Camshaft (FA20)
Components Removal / installation
ENGINE MECHANICAL
CAMSHAFT (FA20)
EXPLODED VIEW
REMOVAL
1. Engine stand installation
(Refer to 
)
)2. Engine hanger removal (Refer to )
)3. Generator cover removal (Refer to )
)4. Belt generator cover removal (Refer to )
)5. Fan & generator V-belt removal (Refer to )
)6. Generator ASSY removal (Refer to )
)7. Oil level gauge guide removal (Refer to )
)8. Idler pulley SUB-ASSY NO. 1 and NO. 2 removal (Refer to )
)9. V-ribbed belt tensioner ASSY removal (Refer to )
)10. Intake manifold protector (bank 1 side) removal (Refer to )
)11. Removal of intake manifold protector (bank 2 side) (Refer to )
)12. Fuel delivery pipe SUB-ASSY removal (Refer to )
)13. Disconnection of ventilation hose (Refer to )
)14. Intake manifold removal (Refer to )
)15. Fuel delivery pipe (bank 2 side) removal (Refer to )
)16. Removal of fuel delivery pipe (bank 1 side) (Refer to )
)17. Fuel pump ASSY removal (Refer to )
)18. Valve lifter removal (Refer to )
)19. Pump drive case ASSY removal (Refer to )
)20. Vacuum pump ASSY removal (transmission A/T) (Refer to )
)21. Cylinder head plate RR removal (transmission M/T) (Refer to )
)22. Water by-pass pipe NO. 1 removal (transmission A/T) (Refer to )
)23. Water by-pass pipe NO. 1 removal (transmission M/T) (Refer to )
)24. Crankshaft pulley removal (Refer to )
)25. Timing chain cover oil seal removal (Refer to )
)26. Engine wiring disconnection (Refer to )
)27. Timing chain cover SUB-ASSY removal (Refer to )
)28. Chain SUB-ASSY removal (bank 1 side) (Refer to )
)29. Removal of chain SUB-ASSY (bank 2 side) (Refer to )
)
30. Piston and valve damage prevention procedure
(1) Use the SST to turn the crankshaft approximately 200° clockwise and align the alignment marks of crankshaft timing sprocket to the position as shown in the figure.
SST
18252AA000
Captions in illustration
| *1 |
Alignment marks |
CAUTION:
Never turn the crankshaft counterclockwise other than when fine-adjusting the alignment mark position. Otherwise the valve and piston may contact.
(2) Using the SST, turn the camshaft timing intake gear ASSY LH approximately 180° clockwise and align the alignment mark of camshaft timing intake gear ASSY LH to the position (zero-lift position) as shown in the figure.
Captions in illustration
| *1 |
Alignment marks |
SST
18355AA000
18334AA030
CAUTION:
After this work, when the intake valve and exhaust valve lift at the same time, the valve heads contact each other and valve stems may bend. Do not turn the intake camshaft LH and exhaust camshaft LH to the outside of range of zero-lift (in range where it can be turned lightly by hand).
(3) Remove the SST from the crankshaft.
31. Camshaft timing intake gear ASSY RH removal
(1) Use the SST to secure the camshaft timing intake gear ASSY RH and remove the three bolts.
SST
18355AA000
18334AA030
18270KA010
(2) Remove the camshaft timing intake gear ASSY RH.
32. Camshaft timing exhaust gear ASSY RH removal
(1) Use the SST to secure the camshaft timing exhaust gear ASSY RH and remove the three bolts.
SST
18355AA000
18334AA030
18270KA010
(2) Remove the camshaft timing exhaust gear ASSY RH.
33. Camshaft timing intake gear ASSY LH removal
(1) Use the SST to secure the camshaft timing intake gear ASSY LH and remove the three bolts.
SST
18355AA000
18334AA030
18270KA010
(2) Remove the camshaft timing intake gear ASSY LH.
34. Camshaft timing exhaust gear ASSY LH removal
(1) Use the SST to secure the camshaft timing exhaust gear ASSY LH and remove the three bolts.
SST
18355AA000
18334AA030
18270KA010
(2) Remove the camshaft timing exhaust gear ASSY LH.
35. Ignition coil ASSY removal (bank 2 side) (Refer to )
)36. Spark plug removal (bank 2 side) (Refer to )
)37. Ignition coil ASSY removal (bank 1 side) (Refer to )
)38. Spark plug removal (bank 1 side) (Refer to )
)39. Cylinder head cover SUB-ASSY removal (Refer to )
)40. Camshaft housing SUB-ASSY RH removal (Refer to )
)41. Cylinder head cover SUB-ASSY LH removal (Refer to )
)42. Camshaft housing SUB-ASSY LH removal (Refer to )
)
43. Camshaft cap removal (bank 1 side)
(1) Loosen the 12 bolts a little at a time equally in the order as shown in the figure and remove them to remove the front camshaft cap RH, intake center camshaft cap RH, intake rear camshaft cap RH, exhaust center camshaft cap RH and exhaust rear camshaft cap RH.
NOTE:
The removed parts must be organized by installation location.
