Intake And Exhaust Valves - Removal

REMOVAL

Special Tools:










1. Disconnect both negative battery cables.
2. Remove the cylinder head cover Cylinder Head Cover(s) - Removal.
3. Disconnect the injector harness connectors at cylinder head cover gasket. Remove all injector solenoid nuts. Remove cylinder head cover gasket.
4. Remove injector(s) for cylinder(s) to be serviced. Fuel Injector - Removal or Fuel Injector - Removal
5. Remove the rocker housing.
6. Remove the rocker arms and crossheads from the cylinder(s) to be serviced. Mark each component so they can be installed in their original position.
7. Remove bolts (1) and the bell housing access cover (2).






NOTE: At this engine position, cylinders No. 1 and No. 6 can be serviced.

8. Using the barring tool (1), rotate the engine to position the damper mark in the 12 o'clock position.
9. Remove the accessory drive belt Serpentine Accessory Drive Belt - Removal.
10. With the damper TDC mark in the 12 o'clock position, add a paint mark anywhere on the gear housing cover next to the crankshaft damper. Place another mark on the vibration damper in alignment with the mark you just made on the cover.
11. Divide the crankshaft damper into three equally sized segments as follows:
a. Using a tape measure, measure the circumference of the crankshaft damper and divide the measurement by three (3).
b. Measure that distance in a counterclockwise direction from the first balancer mark and place another mark on the balancer.
c. From the second damper mark, again measure in a counterclockwise direction and place a mark on the damper at the same distance you measured when placing the second damper mark. The damper should now be marked in three equally spaced locations and the damper TDC mark should be in the 12 o'clock position.
d. Remove injectors, fuel lines, and high pressure connectors for every cylinder that requires repair.










12. Compress the valve springs at cylinders. No. 1 and No. 6 as follows:
a. Install the Valve Spring Compressor Tool base (1) as shown.










13. Install the Valve Spring Compressor Tool top plate, washer, and nut. Using a suitable wrench tighten the nut (clockwise) to compress the valve springs and remove the collets.
a. Rotate the compressor nut counterclockwise to relieve tension on springs. Remove spring compressor.
b. Remove and replace retainers, springs, and seals as necessary.
c. Do not rotate the engine until the springs and retainers are reinstalled.
d. Install seals, springs and retainers. Install spring compressor, compress valve springs and install the collets.
e. Release the spring tension and remove the compressor. Verify that the collets are seated by tapping on the valve stem with a plastic hammer.






NOTE: In this position, cylinders No. 2 and No. 5 can be serviced.

14. Using the barring tool (1), rotate the engine until the next crankshaft damper paint mark aligns with the mark you placed on the cover.
15. Repeat the valve spring compressing procedure previously performed and service the retainers, springs, and seals as necessary.

NOTE: In this position, cylinders No. 3 and No. 4 can be serviced.

16. Using the barring tool , rotate the engine until the next crankshaft damper paint mark aligns with the mark you placed on the cover.
17. Repeat the spring compressing procedure previously performed and service the retainers, springs, and seals as necessary.