engine ACURA CSX 2006 Service User Guide

(#')
1-14General Information
Parts Marking
To deter vehicle theft, certain major components are marked with the vehicle identification number (VIN). Original
parts have self-adhesive labels. Replacement body parts have generic self-adhesive labels. These labels should not be
removed. The original engine or transmission VIN plates are not transferable to the replacement engine or
transmission.
NOTE: Be careful not to damage the parts marking labels during body repair. Mask the labels before repairing the part.
08/08/21 14:06:05 61SNR030_010_0014
ProCarManuals.com
DYNOMITE -2009-

(#'
/)
Specifications
Standards and Service Limits
Design Specifications
...................................................................................................................
..............................................................
................................................................ ......................................................
........................................................... .....................................................
........................................................................\
....
.......................................
.................................................
........................................................................\
..................................................................
........................................................................\
... .......................................................... ...................................................................................................................
..............................................................
................................................................ ......................................................
........................................................... .....................................................
........................................................................\
....
.......................................
.................................................
........................................................................\
..................................................................
........................................................................\
... ..........................................................
Engine Electrical
. 2-2
Engine Assembly . 2-2
Cylinder Head . 2-3
Engine Block . 2-4
Engine Lubrication . 2-5
Cooling System . 2-6
Fuel and Emissions . 2-7
Clutch . 2-7
Manual Transmission and M/T Differential (5-speed) . 2-8
Manual Transmission and M/T Differential (6-speed) . 2-10
Automatic Transmission and A/T Differential . 2-12
Steering . 2-18
Suspension . 2-18
Brakes . 2-19
Air Conditioning . 2-19
..................................................................
........................................................................\
..
........................................................................\
...
........................................................................\
...
........................................................................\
.... ..............................................................................................
........................................................................\
..................................................................
........................................................................\
...... .........................................................
........................................................................\
... ................................................................................................................... .....................................................
..................................................................
........................................................................\
..
........................................................................\
...
........................................................................\
...
........................................................................\
.... ..............................................................................................
........................................................................\
..................................................................
........................................................................\
...... .........................................................
........................................................................\
... ................................................................................................................... .....................................................
Dimensions
. 2-20
Weight . 2-20
Engine . 2-20
Starter . 2-20
Clutch . 2-20
Manual Transmission . 2-21
Automatic Transmission . 2-21
Steering . 2-21
Suspension . 2-21
Tires . 2-21
Wheel Alignment . 2-22
Brakes . 2-22
Air Conditioning . 2-22
Electrical Ratings . 2-23
Body Specifications . 2-24
08/08/21 14:07:13 61SNR030_020_0001
ProCarManuals.com
DYNOMITE -2009-

µµµµ µ •••
¶
µ
µµ
µµ
µµ
(#'#)
Engine Electrical
Engine Assembly
Item Measurement QualificationStandard or New Service Limit
Item Measurement Qualification Standard or New
2-2Standards and Service Limits
Ignition coil Rated voltage
12 V
Firingorder 1342
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)82°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
08/08/21 14:07:14 61SNR030_020_0002
ProCarManuals.com
DYNOMITE -2009-

µµ
µµ
•••
••• µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ µµ
µ´ µ´ µµµ µ ••• •••
•••
µµ µ µ •••
µ µ •••
µ µ •••
µ µ •••
µµ µµ
µµ
µµ
µµ
Engine Block
Item Measurement QualificationStandard or New Service Limit
2-4Standards and Service Limits
Block
Warpage of deck 0.07 mm (0.003 in.) max.0.10 mm (0.004 in.)
Bore diameter A or l86.010 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) Top0.20 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) Top0.20 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 Mainbearing-to-journaloilclearance No.1,2,4,5
journals0.017 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.)
08/08/21 14:07:14 61SNR030_020_0004
ProCarManuals.com
DYNOMITE -2009-

µµ
µµµµµµ
µµ
µµ
•••
µµ
µµ
µµ
µµ
µµ
µµ
µµ
µµ
Engine Lubrication
Item Measurement QualificationStandard or New Service Limit
2-5
Engine oil Capacity (K20Z2) Engine overhaul 5.3 L (5.6 US qt)
Oil change
including filter 4.2L(4.4USqt)
Oil change
without filter 4.0L(4.2USqt)
Capacity (K20Z3) Engine overhaul 5.5 L (5.8 US qt)
Oil change
including filter 4.4L(4.6USqt)
Oil change
without filter 4.2L(4.4USqt)
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 shaft19.938 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 Front0.063 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 shaft0.050 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
08/08/21 14:07:14 61SNR030_020_0005
ProCarManuals.com
DYNOMITE -2009-

