lock ACURA CSX 2006 Service Workshop Manual


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") Tensioner Rod Length
Service Limit: 13.5 mm (0.53 in.)
6-32
Cylinder Head
Cam Chain Inspection
13.5 mm (0.53 in.)
1. Remove the right front wheels.
2. Remove the splash shield (see step 25 on page 5-5).
3. Remove the drive belt (see page 4-31).
4. Remove the cylinder head cover (see page 6-36).
5. Set the No. 1 piston at top dead center (TDC). The
punch mark on the variable valve timing control
(VTC) actuator and the punch mark on the exhaust
camshaft sprocket should be at the top. Align the
TDC marks on the VTC actuator and the exhaust
camshaft sprocket (see step 5 on page 6-18).
6. Disconnect the crankshaft position (CKP) sensor connector and the VTC oil control solenoid valve
connector, and remove the harness clamps (see
step 6 on page 6-18).
7. Remove the VTC oil control solenoid valve (see page 11-294).
8. Remove the crankshaft pulley (see page 6-16).
9. Support the engine with a jack and a wood block under the oil pan.
10. Remove the upper torque rod (see step 10 on page 6-18).
11. Remove the ground cable, then remove the side engine mount bracket (see step 11 on page 6-19).
12. Remove the side engine mount bracket (see step 12 on page 6-19).
13. Remove the cam chain case (see step 13 on page 6-19). 14. Measure the tensioner rod length between the
tensioner body and bottom of the flat surface
section on the tensioner rod. If the length is more
than the service limit, replace the cam chain and
the oil pump chain.
15. Check the chain case oil seal for damage. If the oil seal is damaged, replace the chain case oil seal
(see page 6-31).
16. Remove all of the old liquid gasket from the chain case mating surfaces, bolt and bolt holes.
17. Clean, and dry the chain case mating surfaces.
18. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the engine
block mating surface of the chain case, and to the
inside edge of the threaded bolt holes. Install the
component within 5 minutes of applying the liquid
gasket(seestep17onpage6-24).
NOTE: If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes.
 If too much time has passed after applying the liquid gasket, remove the old liquid gasket and
residue, then reapply new liquid gasket.
19. Apply liquid gasket to the engine block upper surface contact areas on the chain case and lower
block upper surface contact areas on the chain case
(see step 18 on page 6-24).
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6-33
20. Apply liquid gasket, P/N 08717-0004, 08718-0001,08718-0003, or 08718-0009, evenly to the oil pan
mating surface of the chain case, and to the inside
edge of the thread bolt holes. Install the component
within 5 minutes of applying the liquid gasket (see
step 19 on page 6-24).
NOTE: If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes.
 If too much time has passed after applying the liquid gasket, remove the old liquid gasket and
residue, then reapply new liquid gasket.
21. Install the new O-ring on the chain case. Set the edge of the chain case to the edge of the oil pan,
then install the chain case on the engine block (see
step 20 on page 6-24). Wipe off the excess liquid
gasket on the oil pan and chain case mating surface.
NOTE: When installing the chain case, do not slide the bottom surface onto the oil pan mounting surface.
 Wait at least 30 minutes before filling the engine with oil.
 Do not run the engine for at least 3 hours after installing the chain case.
22. Install the side engine mount bracket (see step 21 on page 6-25).
23. Install the side engine mount bracket, then loosely tighten the new bolt and nut, and loosely tighten
the bolt. Install the ground cable (see step 22 on
page 6-25).
24. Remove the air cleaner assembly (see page 11-345).
25. Loosen the transmission mounting bolt and nuts (see step 25 on page 6-25).
26. Raise the vehicle on the lift.
27. Loosen the lower torque rod mounting bolt (see step 27 on page 6-26).
28. M/T model: Loosen the front mount mounting bolt (see step 28 on page 6-26). 29. Lower the vehicle on the lift.
30. Tighten the side engine mount mounting bolts and
nut (see step 30 on page 6-26).
31. Tighten the transmission mounting bolt and nuts (see step 31 on page 6-27).
32. Raise the vehicle on the lift.
33. Tighten the lower torque rod mounting bolt (see step 33 on page 6-27).
34. Lower the vehicle on the lift.
35. Install the air cleaner assembly (see page 11-345).
36. Install the upper torque rod, then tighten the new upper torque rod mounting bolts in the numbered
sequence shown (see step 36 on page 6-28).
37. Raise the vehicle on the lift.
38. M/T model: Tighten the front mount mounting bolt (see step 38 on page 6-28).
39. Install the splash shield (see step 40 on page 5-20).
40. Lower the vehicle on the lift.
41. Install the VTC oil control solenoid valve (see page 11-294).
42. Install the harness clamps, and connect the CKP sensor connector and the VTC oil control solenoid
valve connector (see step 42 on page 6-28).
