300TD (123.193) L5-3.0L DSL Turbo (617.952) (1984)
Injection Timing: Testing and Inspection
Flow Pressure Method
CHECKING INJECTION TIMING (BEGIN OF DELIVERY) (FLOW PRESSURE METHOD)
Test value
Start of delivery before TDC in compression stroke +24 ± 1°
Attention! While conducting measurement, move injection pump control lever to full-load stop and disconnect vacuum hose from vacuum
control unit.
Tightening torques
Pipe connection for delivery valves ....................................................................................................................................... 40-50 Nm (29-37 ft lb)
Injection lines ................................................................................................................................................................................ 25 Nm (18.5 ft lb)
Special tools
Conventional tool
Torque wrench 1/2" drive, 15-65 Nm
Testing
1. Clean injection pump at injection line cap nuts and pipe connections.
2. Pull vacuum line from vacuum control unit.
3. Unscrew injection line of No.1 cylinder.