µµ µ
µµ
Cooling System
ItemMeasurement Qualification Standard or New
2-6Standards and Service Limits
Radiator
Coolant capacities (including engine,
heater, hoses, and reservoir)
Use Honda Long Life Antifreeze/
Coolant Type 2
(K20Z2) M/T: engine
overhaul
6.6 L (1.74 US gal)
M/T: coolant
change 4.3 L (1.14 US gal)
A/T: engine
overhaul 6.5 L (1.72 US gal)
A/T: coolant
change 4.2 L (1.11 US gal)
Coolant capacities (includes engine,
heater, hoses, and reservoir)
Use Honda Long Life Antifreeze/
Coolant Type 2
(K20Z3) Engine overhaul 6.8 L (1.80 US gal)
Coolant change 4.5 L (1.19 US gal)
Coolant reservoir Coolant capacity 0.4 L (0.11 US gal)
Radiator cap Opening pressure 93 123 kPa (0.95 1.25 kgf/cm , 14 18 psi)
Thermostat Opening temperature Begins to open 76 80 °C (169 176 °F)
Fully open 90 °C (194 °F)
Valve lift at fully open 8.0 mm (0.31 in.)
2
08/08/21 14:07:14 61SNR030_020_0006
ProCarManuals.com
DYNOMITE -2009-

µµ µ
¶
¶
¶
¶
¶
¶•••
•••
µ µ •••
µµ
µµ
Fuel and Emissions
Clutch
Item Measurement Qualification Standard or New
Item Measurement QualificationStandard or New Service Limit
2-7
Fuel pressure
regulatorPressure with fuel pressure gauge
connected 330 380 kPa (3.4 3.9 kgf/cm , 48 55 psi)
Fuel tank Capacity 50 L (13.2 US gal)
Engine idle
(K20Z2) Idle speed without load M/T (in neutral) 700 50 rpm
A/T (in N or P) 800 50 rpm
Idle speed with high electrical load
(A/C switch ON, temperature set to
max cool, blower fan on High, rear
window defogger ON, and headlights
on high beam) M/T (in neutral) 780 50 rpm
A/T (in N or P) 800 50 rpm
Engine idle
(K20Z3) Idle speed without load M/T (in neutral) 750 50 rpm
Idle speed with high electrical load
(A/C switch ON, temperature set to
max cool, blower fan on High, rear
window defogger ON, and headlights
on high beam) M/T (in neutral) 750 50 rpm
Clutch pedal Height from floor Except Type S 159.3 mm (6.27 in.) Type S 161.3 mm (6.35 in.)
Stroke 130 140 mm (5.12 5.51 in.)
Flywheel Runout on clutch mating surface 0.05 mm (0.002 in.) max. 0.15 mm (0.006 in.)
Clutch disc Rivet head depth 1.65 2.25 mm (0.065 0.089 in.) 0.7 mm (0.03 in.) Thickness 8.3 8.9 mm (0.33 0.35 in.) 6.0 mm (0.24 in.)
Pressure plate Warpage 0.03 mm (0.001 in.) max. 0.15 mm (0.006 in.) Evenness of the height of the
diaphragm spring fingers 0.6 mm (0.02 in.) max. 0.8 mm (0.03 in.)2
08/08/21 14:07:14 61SNR030_020_0007
ProCarManuals.com
DYNOMITE -2009-

µµ
¶¶
µ
µ
¶
¶¶
¶
µµ
µµ
µµ
µµ
´ µ
´ µ
´ µ ´
µ
(#'#)
Steering
Suspension
Item Measurement Qualification Standard or New
Item Measurement QualificationStandard or New Service Limit
2-18Standards and Service Limits
Steering wheel Rotational play measured at outside
edge with engine running 010mm(00.39in.)
Initial turning load measured at
outside edge with engine running 34 N (3.5 kgf, 7.7 lbf)
Gearbox Angle of rack guide screw loosened from locked position 73°
Wheel alignment Camber Front 0 ° 00 ’ 30 ’ Rear (without
‘‘C’’ marks on the
rear upper arm)1°30’
Rear (with ‘‘C’’
marks on the
rear upper arm) 0°45’
Caster Front 7 ° 00 ’ 1 °
Total toe-in Front 0 2 mm (0 0.08 in.) Rear 2 mm (0.08 in.)
Front wheel turning angle Inward 38 ° 46 ’ 2 ° Outward
(reference)31 ° 14 ’
Wheel Runout Axial 0 0.7 mm (0 0.03 in.) 2.0 mm (0.08 in.) Radial 0 0.7 mm (0 0.03 in.) 1.5 mm (0.06 in.)
Wheel bearing End play Front 0 0.05 mm (0 0.002 in.) Rear 0 0.05 mm (0 0.002 in.)
1°05’0°45’
1°05’ 0°45’
2 1 0.08
0.04
08/08/21 14:07:17 61SNR030_020_0018
ProCarManuals.com
DYNOMITE -2009-