43. Install the crankshaft pulley (see page 6-17).
44. Install the cylinder head cover (see page 6-37).
45. Install the drive belt (see page 4-31).
46. Do the CKP pattern clear/CKP learn procedure (see page 11-4).
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6-34 Cylinder Head
CKP Pulse Plate Replacement
1. Remove the right front wheels.
2. Remove the splash shield (see step 25 on page 5-5).
3. Remove the drive belt (see page 4-31).
4. Remove the cylinder head cover (see page 6-36).
5. Set the No. 1 piston at top dead center (TDC). The
punch mark on the variable valve timing control
(VTC) actuator and the punch mark on the exhaust
camshaft sprocket should be at the top. Align the
TDC marks on the VTC actuator and the exhaust
camshaft sprocket (see step 5 on page 6-18).
6. Disconnect the crankshaft position (CKP) sensor connector and the variable valve timing control
(VTC) oil control solenoid valve connector, and
remove the harness clamps (see step 6 on page
6-18).
7. Remove the VTC oil control solenoid valve (see page 11-294).
8. Remove the crankshaft pulley (see page 6-16).
9. Support the engine with a jack and a wood block under the oil pan.
10. Remove the upper torque rod (see step 10 on page 6-18).
11. Remove the ground cable, then remove the side engine mount bracket (see step 11 on page 6-19).
12. Remove the side engine mount bracket (see step 12 on page 6-19).
13. Remove the cam chain case (see step 13 on page 6-19). 14. Remove the CKP pulse plate.
15. Install the CKP pulse plate.
16. Check the chain case oil seal for damage. If the oil
seal is damaged, replace the chain case oil seal
(see page 6-31).
17. Remove all of the old liquid gasket from the chain case mating surfaces, bolt and bolt holes.
18. Clean, and dry the chain case mating surfaces.
19. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the engine
block mating surface of the chain case, and to the
inside edge of the threaded bolt holes. Install the
component within 5 minutes of applying the liquid
gasket(seestep17onpage6-24).
NOTE: If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes.
 If too much time has passed after applying the liquid gasket, remove the old liquid gasket and
residue, then reapply new liquid gasket.
20. Apply liquid gasket to the engine block upper surface contact areas on the chain case and lower
block upper surface contact areas on the chain case
(see step 18 on page 6-24).
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6-35
21. Apply liquid gasket, P/N 08717-0004, 08718-0001,08718-0003, or 08718-0009, evenly to the oil pan
mating surface of the chain case, and to the inside
edge of the threaded bolt holes. Install the
component within 5 minutes of applying the liquid
gasket(seestep19onpage6-24).
NOTE: If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes.
 If too much time has passed after applying the liquid gasket, remove the old liquid gasket and
residue, then reapply new liquid gasket.
22. Install the new O-ring on the chain case. Set the edge of the chain case to the edge of the oil pan,
then install the chain case on the engine block (see
step 20 on page 6-24). Wipe off the excess liquid
gasket on the oil pan and chain case mating surface.
NOTE: When installing the chain case, do not slide the bottom surface onto the oil pan mounting surface.
 Wait at least 30 minutes before filling the engine with oil.
 Do not run the engine for at least 3 hours after installing the chain case.
23. Install the side engine mount bracket (see step 21 on page 6-25).
24. Install the side engine mount bracket, then loosely tighten the new bolt and nut, and loosely tighten
the bolt. Install the ground cable (see step 22 on
page 6-25).
25. Remove the air cleaner assembly (see page 11-345).
26. Loosen the transmission mounting bolt and nuts (see step 25 on page 6-25).
27. Raise the vehicle on the lift.
28. Loosen the lower torque rod mounting bolt (see step 27 on page 6-26).
29. M/T model: Loosen the front mount mounting bolt (see step 28 on page 6-26). 30. Lower the vehicle on the lift.
31. Tighten the side engine mount mounting bolts and
nut (see step 30 on page 6-26).
32. Tighten the transmission mounting bolt and nuts (see step 31 on page 6-27).
33. Raise the vehicle on the lift.
34. Tighten the lower torque rod mounting bolt (see step 33 on page 6-27).
35. Lower the vehicle on the lift.
36. Install the air cleaner assembly (see page 11-345).
37. Install the upper torque rod, then tighten the new upper torque rod mounting bolts in the numbered
sequence shown (see step 36 on page 6-28).
38. Raise the vehicle on the lift.
39. M/T model: Tighten the front mount mounting bolt (see step 38 on page 6-28).
40. Install the splash shield (see step 40 on page 5-20).
41. Lower the vehicle on the lift.
42. Install the VTC oil control solenoid valve (see page 11-294).
43. Install the harness clamps, and connect the CKP sensor connector and the VTC oil control solenoid
valve connector (see step 42 on page 6-28).
