2006 ACURA CSX width

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Cylinder Head
Item Measurement QualificationStandard or New Service Limit
2-3
HeadWarpage 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
journals0.060 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. Intake5.475 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 Intake0.030 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 Intake1.25 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 Intake44.0 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 IntakeNIPPON 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. Intake5.515 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 Intake15.2 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.)
08/08/21 14:07:14 61SNR030_020_0003
ProCarManuals.com
DYNOMITE -2009-

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Item Measurement Qualification Standard or New Service Limit
2-9
Reverse idler
gear
I.D. 20.016 20.043 mm (0.7880 0.7891 in.) 20.90 mm (0.832 in.)
Gear-to-reverse gear shaft clearance 0.036 0.084 mm (0.0014 0.0033 in.) 0.16 mm (0.006 in.)
Synchro ring Ring-to-gear clearance Ring pushed against gear0.70 1.49 mm (0.028 0.059 in.) 0.4 mm (0.016 in.)
Triple cone
synchro Outer synchro ring-to-synchro cone
clearance Ring pushed
against gear0.70 1.19 mm (0.028 0.047 in.) 0.3 mm (0.012 in.)
Synchro cone-to-gear clearance Ring pushed against gear0.50 1.04 mm (0.020 0.041 in.) 0.3 mm (0.012 in.)
Outer synchro ring-to-gear clearance Ring pushed against gear0.95 1.68 mm (0.037 0.066 in.) 0.6 mm (0.024 in.)
Shift fork Finger thickness 7.4 7.6 mm (0.29 0.30 in.) Fork-to-synchro sleeve clearance 0.35 0.65 mm (0.014 0.026 in.) 1.0 mm (0.039 in.)
Reverse shift
fork Finger width 13.4 13.7 mm (0.528 0.539 in.)
Fork-to-reverse idler gear clearance 0.20 0.59 mm (0.008 0.023 in.) 1.3 mm (0.051 in.)
Shift arm I.D. 13.973 14.000 mm (0.5501 0.5512 in.) Finger width 16.9 17.0 mm (0.665 0.669 in.)
Shift arm-to-shift fork clearance 0.2 0.5 mm (0.008 0.020 in.) 0.62 mm (0.024 in.)
Select lever Finger width 14.85 14.95 mm (0.585 0.589 in.)
Change lever Shaft-to-select lever clearance 0.05 0.25 mm (0.002 0.010 in.) 0.50 mm (0.020 in.) Groove width 15.00 15.10 mm (0.591 0.594 in.)
Shaft-to-shift arm clearance 0.013 0.070 mm (0.0005 0.0028 in.) 0.1 mm (0.004 in.)
M/T differential
carrier Pinion shaft contact area I.D. 18.010 18.028 mm (0.7091 0.7098 in.)
Carrier-to-pinion shaft clearance 0.027 0.057 mm (0.0011 0.0022 in.) 0.1 mm (0.004 in.)
Driveshaft contact area I.D. 28.025 28.045 mm (1.1033 1.1041 in.)
M/T differential
pinion gear Backlash 0.05 0.15 mm (0.002 0.006 in.)
I.D. 18.042 18.066 mm (0.7103 0.7113 in.)
Pinion gear-to-pinion shaft clearance 0.059 0.095 mm (0.0023 0.0037 in.) 0.15 mm (0.006 in.)
M/T differential
80 mm shim 80 mm shim-to-bearing outer race
clearance in transmission housing 0 0.10 mm (0 0.039 in.) Adjust
08/08/21 14:07:15 61SNR030_020_0009
ProCarManuals.com
DYNOMITE -2009-

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Item Measurement Qualification Standard or New Service Limit
2-11
Reverse idler
gear
I.D. 20.016 20.043 mm (0.7880 0.7891 in.) 20.90 mm (0.823 in.)
Gear-to-reverse idler gear shaft
clearance 0.036 0.084 mm (0.0014 0.0033 in.) 0.16 mm (0.006 in.)
Synchro ring Ring-to-gear clearance Ring pushed against gear0.70 1.49 mm (0.028 0.059 in.) 0.4 mm (0.016 in.)
Double cone
synchro and
triple cone
synchro Outer synchro ring-to-synchro cone
clearance
Ring pushed
against gear0.70 1.19 mm (0.028 0.047 in.) 0.3 mm (0.012 in.)
Synchro cone-to-gear clearance Ring pushed against gear0.50 1.04 mm (0.020 0.041 in.) 0.3 mm (0.012 in.)
Outer synchro ring-to-gear clearance Ring pushed against gear0.95 1.68 mm (0.037 0.066 in.) 0.6 mm (0.024 in.)
Shift fork Finger thickness 7.4 7.6 mm (0.29 0.30 in.) Fork-to-synchro sleeve clearance 0.35 0.65 mm (0.014 0.026 in.) 1.0 mm (0.039 in.)
Reverse shift
fork Finger width 13.4 13.7 mm (0.528 0.539 in.)
Fork-to-reverse idler gear clearance 0.20 0.59 mm (0.008 0.023 in.) 1.3 mm (0.051 in.)
Shift arm I.D. 13.973 14.000 mm (0.5501 0.5512 in.) Finger width 16.9 17.0 mm (0.665 0.669 in.)
Shift arm-to-shift fork clearance 0.2 0.5 mm (0.008 0.020 in.) 0.62 mm (0.024 in.)
Select lever Finger width 14.85 14.95 mm (0.585 0.589 in.)
Change lever Shaft-to-select lever clearance 0.05 0.25 mm (0.002 0.010 in.) 0.50 mm (0.020 in.) Groove width 15.00 15.10 mm (0.591 0.594 in.)
Shaft-to-shift arm clearance 0.013 0.070 mm (0.0005 0.0028 in.) 0.1 mm (0.004 in.)
M/T differential
80 mm shim 80 mm shim-to-bearing outer race
clearance in transmission housing 0 0.10 mm (0 0.039 in.) Adjust
08/08/21 14:07:15 61SNR030_020_0011
ProCarManuals.com
DYNOMITE -2009-

