Injection system,  OM617

Removal and installation of injection pump

 

 

07.1—200 Removal and installation of injection pump

 

Job no. of flat rates or standard texts and flat rates data 8410 or 8411, 8430, 8431.

 

Survey model — engine — injection pump

 

Model          Engine
njection pump
Regulator
Delivery pump
Test values
3osch designation
Bosch designation
Bosch designation
IB-sheet

 

 

 

Edition

 

Standard version up to 1980

 

123.193 617.952
PES 5 MW 55/320 RS 16
RW 375/2200 MW 28-1
FP/K 22 MW 22
3.0 g
5th edition

 

Standard version starting 1981

 

123.193 617.952
PES 5 MW 55/320 RS 16
RW 375/2200 MW 28-33)
FP/K 22MW8
3.0 g
1st edition

 

(usa) 1978/1979         Identification: Green type rating plate

 

116.120 617.950
PES 5 MW 55/320 RS 16
RW 375/2200 MW 22
FP/K 22MW8
3.0 g
4th edition

 

(usa) 1980

 

RW 375/2200 MW 22

 

116.120 617.950
PES 5 MW 55/320 RS 16
RW 375/2200 MW 282
FP/K 22 MW 22
3.0 g
4th edition

 

(usa) 1981

 

123.193 617.952
PES 5 MW 55/320 RS 16
RW 375/2200 MW 28-1
FP/K 22MW22
3.0 g
5th edition
126.120 617.951

 

<@) starting model year 1982

 

123.133
123.153 617.952
123.193
PES 5 MW 55/320 RS 16

om617 - 0283-1.jpg

RW 375/2200 MW 28-3
FP/K 22MW22
3.0 m
1st edition
126.120 617.951

 

07.1.8-200/1 F3

 

 

 

(usa) starting model year 1984 California

 

123.133
123.153 617.952
123.193
PES 5 MW 55/320 RS 16-1
RW 375/2200 MW28-33)
FP/K 22 MW 22
3.0 m
1st edition

 

126.120 617.951

 

‘    Accurate checkup and adjustment of injection pump is possible on an injection pump test bench only. For workshops, where
.   such a test bench is installed, test sheets for the different pumps are available.
‘    Entering production starting February 1980.
‘    Reference impulse verification (RIV), dynamic injection timing (begin of delivery) test possible.

 

Tightening torques
Nm
Pipe connection for delivery valves
40-50
Injection lines
25

 

Special tools
Socket 13 mm, 3/8″ drive
Box wrench socket open, 17 mm, 1/2″ drive for injection lines
Overflow pipe
Conventional tool
Torque wrench 1/2″ drive, 15-65 Nm
om617 - 0284-1.jpg
000 589 21 07 22 000 589 68 03 00
636 589 02 23 00

 

07.1.8-200/2 F3

 

 

 

Removal
om617 - 0285-1.jpg
1        Detach vacuum line at vacuum control unit and at vacuum control valve for automatic trans­mission.
2        Unscrew delivery line at aneroid compensator.

 

3 Disconnect electric cable at temperature sensor, detach control rod, unscrew injection lines and fuel lines at injection pump. Clip caps onto connec­tions for injection lines and fuel hoses at injection pump.

 

4 Unscrew lubricating oil line (5).
Attention:
Prior to removal of lubricating oil line (5), clean connecting points.
om617 - 0285-2.jpg

 

5 Unscrew and remove upper part of oil filter so that engine oil can return to oil pan.
om617 - 0285-3.jpg

 

07.1.8-200/3 F2

 

 

 

6 Unscrew hex-head bolts at supporting holder (4) as well as 3 nuts holding injection pump. Release feastening bolt (3) to provide adjustment within oblong hole.
om617 - 0286-1.jpg

 

7        Unscrew all engine oil lines at oil filter body, releasing clamps for this purpose.
8        Unscrew and remove oil filter body from crankcase (18-110).
Attention:
When removing gasket, make sure that no remains drop into oil passages.
9        Withdraw injection pump from crankcase. Detach coupling sleeve from injection pump driver or from drive shaft.
om617 - 0286-2.jpg

 

Note: If driver is to be exchanged, lock driver with serrated wrench and release hexagon nut. Then re­move driver from injection pump shaft using puller. Clean axle stub and driver, making sure that both cones are absolutely clean and dry.
When fitting a new driver, note Woodruff key and marks (arrows).
om617 - 0286-3.jpg

 

Installation

 

Attention:
Prior to installing a replacement injection pump, remove screw plug (arrow) and fill with 0.4 I engine oil (first filling).
om617 - 0286-4.jpg

 

07.1.8-200/4 F2

 

 

 

10 Check whether connecting rod (5) is correctly set, moving control lever (1) to full-load stop (2) for this purpose. Operating lever (8) must have approx. 0.5 mm clearance from full-load stop (6).
If necessary, adjust connecting rod (5) at adjustable knuckle (4).
om617 - 0287-1.jpg
1    Control lever
2    Full-load stop
3    Idle speed stop
4   Adjustable knuckle
5   Connecting rod
6   Full-load stop at vacuum control valve
7   Vacuum control valve
8   Operating lever for vacuum control valve