44. Install the crankshaft pulley (see page 6-17).
45. Install the cylinder head cover (see page 6-37).
46. Install the drive belt (see page 4-31).
47. Do the CKP pattern clear/CKP learn procedure (see page 11-4).
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Removal Installation
Specified Torque
VTC Actuator Mounting Bolt:
12x1.25mm
113 N·m (11.5 kgf·m, 83 lbf·ft)
Exhaust Camshaft Sprocket Mounting Bolt:
10x1.25mm
72 N·m (7.3 kgf·m, 53 lbf·ft)
6-42Cylinder Head
VTC Actuator, Exhaust Camshaft Sprocket Replacement
1. Remove the cam chain (see page 6-18).
2. Hold the exhaust camshaft with an open-end
wrench, then loosen the variable valve timing
control (VTC) actuator mounting bolt and the
exhaust camshaft sprocket mounting bolt.
3. If the VTC actuator is reused, do these steps. –1 Remove the intake camshaft, and seal theadvance holes and retard holes in the No. 1
camshaft journal with tape (see step 6 on page
6-11).
–2 Punch a hole in the tape over one of the advance holes (see step 7 on page 6-11).
–3 Apply air to the advance hole to release the lock (see step 8 on page 6-11).
–4 Remove the tape from the No. 1 camshaft journal.
4. Remove the VTC actuator and the exhaust camshaft sprocket. 1. Install the variable valve timing control (VTC)
actuator and exhaust camshaft sprocket.
NOTE: Install the VTC actuator to unlock position.
2. Apply new engine oil to the threads of the VTC actuator mounting bolt and the exhaust camshaft
mounting bolt, then install them.
3. Hold the exhaust camshaft with an open-end wrench, then tighten the mounting bolts.
4. Hold the exhaust camshaft with an open-end wrench, and turn the VTC actuator clockwise until
you hear it click. Make sure to lock the VTC actuator
by turning it.
5. Install the cam chain (see page 6-21).
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Camshaft-to-Holder Oil Clearance
Standard (New):
No. 1 Journal: 0.030 0.069 mm
(0.001 0.003 in.)
No. 2, 3, 4, 5 Journals: 0.060 0.099 mm (0.002 0.004 in.)
Service Limit: 0.15 mm (0.006 in.) Camshaft Total Runout
Standard (New): 0.03 mm (0.001 in.) max.
Service Limit: 0.04 mm (0.002 in.)
Cam Lobe Height Standard (New):
6-51
INTAKE
SEC PRI
C/C
5. Loosen the camshaft holder bolts two turns at a time, in a crisscross pattern. Then remove the
camshaft holders from the cylinder head.
6. Lift the camshafts out of the cylinder head, wipe them clean, then inspect the lift ramps. Replace the
camshaft if any lobes are pitted, scored, or
excessively worn.
7. Clean the camshaft journal surfaces in the cylinder head, then set the camshafts back in place. Place a
plastigage strip across each journal.
8. Install the camshaft holders, then tighten the bolts to the specified torque as shown in step 2.
9. Remove the camshaft holders. Measure the widest portion of plastigage on each journal.
 If the camshaft-to-holder clearance is within the service limits, go to step 11.
 If the camshaft-to-holder clearance is beyond the service limit, and the camshaft has been replaced,
replace the cylinder head.
 If the camshaft-to-holder clearance is beyond the service limit, and the camshaft has not been
replaced, go to step 10. 10. Check the total runout with the camshaft supported
on V-blocks.
 If the total runout of the camshaft is within the service limit, replace the cylinder head.
 If the total runout is beyond the service limit, replace the camshaft, and recheck the camshaft-
to-holder oil clearance. If the oil clearance is still
beyond the service limit, replace the cylinder
head.
11. Measure the cam lobe height. INTAKE EXHAUST
PRI 34.263 mm (1.3489 in.) 34.092 mm
(1.3422 in.)
SEC 29.638 mm (1.1668 in.)
PRI: Primary SEC: Secondary C/C: Cam Chain
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Camshaft-to-Holder Oil Clearance
Standard (New):
No. 1 Journal: 0.030 0.069 mm
(0.001 0.003 in.)
No. 2, 3, 4, 5 Journals: 0.060 0.099 mm (0.002 0.004 in.)
Service Limit: 0.15 mm (0.006 in.) Camshaft Total Runout
Standard (New): 0.03 mm (0.001 in.) max.
Service Limit: 0.04 mm (0.002 in.)
