Removal Of Valve Spring (Cylinder Head Installed) - Detroit Diesel EPA07 Workshop Manual

14.8

REMOVAL OF VALVE SPRING (CYLINDER HEAD INSTALLED)

14.8 REMOVAL OF VALVE SPRING (CYLINDER HEAD INSTALLED)

Remove and clean as follows:
1. Steam clean the engine.
2. Drain the fuel system. Refer to section .
3. Remove the rocker cover. Refer to section 1.2.
4. Remove the rocker arm assemblies. Refer to section 2.2.
5. Remove the intake and exhaust camshafts. Refer to section 2.2.
6. Remove the camshaft housing. Refer to section 3.1.
NOTE:
All valve spring or seal removal and replacement must be completed for each cylinder
being serviced while the piston is at Top Dead Center (TDC). After servicing a cylinder,
turn the crankshaft to TDC for the next cylinder being serviced.
7. Remove the fuel injector from the appropriate cylinder. Refer to section .
8. Using Engine Barring Tool (J-46392), bar the engine over until the cylinder is at Top
Dead Center (TDC).
To avoid injury from flying debris when using compressed
air, wear adequate eye protection (face shield or safety
goggles) and do not exceed 276 kPa (40 psi) air pressure.
9. Install the adaptor (J-47411) into the cylinder and torque to 20 N·m (14 lb·ft) plus 90
degrees with the injector hold-down clamp and bolt, connect shop air to compression
adaptor.
14-22
EYE INJURY
DDC-SVC-MAN-0081 2010 Copyright © 2010 DETROIT DIESEL CORPORATION
All information subject to change without notice.