Page 627 of 1574
OM600 ENGINE CONTROLS 1F3-17
6. After adjustment, tighten the locking nut and place theposition marking with different color of paint. Notice If there are no changes in idle speed with PLA unit
adjustment, perform the service at a BOSCH Service Center.
7. Connect the vacuum pump to the PLA vacuum unit and build up vacuum approx. 500mbar. If engine rpm increases by approx. 100rpm, It is normal.
Vacuum Pump 001 589 73 21 00
8. Connect the vacuum line (4).
9. Switch on all ancillaries and check the idle speed.
5. Ensure not to damage the idle spring in the governor and adjust idle speed by turning the PLA unit (5) slowly. Notice Do not rotate the PLA unit over ½ turn from the position
marking. If do, idle spring in the governor will be severely damaged. Clockwise
Counterclockwise
RPM Decrease RPM Increase
Page 647 of 1574
OM600 ENGINE CONTROLS 1F3-37
START OF DELIVERY TEST (POSITION SENSOR, RIV METHOD)1 Position Sensor
2 Battery
3 Fuel Injection Pump 4 Seal
....................................................... Replace
5 Screw Plug ................................................. 30Nm
Service Data
Start of Delivery (RIV) ATDC 14° - 16 °
Page 650 of 1574
1F3-40 OM600 ENGINE CONTROLSStart of Delivery (RIV) Idle Speed
(Connection Diagram for Testers With Adapter)
1 Fuel Injection Pump
2 Rl Sensor
3 Digital Tester
4 TDC Pulse Sender Unit
5 Battery
6 Rl Pulse Generator
Service Data
ATDC 14° - 16 °
OM661LA : 720 - 820 rpm, OM662LA : 750 - 850 rpm
Page 654 of 1574
1F3-44 OM600 ENGINE CONTROLS
Tools Required 617 589 09 21 00 Rl Sensor
617 589 10 21 00 Timing Tester667 589 00 21 00 TDC Pulse Generator
Commercial Tools
Item
Digital Tester With Pulse Generator
Without Pulse Generator Tools
Bosch, MOT 001.03
Hartmann & Braun, EOMT3 Bosch, ETD 019.00
Sun, DIT 9000
ALV, Diesel - Tester 875
Digital tester (RIV Method)
1 Bolt
............................................................ 23Nm
2 Adjusting Screw ....... To the right : start of delivery retarded
To the left : start of delivery advanced 3 Bolt
............................................................ 23Nm
Service Data
Start of Delivery (RIV) Ldling Speed
ATDC 14 ° - 16 °
OM661LA : 720 - 820 rpm, OM662LA : 750 - 850 rpm
Page 662 of 1574
SECTION 1G1
M162 ENGINE INTAKE & EXHAUST
Specifications . . . . . . . . . . . . . . . . . . . . . . . 1G1-1Fastener Tightening Specifications . . . . . . . . 1G1-1
Maintenance and Repair . . . . . . . . . . . . . . 1G1-2
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 1G1-2
Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . 1G1-2
TABLE OF CONTENTS
Intake Air Duct . . . . . . . . . . . . . . . . . . . . . . . 1G1-4
Intake Manifold . . . . . . . . . . . . . . . . . . . . . . . 1G1-5
Resonance Flap . . . . . . . . . . . . . . . . . . . . . . 1G1-7
Exhaust Manifold . . . . . . . . . . . . . . . . . . . . . 1G1-9
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
N m
9 - 11
22.5 - 27.5 22.5 - 27.5 9.5 - 12.5 15 - 28 28 - 47
Application
Air Cleaner Housing Cover NutIntake Manifold Bolt (M8 x 20) Intake Manifold Bolt (M8)Exhaust Mainfold Stud BoltExhaust Pipe Nut (Engine) Exhaust Pipe Bolt
Page 663 of 1574
1G1-2 M162 ENGINE INTAKE & EXHAUSTMAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
AIR CLEANER
1 Air - Cleaner Assembly
2 Air - Cleaner Shield Upper Cover
3 Blot4 Blot
5 Air Intake Shield
Page 673 of 1574