Injection Timing With Digital Tester
CHECKING/ADJUSTING SPECIFICATIONS:Checking: 14+0.5°
Adjusting: 14+0.5°
Values are for Reference Impulse test method only.
TORQUE SPECIFICATIONS:
Closing plug to regulator (measuring point): 3O-35Nm
Injection pump flange 20-25Nm
TEST EQUIPMENT:
For Use With Adapter:
Digital testers: Bosch, MOT 001.03 or Hartmann & Braun, EOMT 3
For Use Without Adapter:
Digital testers: Bosch, ETD 019.00 or Sun, DIT 9000 or AVL, Diesel Tester 875.
DIGITAL TESTER CONNECTIONS:
With Adapter:
Connection diagram for available testers for use with adapter.
e.g. Bosch MOT 001.03 or Hartmann & Braun, EOMT 3
001 Digital tester
010 Adapter
011 Trigger clamp
015 Test cable with connector
016 Diagnostic socket
017 RI-transmitter
021 TDC-impulse transmitter
2 Governor
2i RI-transmitter pin
59 TDC-transmitter
Without Adapter:
Connection diagram for testers for use without adapter
e.g. Bosch ETD 019.00, SUN DIT 9000, AVL Diesel-Tester 875
001 Digital tester
015 Test cable with connector
016 Diagnostic socket
017 RI-transmitter
021 TDC-impulse transmitter
2 Governor
2i RI-transmitter pin
59 TDC-transmitter
PROCEDURE:
Checking:
- Remove air cleaner cover (arrows).
- Remove plug (11) on injection pump.
NOTE: Catch escaping oil.
- Install RI-transmitter on injection pump (arrow).
- Install TDC-impulse transmitter (021) on holder (arrow).
- Connect digital tester according to connection diagram.
- Read RI-value (indirect injection timing) at idle speed on digital tester.
RI-nominal value: 14°+0.5° ATDC
Adjusting:
- Loosen mounting bolts (arrows) at injection pump flange.
- Loosen bracket mounting bolt (arrow).
- Run engine at idle speed.
- Adjust RI value (indirect injection timing) by turning adjusting screw.
Adjustment screw direction:
Right = Retard injection timing
Left = Advance injection timing
NOTE: If the adjustment range is inadequate, the pump must be removed, repositioned and reinstalled.
- Turn engine off.
- Disconnect tester.
- Install screw in plug on injection pump and torque to 30-35 Nm.
- Torque mounting bolts on injection pump flange and bracket to 20-25 Nm.
- Check regulating linkage, and adjust if necessary.
- Check for leaks with engine running.
- Check engine oil level, and correct if necessary.