bolt pattern ACURA CSX 2006 Service Repair Manual



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M/T model
A/T model
6-28 Cylinder Head
Cam Chain Installation (cont’d)
12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft)
12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft)
12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft)
12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft) 12x1.25mm
64 N·m
(6.5 kgf·m, 47 lbf·ft)
C
B
A
36. Install the upper torque rod, then tighten the new
upper torque rod mounting bolts in the numbered
sequence shown. 37. Raise the vehicle on the lift.
38. M/T model: Tighten the front mount mounting bolt.
39. Install the splash shield (see step 40 on page 5-20).
40. Lower the vehicle on the lift.
41. Install the variable valve timing control (VTC) oil
control solenoid valve (see page 11-294).
42. Install the harness clamps (A), and connect the CKP sensor connector (B) and the VTC oil control
solenoid valve connector (C).
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).
Replace.
Replace.
Replace.
Replace.
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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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6-35
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).
08/08/21 14:27:24 61SNR030_060_0035
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Cylinder Head Height
Standard (New): 103.95 104.05 mm
(4.093 4.096 in.)
K20Z2 engine
6-436-43
Cylinder Head Inspection for
Warpage Rocker Arm Assembly Removal
PRECISION STRAIGHT EDGE A
A
1. Remove the cylinder head (see page 6-38).
2. Inspect the camshaft:  K20Z2 engine (see page 6-50)
 K20Z3 engine (see page 6-52)
3. Check the cylinder head for warpage. Measure along the edges, and three ways across the center.
 If warpage is less than 0.05 mm (0.002 in.) cylinder head resurfacing is not required.
 If warpage is between 0.05 mm (0.002 in.) and 0.2 mm (0.008 in.), resurface the cylinder head.
 Maximum resurface limit is 0.2 mm (0.008 in.) based on a height of 104 mm (4.09 in.). 1. Remove the cam chain (see page 6-18).
2. Loosen the rocker arm adjusting screws (A).
3. Remove the camshaft holder bolts. To prevent
damaging the camshafts, loosen the bolts, in
sequence, two turns at a time in a crisscross
pattern.
(cont’d)
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K20Z3 engine
6-446-44 Cylinder Head
Rocker Arm Assembly Removal (cont’d)
A
C B
A B
A A
A
4. Remove cam chain guide B, the camshaft holders (A), and the camshafts (C).
5. Insert the bolts (A) into the rocker shaft holder, then remove the rocker arm assembly (B). 1. Remove the cam chain (see page 6-18).
2. Loosen the rocker arm adjusting screws (A).
3. Remove the camshaft holder bolts. To prevent
damaging the camshafts, loosen the bolts, in
sequence, two turns at a time in a crisscross
pattern.
NOTE: Bolt is not on all engines.
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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
08/08/21 14:28:19 61SNR030_060_0053
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6-666-66 Cylinder Head
Cylinder Head Installation (cont’d) Sealing Bolt Installation
A
22x1.5mm
74 N·m
(7.5 kgf·m, 54 lbf·ft)
B
28. Refill the radiator with engine coolant, and bleed
the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
29. Do the engine control module (ECM)/powertrain control module (PCM) idle lean procedure
(see page 11-310).
30. Do the crankshaft position (CKP) pattern clear/CKP pattern lean procedure (see page 11-4).
31. Inspect the idle speed (see page 11-309).
32. Inspect the ignition timing (see page 4-20). NOTE: When installing the sealing bolt (A), always use
a new washer (B).
Replace.
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Installation - K20Z2 engine
9-4Intake Manifold and Exhaust System
Intake Manifold Removal and Installation (cont’d)
A
B B
A
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft) B
A 8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
7. Raise the vehicle on the lift to full height.
8. Remove the splash shield (see step 25 on page 5-5).
9. Remove the connector (A) from the intake manifoldbracket (B), then remove the intake manifold
bracket.
10. Lower the vehicle on the lift.
11. Remove the intake manifold. 1. Install the intake manifold (A) with a new gasket (B),
and tighten the bolts and the nuts in a crisscross
pattern in three steps, beginning with the inner bolt.
2. Raise the vehicle on the lift.
3. Install the intake manifold bracket (A), then install the connector (B) to the intake manifold bracket.
4. Install the splash shield (see step 40 on page 5-20).
5. Lower the vehicle on the lift.
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Installation - K20Z3 engine
9-9
B A
C
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft) B
A 8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft) B
A
A
1. Connect the water bypass hose (A) to the intakemanifold (B), then install the intake manifold with a
new gasket (C), and tighten the bolts and the nuts in
a crisscross pattern in three steps, beginning with
the inner bolt.
2. Raise the vehicle on the lift.
3. Install the intake manifold bracket (A), then install the connector (B) to the intake manifold bracket.
4. Install the splash shield (see step 40 on page 5-20).
5. Lower the vehicle on the lift. 6. Connect the fuel feed hose (A) (see page 11-331),
then install the quick-connect fitting cover (B).
7. Connect the water bypass hoses (A).
(cont’d)
08/08/21 14:37:35 61SNR030_090_0009
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