Acura CSX. Instruction — page 5

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SNR9A00000000000000NDAT01

Engine Electrical

Engine Assembly

Item

Measurement

Qualification

Standard or New

Service Limit

Item

Measurement

Qualification

Standard or New

2-2

Standards and Service Limits

Ignition coil

Rated voltage

12 V

Firing order

1

3

4

2

Spark plug

Type (K20Z2)

DENSO: SKJ20DR-M11

Type (K20Z3)

DENSO: SK22PR-M11S

Gap

1.0

1.1 mm (0.039

0.043 in.)

Ignition timing

At idle

Check the

mark

M/T (in neutral),

A/T (in N or P)

8

2 ° BTDC

Drive belt

Tension

Auto-tensioner

Alternator

Output

At 13.5 V and

normal engine

temperature

105 A

Coil (rotor) resistance

20 °C (68 °F)

3.2

4.0

Slip ring O.D.

14.4 mm (0.57 in.)

14.0 mm (0.55 in.)

Brush length

10.5 mm (0.41 in.)

1.5 mm (0.06 in.)

Brush spring tension

3.2 N (0.33 kgf, 0.7 lbf)

Starter

Output

1.6 kW

Commutator mica depth

0.40

0.50 mm (0.016

0.020 in.)

0.15 mm (0.006 in.)

Commutator runout

0.02 mm (0.0008 in.) max.

0.05 mm (0.002 in.)

Commutator O.D.

28.0

28.1 mm (1.102

1.106 in.)

27.5 mm (1.083 in.)

Brush length

11.1

11.5 mm (0.44

0.45 in.)

4.3 mm (0.17 in.)

Compression

Pressure

Check the engine with the starter

cranking

Minimum

930 kPa (9.5 kgf/cm , 135 psi)

Maximum

variation

200 kPa (2.0 kgf/cm , 28 psi)

2

2

red

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Cylinder Head

Item

Measurement

Qualification

Standard or New

Service Limit

2-3

Head

Warpage

0.05 mm (0.002 in.)

Height

103.95

104.05 mm (4.093

4.096 in.)

Camshaft

End play

0.05

0.20 mm (0.002

0.008 in.)

0.4 mm (0.02 in.)

Camshaft-to-holder oil clearance

No. 1 journal

0.030

0.069 mm (0.001

0.003 in.)

0.15 mm (0.006 in.)

No. 2, 3, 4, 5

journals

0.060

0.099 mm (0.002

0.004 in.)

0.15 mm (0.006 in.)

Total runout

0.03 mm (0.001 in.) max.

0.04 mm (0.002 in.)

Cam lobe height (K20Z2)

Intake (primary)

34.263 mm (1.3489 in.)

Intake

(secondary)

29.638 mm (1.1668 in.)

Exhaust

34.092 mm (1.3422 in.)

Cam lobe height (K20Z3)

Intake (primary)

32.791 mm (1.2910 in.)

Intake (mid)

35.534 mm (1.3990 in.)

Intake

(secondary)

32.678 mm (1.2865 in.)

Exhaust

(primary)

32.772 mm (1.2902 in.)

Exhaust (mid)

34.768 mm (1.3688 in.)

Exhaust

(secondary)

32.661 mm (1.2859 in.)

Valve

Clearance (cold)

(K20Z2)

Intake

0.21

0.25 mm (0.008

0.010 in.)

Exhaust

0.28

0.32 mm (0.011

0.013 in.)

Clearance (cold)

(K20Z3)

Intake

0.21

0.25 mm (0.008

0.010 in.)

Exhaust

0.25

0.29 mm (0.010

0.011 in.)

Stem O.D.

Intake

5.475

5.485 mm (0.2156

0.2159 in.)

5.445 mm (0.214 in.)

Exhaust

5.450

5.460 mm (0.2146

0.2150 in.)

5.420 mm (0.213 in.)

Stem-to-guide clearance

Intake

0.030

0.055 mm (0.0012

0.0022 in.)

0.08 mm (0.003 in.)

Exhaust

0.055

0.080 mm (0.0022

0.0031 in.)

0.11 mm (0.004 in.)

Valve seat

Width

Intake

1.25

1.55 mm (0.049

0.061 in.)

2.00 mm (0.079 in.)

Exhaust

1.25

1.55 mm (0.049

0.061 in.)

2.00 mm (0.079 in.)

Stem installed height

Intake

44.0

44.5 mm (1.73

1.75 in.)

44.7 mm (1.76 in.)

