Part 2

ENGINE UNIT

COMPONENTS:

COMPONENTS:

COMPONENTS:

COMPONENTS:

COMPONENTS:

COMPONENTS:

COMPONENTS:

COMPONENTS:

COMPONENTS:

DISASSEMBLY (STEPS 21-40)

21. REMOVE TIMING CHAIN COVER SUB-ASSEMBLY (w/Oil Pump)
22. SET NO. 1 CYLINDER TO TDC/COMPRESSION
a. Temporarily tighten the pulley set bolt.





b. Set the timing mark on the crank angle sensor plate to the RH block bore center line (TDC/compression).





c. Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration. If not, turn the crankshaft 1 revolution (360°) and align the timing marks as above.





23. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
a. Move the stopper plate upward to release the lock, and push the plunger deep into the tensioner.
b. Move the stopper plate downward to set the lock, and insert a hexagon wrench into the stopper plate hole.
c. Remove the 2 bolts and chain tensioner.
24. REMOVE CHAIN TENSIONER SLIPPER





25. REMOVE NO. 1 CHAIN SUB-ASSEMBLY
a. Turn the crankshaft counterclockwise 10° to loosen the chain of the crankshaft timing gear.
b. Remove the chain from the crankshaft timing gear and place it on the crankshaft.





c. Turn the camshaft timing gear on the RH bank clockwise (approximately 60°) and set it as shown in the illustration. Be sure to loosen the chain between the center banks.
d. Remove the chain.





26. REMOVE IDLE SPROCKET ASSEMBLY
a. Using a 10 mm hexagon wrench, remove the No. 2 idle gear shaft, idle sprocket and No. 1 idle gear shaft.





27. REMOVE NO. 1 CHAIN VIBRATION DAMPER
a. Remove the 2 bolts and vibration damper.
28. REMOVE NO. 2 CHAIN VIBRATION DAMPER
a. Remove the 2 chain vibration dampers.
29. REMOVE CRANKSHAFT TIMING GEAR OR SPROCKET
a. Remove the pulley set bolt.





b. Remove the crankshaft timing gear from the crankshaft.
c. Remove the 2 pulley set keys from the crankshaft.





30. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY (for Bank 1)
a. While raising up the No. 2 chain tensioner, insert a pin of 1.0 mm (0.039 inch) into the hole to fix it in place.





b. Hold the hexagonal portion of the camshaft with a wrench, and remove the 2 bolts and 2 camshaft timing gears.

NOTICE:
^ Be careful not to damage the cylinder head with the wrench.
^ Do not disassemble the camshaft timing gear.

c. Remove the No. 2 chain.





31. REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY
a. Remove the bolt and chain tensioner.





32. REMOVE CAMSHAFT (for Bank 1)
a. Remove the 3 gaskets.





b. Make sure that the knock pin of the camshaft is positioned as shown in the illustration.





c. Uniformly loosen and remove the 8 bearing cap bolts in the sequence shown in the illustration.





d. Uniformly loosen and remove the 12 bearing cap bolts in the sequence shown in the illustration.

NOTICE: Uniformly loosen the bolts while keeping the camshaft level.

e. Remove the 5 bearing caps.
f. Remove the No. 1 and No. 2 camshafts.





33. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY (for Bank 1)
a. Remove the camshaft housing by prying between the cylinder head and camshaft housing with a screwdriver.

NOTICE: Be careful not to damage the contact surfaces of the cylinder head and camshaft housing.

HINT: Tape the screwdriver tip before use.





34. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY (for Bank 2)
a. While pushing down the chain tensioner, insert a pin of 1.0 mm (0.039 inch) into the hole to fix it in place.





b. Hold the hexagonal portion of the camshaft with a wrench and remove the 2 bolts and 2 camshaft timing gears.

NOTICE:
^ Be careful not to damage the cylinder head with the wrench.
^ Do not disassemble the camshaft timing gear.

c. Remove the No. 2 chain.





35. REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY
a. Remove the bolt and chain tensioner.





36. REMOVE CAMSHAFT SUB-ASSEMBLY (for Bank 2)
a. Remove the 3 gaskets.





b. Make sure that the knock pin of the camshaft is positioned as shown in the illustration.





c. Uniformly loosen and remove the 8 bearing cap bolts in the sequence shown in the illustration.





d. Uniformly loosen and remove the 13 bearing cap bolts in the sequence shown in the illustration.

NOTICE: Uniformly loosen the bolts while keeping the camshaft level.

e. Remove the 5 bearing caps.
f. Remove the No. 3 and No. 4 camshafts.





37. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY (for Bank 2)
a. Remove the camshaft housing by prying between the cylinder head and camshaft housing with a screwdriver.

NOTICE: Be careful not to damage the contact surfaces of the cylinder head and camshaft housing.

HINT: Tape the screwdriver tip before use.

38. REMOVE NO. 1 VALVE ROCKER ARM SUBASSEMBLY
a. Remove the 24 valve rocker arms.

HINT: Arrange the removed parts in the correct order.

39. REMOVE VALVE LASH ADJUSTER ASSEMBLY
a. Remove the 24 valve lash adjusters from the cylinder head.

HINT: Arrange the removed parts in the correct order.





40. REMOVE CYLINDER HEAD SUB-ASSEMBLY (for Bank 1)
a. Using a 10 mm bi-hexagon wrench, uniformly loosen the 8 bolts in the sequence shown in the illustration. Remove the 8 cylinder head bolts and plate washers.

NOTICE:
^ Be careful not to drop washers into the cylinder head.
^ Head warpage or cracking could result from removing bolts in an incorrect order.

HINT: Be sure to keep the removed parts separate for each installation position.

b. Remove the cylinder head and gasket.