Detroit Diesel EPA07 Series 60 DDEC VI Troubleshooting Manual page 214

13.9 COMBUSTION GASES IN COOLANT
7. Remove all the rocker shaft mounting bolts and nut from the front or rear rocker shaft
assembly. Using rocker arm lifter (J–35996–A), see Figure 13-2, lift the assembly straight
up and off of the head and place in a clean area on the bench.
Figure 13-2 Rocker Arm/Shaft Assembly Removal/Installation
8. Use tool J-47808 to remove the 4–pin electrical connection from the injector.
9. Disengage the locking tang on the harness plug connection, grasp the connector and
gently pull it from the socket.
10. Remove the injector hold down clamps.
Use extreme care when handling injectors to avoid costly
damage by dropping or mishandling. Always install new O-rings
when replacing injectors.
11. Remove the three injectors to be tested from the cylinder head.
12. Place the compression test adaptors (J-47373) into the injector holes. It is recommended
to have three test adaptors (J-47373) when performing this routine.
13. Install the injector hold down clamps and torque hold down bolts to 58-66 N·m (43-49
lb·ft).
14. Carefully remove the shaft from the rocker arm assembly by slowly pulling it out of the
assembly. Place the shaft on the bench. Do not disturb the stack-up of the rocker arm sets.
15. Remove the three injector rocker arms and replace with spacers (J–38768–5) .
16. Lubricate the shaft with clean engine oil. With sleeves in place, carefully reinstall the shaft
through each rocker arm shaft. Make sure cup plug end faces inboard.
13-14
NOTICE:
Copyright © 2007 DETROIT DIESEL CORPORATION
All information subject to change without notice.