Injection Timing: Testing and Inspection

Check start of delivery with digital tester

ENGINE 603.971, 606 with CODE (491) U.S. version






Connection diagram for tester with adapter

001 Digital tester
010 Adapter
011 Trigger clamp
015 Test cable with plug
016 9-pin diagnostic socket at TDC impulse transmitter (021)
017 RI sensor
021 TDC impulse transmitter
2i RI sensor pin
10/5 Screw plug
10/6 Governor body
59 Top dead center sensor pin






Connection diagram for tester without adapter

001 Digital tester
015 Test cable with plug
016 9 pin diagnostlc socket at TDC impulse transmitter (021)
017 RI sensor
021 TDC[OT]sensor
10/5 Screw plug
10/6 Governor body
59 Top dead center sensor pin
G1 Battery

Danger! Risk of accident. Accidents may result if the vehicle starts off unintentionally with the engine running. Secure vehicle to prevent it from moving. Risk of injury as working around then engine during start-up or while running may result in contusions and burns. Wear closed and snug-fitting work clothes. Do not grasp rotating of moving parts

Test values of IFI injection pump

Start of delivery: RI value (indirect start of delivery ATDC) CKA° 14 to 14.5






Injection pump, unit pump, high pressure pump






Special tools






Commercially available tools