 

11 Detach supporting holder (4) from removed injection pump and bolt to injection pump for installation. Do not tighten fastening bolt (3) be­cause adjustment within oblong hole is still necessary.
om617 - 0287-2.jpg

 

12 Move crankshaft to start of delivery in com­pression stroke.
om617 - 0287-3.jpg

 

07.1.8-200/5 F2

 

 

 

13      Fit new gasket.
14      Move injection pump to mark, turning injection pump camshaft until mark on camshaft agrees with line on flange (arrow).
Attention!
On Bosch production code number “251” (November 1982) the mark for begin of delivery may be applied to the wrong spot on bearing cap.
om617 - 0288-1.jpg
Mark on bearing cap correct
(approx. center of bearing cap screw)

 

Note
om617 - 0288-2.jpg
When installing an injection pump with wrong mark on bearing cap, the pinion should be positioned in such a manner that the recess is 3 teeth to the left on the mark of the bearing cap. In this position the injection pump is at begin of delivery (basic position). The engine should be at 24° before TDC, as usual.
Marking on bearing cap wrong
(approx. lefthand edge recess of oil overflow)

 

15      Slip coupling sleeve onto driver and insert injection pump. Fit washers and slightly tighten fastening nuts of injection pump.
16      Check and adjust start of delivery (07.1-110 and 115).

 

17      Tighten injection pump fastening nuts and attach supporting holder (4) to crankcase. Now tighten fastening bolt (3) in oblong hole of support­ing holder. Supporting holder is to be fastened with shims as per part No. 116 990 14 40 and hex-head bolts M 8x 16.
18      Reconnect lubricating oil line to injection pump.
om617 - 0288-3.jpg

 

07.1.8-200/6 F3

 

 

 

19      Fit oil filter and oil filter cover with new seal.
20      Connect all oil lines to oil filter.
21      Attach temperature sensor cable, connect charge air line and vacuum lines to injection pump, and fit all fuel lines.
om617 - 0289-1.jpg

 

22   Vent injection system with hand delivery pump (07.1-140).
23  Check throttle linkage and adjust, if required {30-300).
24   Run engine to operating temperature and check all connections for leaks.
25  Check idle speed and adjust, if required (07.1- 100).

 

26 Adjust damper for regulator. If a damper (6) is installed on regulator of injection pump, adjust at idle against transverse vibrations of engine.
For this purpose, loosen counter nut (7).
Adjust damper (6) at idle speed, screwing damper in until transverse engine vibrations have been remedied. Then tighten counter nut (7) to 20—25 Nm.
om617 - 0289-2.jpg
6    Damper
7    Counter nut

 

07.1.8-200/7 F3

 

 

 

Fuel filter

 

om617 - 0290-1.jpg

 

1
2 3 4 5 6
Leak-off hose from injection nozzle
Union screw
Sealing ring
Banjo connector
Union screw
Sealing ring
7    Union screw
8   Sealing ring
9   O-ring
10    Hose clamp
11    Expansion hose
12    Return line from bypass valve
13   Bypass valve
14    Fuel line
15    Fuel line
16    Upper part of fuel filter
17    Fuel filter
30    Injection pump

 

07.1.8-200/8 F3

 

 

 

Mixture Control

 

om617 - 0291-1.jpg

 

1
Leak-off hose
23
Seal
44
2
Stopper
24
Snap ring
45
3
Injection nozzle, upper part
25
Gasket
46
3a
Steel shim
26
Nut
47
4
Compression spring
27
Lock washer
48
5
Thrust pin
28
Drive pinion
49
6
Nozzle holder insert
29
Woodruff key
50
7
Nozzle body
30
Injection pump
52
8
Injection nozzle, lower part
31a
Gasket
53
9
Nozzle plate
31b
Steel washer
54
10
Injection line
32a
Vacuum control unit
55
11
Injection line
32b
Flange
56
12
Injection line
33
Washer
57
13
Injection line
34
Bolt
58
14
Injection line
35
Return spring
58a
15
Bolt
36
Holder
59
16
Pipe holder
37
Washer
60
17
Nut
38
Bolt
61
18
Pipe connection
39
Nut
62
19
Compression spring
40
Washer
63
20
Delivery valve
41
Woodruff key
64
21
Delivery valve holder
42
Idler gear shaft
75
22
Copper sealing ring
43
Thrust ring

 

Socket
Segment for injection timing device
Centrifugal weight
Pin
Compression spring
Pin
Segmental flange
Waisted bolt
Washer
Nut
Gasket
Hand-operated fuel feed pump
Rubber sealing ring
Socket
Sealing ring
Fuel feed pump
Screwed union
Sealing ring
Compression spring
Delivery and suction valve
Aneroid compensator
Vacuum control valve

 

07.1.8-200/9 F3