean engine lubricating oil to the rollers, to

the face at the end of the tool and to the c ounterbore

in the cylinder head.

6  Insert the rolling tool in the valve guide and turn

slowly the rolling tool.  Apply enough pressure to

spread the material of the cylinder head over the

chamfer of the valve seat insert. Ensure that the face

at the end of the tool is suitably lubricated before the

face at the end of the tool is in contact with the top

face of the insert (A).  When this occurs, the cylinder

head is fully rolled over the insert, and the tool can be

removed.

7  Use the valve seat cutter, 21825 842, and the

relevant pilot, to machine to the correct angle, the

seats which have been renewed.  Ensure that the

cutter is correct for the angle of the valve seat, which

is given on page 60.  Lap the valves to the seats.

Clean thoroughly the area around the valv es and the

seats and use engineer’s blue to check that the fac es

of the valves are in full contact across and around the

faces of the valve seats.

8  Fit the valves in their relevant seats and use a

straight edge and a feeler gauge to check that the

clearances between the heads of the valves and the

flame face are within the limits given on page 60. If a

clearance is excessive, a new valve must be fitted.

The number of the cylinder and the position of the

valve should be etched above the collet groove on the

A

227

valve stem.  Valves must not be stamped or marked

with a centre punch, because cracks may occur.

To inspect the valve guides            12-15

Check the clearance of each valve stem in its guide.

This must be within the limits given on page 59.  If the

clearance is excessive, use a new valve to check

again.  If the c learance is still excessive, a new valve

guide must be fitted.

Perkins Engines Company Limited

49

This document has been printed from SPI². Not for Resale

12

To renew a valve guide

Special tools:

Reamer for exhaust valve guides, 21825 755

Reamer for inlet valve guides, 21825 756

Valve seat tool, 21825 841

Valve seat cutter, 21825 842

Remover for inlet valv e guides, 21825 885

12-16

Remover for exhaust valve guides, 21825 886

Replacer for inlet valve guides, 21825 887

Replacer for ex haust valv e guides, 21825 888

Use the extractors: 21825 885 (inlet valves) or 21825

886 (exhaust valves), and the replacer tools 21825

887 (inlet valves) or 21825 888 (exhaust valves),

together with a suitable press.

1  Use the relevant extractors to press out the valve

guides that need to be renewed.  Check the bores in

the cylinder head for wear or damage. See SRS 135

for instructions to correct worn bores.

2  Apply clean lubricating oil to the new guide before

it is inserted in the top end of the bore.

Caution: The guides for the inlet valves must be

inserted with the tapered end downward. The guides

for the exhaust valves must be inserted with the

internal chamfer, which is at one end of the bore, at

the top.

3  Fit the relevant replacer tool onto the guide and

press the guide in until the replacer tool is in c ontact

with the cylinder head (A).  This will give the correct

protrusions of 12,8 mm (0.50 in) for the guides of the

inlet valves and 17,85 mm (0.70 in) for the guides of

the exhaust valves.

Caution: If liquid air is available, it may be help if the

new valve guide is cooled immediately before it is

fitted.

4 Use the correct reamer to ream the new valve guide

(B) and check the bore with the relevant plug gauge.

Use the reamer 21825 756 for inlet valve guides and

21825 755 for exhaust valve guides.

If new valve guides have been fitted, the relevant

valve seat insert must be corrected.  Use the special

tool, 21825 842, to ensure concentricity.

A

230

B

231

50

Perkins  Engines Company Limited

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12

12-17

Inspect the bridge pieces and the adjustment screws

for wear.  Use a new guide as a gauge to c heck the

bores in the bridge pieces.  Similarly, use a new

bridge piece to check the guides.  Renew

components which have excessive wear.

Special tools:

Extractor for valve bridge guides, 21825 889

12-18

Depth plate for valve bridge guides, 21825 890

Use the extractor, 21825 889, to withdraw a worn

guide from its bore in the cylinder head (A).  Clean

thoroughly the bore.

Apply  ’Loctite 648’ to the area of the new guide which

is an interference fit in the cylinder head and use a

press to insert the guide into the c ylinder head.  To

obtain the correct protrusion, fit the depth plate,

21825 890, ov er the guide and press the guide into its

bore until the top face is aligned precisely with the top

face of the depth plate (B).

A

232

B

233

Perkins Engines Company Limited

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12

To recondition a fuel injector sleeve

Special tools:

12-19

Tool holder for face cutter and reamer, 21825 765

Face cutter, 21825 767

Reamer, 21825 768

Service kit for fuel injector sleeves, 21825 915

Caution:

The fuel injector sleeves may be renewed

without the removal of the cylinder head from the

engine.  In this situation, the coolant must be drained

until the level is below the cylinder head and the

piston, which is  below the faulty fuel injector sleeve,

must be moved to BDC.

1  Use the integral face cutter and reamer to remove

deposits of carbon and to correct the face of the seat,

or the bore at the smaller internal diameter of the

injector sleeve (A).  If the work is done without the

removal of the cylinder head from the engine, the

cutter and the reamer must be given a full application

of grease to retain the particles of the carbon and the

debris.

Caution: When the face cutter is used, remove only

the minimum material that is necessary to correct the

seat.  The maximum permissible depth of the seat

from the top face of the cylinder head is 104,25 mm

A

237

(4.104 in).

52

Perkins  Engines Company Limited

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