44. Camshaft removal (bank 1 side)
(1) Remove the intake camshaft RH and exhaust camshaft RH from the camshaft housing SUB-ASSY RH.
45. Camshaft cap removal (bank 2 side)
(1) Loosen the 13 bolts a little at a time equally in the order as shown in the figure and remove them to remove the front camshaft cap LH, intake center camshaft cap LH, intake rear camshaft cap LH, exhaust center camshaft cap LH and exhaust rear camshaft cap LH.
NOTE:
The removed parts must be organized by installation location.
46. Camshaft removal (bank 2 side)
(1) Remove the intake camshaft LH and exhaust camshaft LH from the camshaft housing SUB-ASSY LH.
INSTALLATION
1. Camshaft installation (bank 2 side)
(1) Apply engine oil to the journal of camshaft housing SUB-ASSY LH.
(2) Install the intake camshaft LH and exhaust camshaft LH to the camshaft housing SUB-ASSY LH.
2. Camshaft cap installation (bank 2 side)
(1) Apply THREE BOND 1217G or equivalent to the mating surfaces of front camshaft cap LH, intake rear camshaft cap LH and exhaust rear camshaft cap LH as shown in the figure.
Captions in illustration
| *1 |
Front camshaft cap LH |
*2 |
Intake rear camshaft cap LH |
| *3 |
Exhaust rear camshaft cap LH |
- |
- |
| *a |
1.0 mm {0.0394 in} or less |
*b |
Diameter: 3.0 to 4.0 mm {0.1181 to 0.1575 in} |
| *c |
Diameter 2.5 to 3.5 mm {0.0984 to 0.1378 in} |
*d |
Diameter 2.5 to 4.0 mm {0.0984 to 0.1575 in} |
| *e |
Diameter: 1.5 to 2.5 mm {0.0591 to 0.0984 in} |
*f |
Groove end |
CAUTION:
·Clean and degrease the installation surface.
·Do not apply liquid gasket excessively, doing so cause engine seizure.
·Do not apply liquid gasket to the intake center camshaft cap LH and exhaust center camshaft cap LH.
·Install within 5 min. after applying liquid gasket.
·Do not apply liquid gasket excessively, doing so cause engine seizure.
·Do not apply liquid gasket to the intake center camshaft cap LH and exhaust center camshaft cap LH.
·Install within 5 min. after applying liquid gasket.
(2) Apply engine oil to the journals of each camshaft cap and set it to the camshaft housing SUB-ASSY LH.
(3) Tighten the 13 bolts in the order as shown in the figure and install the front camshaft cap LH, intake center camshaft cap LH, intake rear camshaft cap LH, exhaust center camshaft cap LH and exhaust rear camshaft cap LH.
Standard value:
Standard value:
Tightening torque=18N·m
{
184kgf·cm}
{13.3ft·lbf}
3. Camshaft installation (bank 1 side)
(1) Apply engine oil to the journal of camshaft housing SUB-ASSY RH.
(2) Install the intake camshaft RH and exhaust camshaft RH to the camshaft housing SUB-ASSY RH.
4. Camshaft cap installation (bank 1 side)
(1) Apply THREE BOND 1217G or equivalent to the mating surfaces of front camshaft cap RH, intake rear camshaft cap RH and exhaust rear camshaft cap RH as shown in the figure.
Captions in illustration
| *1 |
Front camshaft cap RH |
*2 |
Intake rear camshaft cap RH |
| *3 |
Exhaust rear camshaft cap RH |
- |
- |
| a |
Diameter 2.5 to 4.0 mm {0.0984 to 0.1575 in} |
b |
1.0 mm {0.0394 in} or less |
| c |
Diameter: 3.0 to 4.0 mm {0.1181 to 0.1575 in} |
d |
Diameter: 1.5 to 2.5 mm {0.0591 to 0.0984 in} |
| e |
Groove end |
- |
- |
CAUTION:
·Clean and degrease the installation surface.
·Do not apply liquid gasket excessively, doing so cause engine seizure.
·Do not apply liquid gasket to the intake center camshaft cap RH and exhaust center camshaft cap RH.
·Install within 5 min. after applying liquid gasket.
·Do not apply liquid gasket excessively, doing so cause engine seizure.
·Do not apply liquid gasket to the intake center camshaft cap RH and exhaust center camshaft cap RH.
·Install within 5 min. after applying liquid gasket.
(2) Apply engine oil to the journals of each camshaft cap and set it to the camshaft housing SUB-ASSY RH.
(3) Tighten the 12 bolts in the order as shown in the figure and install the front camshaft cap RH, intake center camshaft cap RH, intake rear camshaft cap RH, exhaust center camshaft cap RH and exhaust rear camshaft cap RH.
