Page 765 of 2053
OM600 ENGINE CONTROLS 1F3 -- 3
D AEW OO M Y_2000
FUEL INJECTION PUMP CODING
Model Code
OM661 LA EnginePES 4M 55C 320 RS 167
OM662 LA EnginePES 5M 55C 320 RS 168
Fuel Injection Pump Code
Example) PES 5M 55C 320 RS 168
PPump
E Self -- Driven
S End Flange Mounting
5 Number of Cylinders (5EA)
MPumpSize
55 Element Diameter
C Modification Letter
320 Assembly Number
R Direction of Rotation (clockwise)
S188 Special Version
RSF Governor
R Governor
S Coil Spring
F Drive Governor
Component Location
1. Fuel Injection Pump
2. Vacuum Unit (Stop Unit)
3. Control Lever
4. PLA Vacuum Unit (Idle Speed Adjustment)
5. Governor
6. Fuel Pump
Page 786 of 2053
OM600 ENGINE CONTROLS 1F3 -- 29
D AEW OO M Y_2000
REMOVAL AND INSTALLATION OF INJECTION TIMING DEVICE
Preceding Work : Removal of vacuum pump
1 Cylinder Head Cover
2 Bolt 10N∙m (89 lb-in) .....................
3 Gasket Replace..........................
4 Fuel Injection Pump
5 Seal Replace.............................
6 Screw Plug 30N∙m (22 lb-ft) ................
7OilPan
8 Locking Pin
9 Injection Timing Device10 Washer
11 Bolt (Left -- Hand Thread) 46N∙m (34 lb-ft) ....
12 Camshaft Sprocket
13 Washer
14 12-- Sided Stretch Bolt
Check, 25N∙m (18 lb-ft) +90_ ..............
15 Timing Chain
16 Seal
17 Chain Tensioner 80N∙m (59 lb-ft) ............
Page 788 of 2053
OM600 ENGINE CONTROLS 1F3 -- 31
D AEW OO M Y_2000
4. Position the no.1 cylinder at ATDC 15_.
Notice
Do not rotate the engine with camshaft sprocket bolt
or opposite direction of the engine rotation.
5. Remove the plug (6) and seal (5) from the fuel injec-
tion pump and collect oil in a suitable vessel.
Installation Notice
Tightening Torque30 N∙m (22 lb-ft)
Notice
Replace the seal.
6. Install the locking screw (18) into the injection pump.
Notice
Before tightening the bolts for the injection timing
device and the camshaft sprocket, always remove
the locking screw from the injection pump and rein-
stall the plug.
Locking Screw 601 589 05 21 00
7. Place alignment marks (arrow) on the timing chain
(12) and camshaft sprocket (15).
Page 794 of 2053
OM600 ENGINE CONTROLS 1F3 -- 37
D AEW OO M Y_2000
Tools Required
617 589 08 21 00 Position Sensor
Test Procedure
1. Remove the screw plug (5) and seal (4) and collect
oil in a suitable vessel.
2. Install the position sensor (1) into the governor
housing of the injection pump to be the guide pin of
the position sensor facing up.
3. Connect the battery terminal of position sensor (1)
to positive terminal (+) of battery.
Position Sensor 617 589 08 21 00
4. Rotate the crankshaft by hand (in direction of engine
rotation) until the lamp ’B’ lights up. Rotate the
crankshaft carefully further until both lamps ’A and
B’ come on. In this position, check the Rl value on
the crankshaft vibration damper.
SpecificationAT DC 1 4_-- 1 6_
Notice
If only lamp ’A’ lights up, repeat the test and if out of
specification, adjust start of delivery.
Page 797 of 2053

1F3 -- 40 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Tools Required
617 589 09 21 00 Rl Sensor
617589102100 TimingTester
667589002100 TDCPulseGenerator
Commercial Tools
ItemTools
Digigal TesterWith Pulse GeneratorBosch, MOT 001.03gg
Hartmann & Braun, EOMT3
Without Pulse GeneratorBosch, ETD 019.00
Sun, DIT 9000
ALV, Diesel -- Tester 875
Test Procedure
1. Remove the screw plug (7) and seal (8) collect oil in
a suitable vessel.
2. Install the Rl sensor into the governor housing of in-
jection pump (1).
Rl Sensor 617 589 10 21 00
3. Connect the digital tester and TDC pulse sender unit
according to connection diagram.
4. Run the engine at idle speed and check the Rl value
on the digital tester
Rl valueAT DC 1 4_-- 1 6_
Notice
If out of standard, adjust the start of delivery.
5. Stop the engine.
6. Remove the Rl sensor, digital tester and TDC pulse
sender unit.
7. Replace the seal and tighten the plug.
8. Check engine oil level and adjust if necessary.
Tightening Torque30 N∙m (22 lb-ft)
Page 802 of 2053
OM600 ENGINE CONTROLS 1F3 -- 45
D AEW OO M Y_2000
FUEL INJECTION PUMP
Preceding Work : Removal of vacuum pump
Removal of air cleaner housing
Removal of intake manifold
18 Chain Tensioner 80N∙m (59 lb-ft) ............
19 Seal Replace.............................
20 Bolt(Left -- Hand Thread) 46N∙m (34 lb-ft) .....
21 Washer
22 Bolt 23N∙m (17 lb-ft) .....................
23 Seal Replace.............................24 Oil Pan
25 Fuel Injection Pump
26 Seal Replace.............................
27 Screw Plug 30N∙m (22 lb-ft) ...............
28 Square Nut
Tools Required
000 589 77 03 00 Box Wrench Insert
601 589 00 08 00 Flange
601 589 05 21 00 Locking Screw
601 589 05 14 00 Assembly CageRemoval
Page 805 of 2053
1F3 -- 48 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Installation Procedure
1. Remove the screw plug (27) and seal (26) and col-
lect oil in a vessel.
2. Insert flange (31) onto the injection pump camshaft
and turn until the cam of the governor is visible in the
hole.
Flange 601 589 00 08 00
3. Tighten the locking screw.
Locking Screw 601 589 05 21 00
4. Ensure that the No.1 cylinder is positioned at ATDC
15_.
Page 806 of 2053
OM600 ENGINE CONTROLS 1F3 -- 49
D AEW OO M Y_2000
5. Coat the new seal (23) with engine oil and install it.
6. Insert the fuel injection pump (25) and tighten the
bolts (22).
Tightening Torque23 N∙m (17 lb-ft)
7. Remove the locking screw (32).
8. Tighten the bolt(12).
Tightening Torque23 N∙m (17 lb-ft)
9. Insert the washer (21) and tighten the bolts (20) and
then remove the assembly cage (29).
Tightening Torque46 N∙m (34 lb-ft)
10. Connect the fuel pipes.
Return Line46 N∙m (34 lb-ft)
Fuel Injection Line18 N∙m (13 lb-ft)
Fuel feed Line13 N∙m (10 lb-ft)
Suction and Pressure Line13 N∙m (10 lb-ft)
Notice
Replace the seal.
Box Wrench Insert 000 589 77 03 00