(#'#)
ItemMeasurement Qualification Specification
2-20Design Specifications
DIMENSIONS Overall length
4.544 mm (178.9 in.)
Overall width 1,752 mm (69.0 in.)
Overall height 1,435 mm (56.5 in.)
Wheelbase 2,700 mm (106.3 in.)
Track Front1,499 mm (59.0 in.)
Rear 1,528 mm (60.2 in.)
Ground clearance 145 mm (5.7 in.)
Seating capacity Five (5)
WEIGHT Gross Vehicle Weight Rating
(GVWR) See the certification label attached to the driver’s doorjamb
ENGINE Type Water cooled, 4-stroke DOHC i-VTEC engine
Cylinder arrangement Inline 4-cylinder, transverse
Boreandstroke 86x86mm(3.39x3.39in.)
Displacement 1,998 cm (122 cu in.)
Compression ratio K20Z29.6
K20Z3 11.0
Valve train Chain drive, DOHC i-VTEC 4 valves per cylinder
Lubrication system Forced, wet sump, with trochoid pump
Fuel required K20Z2Regular UNLEADED gasoline 87 Pump Octane Number or
higher
K20Z3 Premium UNLEADED gasoline 91 Pump Octane Number or
higher
STARTER Type Gear Reduction
Nominal output 1.6 kW
Nominal voltage 12 V
Hour rating 30 seconds
Direction of rotation Clockwise as viewed from drive end
CLUTCH Type Single plate dry, diaphragm spring
Clutch friction material surface area 174 cm (27 sq in.)
3
2
08/08/21 14:07:17 61SNR030_020_0020
ProCarManuals.com
DYNOMITE -2009-


(#')
Application Lubricant or Fluid
3-2Lubricants and Fluids
API CERTIFICATION SEAL
For details of the lubrication points and the type of lubricants to be applied, refer to the illustrated index and the various work procedures (such
as Assembly/Reassembly, Replacement, Overhaul, Installation, etc.) contained in each section.


A Engine Acura Motor Oil:
K20Z2: P/N CA66808 (5W-20)
K20Z3: P/N CA66807 (5W-30)
Look for the API certification seal on the oil container. Make sure it says ‘‘For
Gasoline Engines.’’ SAE viscosity: See chart.
B Manual transmission Acura Manual Transmission Fluid (MTF): P/N 08798-9033C Always use Acura MTF. Using motor oil can cause stiffer shifting because it
does not contain the proper additives.
Automatic transmission Acura Automatic Transmission Fluid (ATF-Z1): P/N CA66704 Always use Acura ATF-Z1. Using a non-Acura ATF can affect shift quality.
C
D Brake system (including VSA lines)
Clutch system (manual transmission) Honda DOT 3 Brake Fluid: P/N 08798-9008
Always use Honda DOT 3 Brake Fluid. Using a non-Honda brake fluid can
cause corrosion and decrease the life of the system.
E F
G H I
J
K Brake booster clevis pin
Clutch master cylinder clevis pin (manual
transmission)
Release fork (manual transmission)
Battery terminals
Fuel fill door
Trunk hinges
Hood hinges and hood latch Multipurpose Grease
L
M Shift cable ends (manual transmission)
Caliper piston seal and boot, caliper pins and boots Honda Silicone Grease: P/N 08C30-B0234M
N Air conditioning compressor Compressor Oil: SP-10 (P/N 38897-P13-A01AH) for refrigerant HFC-134a (R-134a)
O Cooling system Honda Long Life Antifreeze/Coolant Type 2: P/N CA66688
08/08/21 14:08:29 61SNR030_030_0002
ProCarManuals.com
DYNOMITE -2009-