Standard value:
Standard value:
Tightening torque=18N·m
{
184kgf·cm}
{13.3ft·lbf}
5. Camshaft housing SUB-ASSY LH installation (Refer to )
)6. Cylinder head cover SUB-ASSY LH installation (Refer to )
)7. Camshaft housing SUB-ASSY RH installation (Refer to )
)8. Cylinder head cover SUB-ASSY installation (Refer to )
)9. Spark plug installation (bank 1 side) (Refer to )
)10. Ignition coil ASSY installation (bank 1 side) (Refer to )
)11. Spark plug installation (bank 2 side) (Refer to )
)12. Installation of ignition coil ASSY (bank 2 side) (Refer to )
)13. Camshaft timing exhaust gear ASSY LH installation
CAUTION:
Before installation, check that there is no foreign matter on the camshaft timing exhaust gear ASSY LH and exhaust camshaft LH.
(1) Install the camshaft timing exhaust gear ASSY LH by aligning the knock hole of camshaft timing exhaust gear ASSY LH and the knock pin of exhaust camshaft LH.
Captions in illustration
| *1 |
Knock hole |
| *2 |
Knock pin |
(2) Use the SST to secure the camshaft timing exhaust gear ASSY LH and tighten the three bolts.
Standard value:
SST
18355AA000
18334AA030
18270KA010
Standard value:
Tightening torque=18N·m
{
184kgf·cm}
{13.3ft·lbf}
14. Camshaft timing intake gear ASSY LH installation
CAUTION:
Before installation, check that there is no foreign matter on the camshaft timing intake gear ASSY LH and intake camshaft LH.
(1) Install the camshaft timing intake gear ASSY LH by aligning the knock hole of camshaft timing intake gear ASSY LH and the knock pin of intake camshaft LH.
Captions in illustration
| *1 |
Knock hole |
| *2 |
Knock pin |
(2) Use the SST to secure the camshaft timing intake gear ASSY LH and tighten the three bolts.
Standard value:
SST
18355AA000
18334AA030
18270KA010
Standard value:
Tightening torque=18N·m
{
184kgf·cm}
{13.3ft·lbf}
15. Camshaft timing exhaust gear ASSY RH installation
CAUTION:
Before installation, check that there is no foreign matter on the camshaft timing exhaust gear ASSY RH and exhaust camshaft RH.
(1) Install the camshaft timing exhaust gear ASSY RH by aligning the knock hole of camshaft timing exhaust gear ASSY RH and the knock pin of exhaust camshaft RH.
Captions in illustration
| *1 |
Knock hole |
| *2 |
Knock pin |
(2) Use the SST to secure the camshaft timing exhaust gear ASSY RH and tighten the three bolts.
Standard value:
SST
18355AA000
18334AA030
18270KA010
Standard value:
Tightening torque=18N·m
{
184kgf·cm}
{13.3ft·lbf}
16. Camshaft timing intake gear ASSY RH installation
CAUTION:
Before installation, check that there is no foreign matter on the camshaft timing intake gear ASSY RH and intake camshaft RH.
(1) Install the camshaft timing intake gear ASSY RH by aligning the knock hole of camshaft timing intake gear ASSY RH and the knock pin of intake camshaft RH.
Captions in illustration
| *1 |
Knock hole |
| *2 |
Knock pin |
(2) Use the SST to secure the camshaft timing intake gear ASSY RH and tighten the three bolts.
Standard value:
SST
18355AA000
18334AA030
18270KA010
Standard value:
Tightening torque=18N·m
{
184kgf·cm}
{13.3ft·lbf}
17. Crankshaft timing sprocket installation
(1) Install the crankshaft timing sprocket.
18. Chain SUB-ASSY installation (bank 2 side) (Refer to )
)19. Chain SUB-ASSY installation (bank 1 side) (Refer to )
)20. Timing chain cover SUB-ASSY installation (Refer to )
)21. Engine wiring connection (Refer to )
)22. Timing chain cover oil seal installation (Refer to )
)23. Crankshaft pulley installation (Refer to )
)24. Water by-pass pipe NO. 1 installation (transmission M/T) (Refer to )
)25. Water by-pass pipe NO. 1 installation (transmission A/T) (Refer to )
)26. Cylinder head plate RR installation (transmission M/T) (Refer to )
)27. Vacuum pump ASSY installation (transmission A/T) (Refer to )
)28. Pump drive case ASSY installation (Refer to )
)29. Valve lifter installation (Refer to )
)30. Fuel pump ASSY installation (Refer to )
)31. Fuel delivery pipe (bank 1 side) installation (Refer to )
)32. Installation of fuel delivery pipe (bank 2 side) (Refer to )
)33. Intake manifold installation (Refer to )
)34. Ventilation hose connection (Refer to )
)35. Fuel delivery pipe SUB-ASSY installation (Refer to )
)36. Intake manifold protector (bank 2 side) installation (Refer to )
)37. Installation of intake manifold protector (bank 1 side) (Refer to )
)38. V-ribbed belt tensioner ASSY installation (Refer to )
)39. Oil level gauge guide installation (Refer to )
)40. Idler pulley SUB-ASSY NO. 1 and NO. 2 installation (Refer to )
)41. Generator ASSY installation (Refer to )
)42. Fan & generator V-belt installation (Refer to )
)43. Belt generator cover installation (Refer to )
)44. Generator cover installation (Refer to )
)45. Engine hanger installation (Refer to )
)46. Engine stand removal
(Refer to )
)