Cam Lobe Height Standard (New):
6-53
INTAKE
EXHAUST
PRI MID SEC SEC
MID PRI
C/C C/C
5. Loosen the camshaft holder bolts two turns at a
time, in a crisscross pattern. Then remove the
camshaft holders from the cylinder head.
6. Lift the camshafts out of the cylinder head, wipe them clean, then inspect the lift ramps. Replace the
camshaft if any lobes are pitted, scored, or
excessively worn.
7. Clean the camshaft journal surfaces in the cylinder head, then set the camshafts back in place. Place a
plastigage strip across each journal.
8. Install the camshaft holders, then tighten the bolts to the specified torque as shown in step 2.
9. Remove the camshaft holders. Measure the widest portion of plastigage on each journal.
 If the camshaft-to-holder clearance is within the service limits, go to step 11.
 If the camshaft-to-holder clearance is beyond the service limit and the camshaft has been replaced,
replace the cylinder head.
 If the camshaft-to-holder clearance is beyond the service limit and the camshaft has not been
replaced, go to step 10. 10. Check the total runout with the camshaft supported
on V-blocks.
 If the total runout of the camshaft is within the service limit, replace the cylinder head.
 If the total runout is beyond the service limit, replace the camshaft and recheck the camshaft-
to-holder oil clearance. If the oil clearance is still
beyond the service limit, replace the cylinder
head.
11. Measure the cam lobe height. INTAKE EXHAUST
PRI 32.791 mm (1.2910 in.) 32.772 mm
(1.2902 in.)
MID 35.534 mm (1.3990 in.) 34.768 mm
(1.3688 in.)
SEC 32.678 mm (1.2865 in.) 32.661 mm
(1.2859 in.)
PRI: Primary MID: Mid SEC: Secondary
C/C: Cam Chain
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Valve Guide Installed Height
Intake: 15.2 16.2 mm (0.598 0.638 in.)
Exhaust: 15.5 16.5 mm (0.610 0.650 in.)
6-57
B
A
07742-0010100
07HAH-PJ70100
9. Apply a thin coat of new engine oil to the outside of
the new valve guide. Install the guide from the
camshaft side of the head, use the valve guide
driver to drive the guide in to the specified installed
height (A) of the guide (B). If you have all 16 guides
to do, you may have to reheat the head. 10. Coat both valve guide reamer, 5.5 mm and the
valve guide with cutting oil.
11. Rotate the reamer clockwise to the full length of the valve guide bore.
12. Continue to rotate the reamer clockwise while removing it from the bore.
13. Thoroughly wash the guide in detergent and water to remove any cutting residue.
14. Check the clearances with a valve (see page 6-55). Verify that a valve slides into the intake and
exhaust valve guides without sticking.
15. Inspect the valve seating, if necessary renew the valve seat using a valve seat cutter (see page 6-58).
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Specified Torque
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft)
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
6 x 1.0 mm Bolts: , ,
6-626-62 Cylinder Head
Rocker Arm Assembly Installation
(cont’d)
Cylinder Head Installation
C
A B
A
B
A
B
6. Make sure the punch marks on the variable valve timing control (VTC) actuator and the exhaust
camshaft sprocket are facing up, then set the
camshafts (A) in the holder. Apply new engine oil to
the camshaft journals and lobes.
7. Set the camshaft holders (C) and cam chain guide B in place.
8. Tighten the bolts in sequence to the specified torque.
NOTE: If the engine does not have bolt , skip it
and continue the torque sequence.
9. Install the cam chain (see page 6-21), then adjust the valve clearance (see page 6-14). 1. Install a new coolant separator (A) in the engine
block whenever the engine block is replaced.
2. Clean the cylinder head and the engine block surface.
3. Install the new cylinder head gasket (A) and the dowel pins (B) on the engine block. Always use a
new cylinder head gasket.
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Specified Torque
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft)
6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
6 x 1.0 mm Bolts: , ,
6-626-62 Cylinder Head
Rocker Arm Assembly Installation
(cont’d)
Cylinder Head Installation
C
A B
A
B
A
B
6. Make sure the punch marks on the variable valve timing control (VTC) actuator and the exhaust
camshaft sprocket are facing up, then set the
camshafts (A) in the holder. Apply new engine oil to
the camshaft journals and lobes.
7. Set the camshaft holders (C) and cam chain guide B in place.
8. Tighten the bolts in sequence to the specified torque.
NOTE: If the engine does not have bolt , skip it
and continue the torque sequence.
9. Install the cam chain (see page 6-21), then adjust the valve clearance (see page 6-14). 1. Install a new coolant separator (A) in the engine
block whenever the engine block is replaced.
2. Clean the cylinder head and the engine block surface.
3. Install the new cylinder head gasket (A) and the dowel pins (B) on the engine block. Always use a
new cylinder head gasket.
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