Exhaust

44.1

44.6 mm (1.74

1.76 in.)

44.8 mm (1.76 in.)

Valve spring

Free length

Intake

NIPPON HATSUJO:

47.57 mm (1.8728 in.)

CHUO HATSUJO:

47.58 mm (1.8732 in.)

Exhaust

NIPPON HATSUJO:

49.64 mm (1.954 in.)

CHUO HATSUJO:

49.63 mm (1.954 in.)

Valve guide

I.D.

Intake

5.515

5.530 mm (0.2171

0.2177 in.)

5.55 mm (0.219 in.)

Exhaust

5.515

5.530 mm (0.2171

0.2177 in.)

5.55 mm (0.219 in.)

Installed height

Intake

15.2

16.2 mm (0.598

0.638 in.)

Exhaust

15.5

16.5 mm (0.610

0.650 in.)

Rocker arm

Arm-to-shaft clearance (K20Z2)

Intake

0.025

0.052 mm (0.0010

0.0020 in.)

0.08 mm (0.003 in.)

Exhaust

0.018

0.056 mm (0.0007

0.0022 in.)

0.08 mm (0.003 in.)

Arm-to-shaft clearance (K20Z3)

Intake

0.025

0.052 mm (0.0010

0.0020 in.)

0.08 mm (0.003 in.)

Exhaust

0.025

0.052 mm (0.0010

0.0020 in.)

0.08 mm (0.003 in.)

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Engine Block

Item

Measurement

Qualification

Standard or New

Service Limit

2-4

Standards and Service Limits

Block

Warpage of deck

0.07 mm (0.003 in.) max.

0.10 mm (0.004 in.)

Bore diameter

A or l

86.010

86.020 mm (3.3862

3.3866 in.) 86.070 mm (3.3886 in.)

B or II

86.000

86.010 mm (3.3858

3.3862 in.) 86.070 mm (3.3886 in.)

Bore taper

0.05 mm (0.002 in.)

Reboring limit

0.25 mm (0.01 in.)

Piston

Skirt O.D. at 11 mm (0.4 in.) from

bottom of skirt

No letter or A

85.980

85.990 mm (3.3850

3.3854 in.) 85.930 mm (3.3831 in.)

Letter B

85.970

85.980 mm (3.3846

3.3850 in.) 85.920 mm (3.3827 in.)

Clearance in cylinder

0.020

0.040 mm (0.0008

0.0016 in.)

0.05 mm (0.002 in.)

Piston ring

Ring-to-groove clearance (K20Z2)

Top

0.035

0.060 mm (0.0014

0.0024 in.)

0.13 mm (0.005 in.)

Second

0.030

0.055 mm (0.0012

0.0022 in.)

0.13 mm (0.005 in.)

Ring-to-groove clearance (K20Z3)

Top

0.045

0.070 mm (0.0018

0.0028 in.)

0.13 mm (0.005 in.)

Second

0.040

0.065 mm (0.0016

0.0026 in.)

0.13 mm (0.005 in.)

Ring end gap (K20Z2)

Top

0.20

0.35 mm (0.008

0.014 in.)

0.60 mm (0.024 in.)

Second

0.40

0.55 mm (0.016

0.022 in.)

0.70 mm (0.028 in.)

Oil

0.20

0.70 mm (0.008

0.028 in.)

0.80 mm (0.031 in.)

Ring end gap (K20Z3)

Top

0.20

0.35 mm (0.008

0.014 in.)

0.60 mm (0.024 in.)

Second

0.50

0.65 mm (0.020

0.026 in.)

0.75 mm (0.030 in.)

Oil

0.20

0.70 mm (0.008

0.028 in.)

0.80 mm (0.031 in.)

Piston pin

O.D.

21.961

21.965 mm (0.8646

0.8648 in.) 21.953 mm (0.8643 in.)

Pin-to-piston clearance

0.005 to

0.002 mm

(

0.00020 to

0.00008 in.)

0.005 mm (0.0002 in.)

Connecting rod

Pin-to-rod clearance

0.005

0.015 mm (0.0002

0.0006 in.)

0.02 mm (0.0008 in.)

Small-end bore diameter

21.970

21.976 mm (0.8650

0.8652 in.)

Large-end bore diameter (K20Z2)

48.0 mm (1.89 in.)

Large-end bore diameter (K20Z3)

51.0 mm (2.01 in.)

End play

0.15

0.30 mm (0.006

0.012 in.)

0.40 mm (0.016 in.)

Crankshaft

Main journal diameter

No. 1, 2, 4, 5

journals

54.984

55.008 mm (2.1648

2.1657 in.)

No. 3 journal

54.976

55.000 mm (2.1644

2.1654 in.)

Rod journal diameter (K20Z2)

44.976

45.000 mm (1.7707

1.7717 in.)

Rod journal diameter (K20Z3)

44.976

45.000 mm (1.7707

1.7717 in.)

Rod/main journal taper

0.005 mm (0.0002 in.) max.

0.010 mm (0.0004 in.)

Rod/main journal out-of-round

0.005 mm (0.0002 in.) max.

0.010 mm (0.0004 in.)

End play

0.10

0.35 mm (0.004

0.014 in.)

0.45 mm (0.018 in.)

Runout

0.03 mm (0.0012 in.) max.

0.04 mm (0.0016 in.)

Crankshaft

bearing

Main bearing-to-journal oil clearance

No. 1, 2, 4, 5

journals

0.017

0.041 mm (0.0007

0.0016 in.)

0.050 mm (0.0020 in.)

No. 3 journal

0.025

0.049 mm (0.0010

0.0019 in.)

0.055 mm (0.0022 in.)

Connecting rod bearing-to-journal oil

clearance (K20Z2)

0.020

0.050 mm (0.0008

0.0020 in.)

0.060 mm (0.0024 in.)

Connecting rod bearing-to-journal oil

clearance (K20Z3)

0.032

0.066 mm (0.0013

0.0026 in.)

0.077 mm (0.0030 in.)

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Engine Lubrication

Item

Measurement

Qualification

Standard or New

Service Limit

2-5

Engine oil

Capacity (K20Z2)

Engine overhaul

5.3 L (5.6 US qt)

Oil change

including filter

4.2 L (4.4 US qt)

Oil change

without filter

4.0 L (4.2 US qt)

Capacity (K20Z3)

Engine overhaul

5.5 L (5.8 US qt)

Oil change

including filter

4.4 L (4.6 US qt)

Oil change

without filter

4.2 L (4.4 US qt)

Oil pump

Inner-to-outer rotor clearance

0.06

0.16 mm (0.002

0.006 in.)

0.20 mm (0.008 in.)

Pump housing-to-outer rotor clearance

0.15

0.21 mm (0.006

0.008 in.)

0.23 mm (0.009 in.)

Pump housing-to-rotor axial clearance

0.035

0.070 mm (0.0014

0.0028 in.)

0.12 mm (0.005 in.)

Balancer shafts, journal diameter

No. 1 journal,

front shaft

19.938

19.950 mm (0.7850

0.7854 in.) 19.92 mm (0.784 in.)

No. 1 journal,

rear shaft

23.938

23.950 mm (0.9424

0.9429 in.) 23.92 mm (0.942 in.)

No. 2 journal,

front and rear

shaft

32.949

32.961 mm (1.2972

1.2977 in.) 32.93 mm (1.296 in.)

Balancer shafts, journal taper

0.005 mm (0.0002 in.) max.

Balancer shafts, end play

Front

0.063

0.108 mm (0.0025

0.0043 in.)

0.14 mm (0.0055 in.)

Rear

0.063

0.108 mm (0.0025

0.0043 in.)

0.14 mm (0.0055 in.)

Balancer shafts, shaft-to-bearing

clearance

No. 1 journal,

front shaft

0.050

0.082 mm (0.0020

0.0032 in.)

0.10 mm (0.004 in.)

No. 1 journal,

rear shaft

0.050

0.082 mm (0.0020

0.0032 in.)

0.10 mm (0.004 in.)

No. 2 journal,

front and rear

shaft

0.060

0.120 mm (0.0024

0.0047 in.)

0.15 mm (0.006 in.)

Balancer shaft bearings, I.D.

No. 1 journal,

front shaft

20.000

20.020 mm (0.7874

0.7882 in.) 20.03 mm (0.789 in.)

No. 1 journal,

rear shaft

24.000

24.020 mm (0.9449

0.9457 in.) 24.03 mm (0.946 in.)

No. 2 journal,

front and rear

shaft

33.021

33.069 mm (1.3000

1.3019 in.) 33.09 mm (1.303 in.)

Relief valve, oil pressure with oil

temperature at 80 °C (176 °F)

At idle

70 kPa (0.7 kgf/cm , 10 psi) min.

At 3,000 rpm

300 kPa (3.1 kgf/cm , 44 psi) min.

2

2

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