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Item Measurement Qualification Standard or New Service Limit
2-13
Clutch (cont’d) 4th, 5th clutch end-plate thickness Mark 1
2.1 mm (0.083 in.)When discolored
Mark 2 2.2 mm (0.087 in.) When discolored
Mark 3 2.3 mm (0.091 in.) When discolored
Mark 4 2.4 mm (0.094 in.) When discolored
Mark 5 2.5 mm (0.098 in.) When discolored
Mark 6 2.6 mm (0.102 in.) When discolored
Mark 7 2.7 mm (0.106 in.) When discolored
Mark 8 2.8 mm (0.110 in.) When discolored
Mark 9 2.9 mm (0.114 in.) When discolored
Mainshaft Diameter of needle bearing contact area At stator shaft 22.984 23.000 mm (0.905 0.906 in.)
At 5th gear 51.975 51.991 mm (2.046 2.047 in.)
At 4th gear collar 33.975 33.991 mm
(1.3376 1.3382 in.)
I.D. of gears 5th gear57.000 57.019 mm
(2.2441 2.2448 in.)
4th gear 40.000 40.016 mm
(1.5748 1.5754 in.)
End play of gears 5th gear (’06-07
models) 0.03 0.11 mm (0.001 0.004 in.)
5th gear (’08-09
models) 0.04 0.10 mm (0.002 0.004 in.)
4th gear 0.10 0.22 mm (0.004 0.009 in.)
41 x 68 mm thrust washer thickness
(’06-07 models) No. 1
6.35 mm (0.250 in.)
No. 2 6.40 mm (0.252 in.)
No. 3 6.45 mm (0.254 in.)
No. 4 6.50 mm (0.256 in.)
No. 5 6.55 mm (0.258 in.)
No. 6 6.60 mm (0.260 in.)
41 x 68 mm thrust washer thickness
(’08-09 models) No. 1
4.450 mm (0.1752 in.)
No. 2 4.475 mm (0.1762 in.)
No. 3 4.500 mm (0.1772 in.)
No. 4 4.525 mm (0.1781 in.)
No. 5 4.550 mm (0.1791 in.)
No. 6 4.575 mm (0.1801 in.)
No. 7 4.600 mm (0.1811 in.)
No. 8 4.625 mm (0.1821 in.)
No. 9 4.650 mm (0.1831 in.)
No. 10 4.675 mm (0.1841 in.)
No. 11 4.700 mm (0.1850 in.)
No. 12 4.725 mm (0.1860 in.)
No. 13 4.750 mm (0.1870 in.)
No. 14 4.775 mm (0.1880 in.)
No. 15 4.800 mm (0.1890 in.)
4th gear collar length 66.3 66.4 mm (2.610 2.614 in.)
Length of 4th gear collar flange from
end 19.15 19.30 mm (0.754 0.760 in.)
Sealing ring thickness 1.91 1.97 mm (0.0752 0.0776 in.) 1.86 mm (0.0732 in.)
Width of sealing ring groove 2.025 2.060 mm (0.0797 0.0811 in.) 2.080 mm (0.0819 in.)
Clutch feed pipe O.D. 7.97 7.98 mm (0.3138 0.3142 in.) 7.95 mm (0.313 in.)
Clutch feed pipe bushing I.D. 8.000 8.015 mm (0.3150 0.3156 in.) 8.030 mm (0.3161 in.)
(cont’d)
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
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When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
08/08/21 14:07:16 61SNR030_020_0013
ProCarManuals.com
DYNOMITE -2009-

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Automatic Transmission and A/T Differential (cont’d)
Item Measurement QualificationStandard or New Service Limit
2-14Standards and Service Limits
Countershaft Diameter of needle bearing contact
area At torque
converter
housing36.005 36.015 mm
(1.4175 1.4179 in.)
At 4th gear collar 34.982 34.998 mm (1.3772 1.3779 in.)
At reverse gear
collar 39.979 40.000 mm
(1.5740 1.5748 in.)
I.D. of gears 4th gear 41.000 41.016 mm (1.6142 1.6148 in.)
Reverse gear 46.000 46.016 mm (1.8110 1.8117 in.)
End play of gears 5th gear 0 0.48 mm (0 0.019 in.) 4th gear 0.04 0.12 mm (0.002 0.005 in.)
Reverse gear 0.10 0.25 mm (0.004 0.010 in.)
Distance collar length 54.22 54.30 mm (2.135 2.138 in.)
Reverse selector hub width 25.45 25.65 mm (1.002 1.010 in.)
Reverse selector hub O.D. 55.87 55.90 mm (2.200 2.201 in.)
Secondary shaft Diameter of needle bearing contact area At 1st gear 39.986 39.999 mm (1.5742 1.5748 in.)
At 2nd gear 39.986 39.999 mm (1.5742 1.5748 in.)
At 3rd gear collar 36.975 36.991 mm (1.4557 1.4563 in.)
I.D. of gears 1st gear 47.000 47.016 mm (1.8504 1.8510 in.) 2nd gear 46.000 46.016 mm (1.8110 1.8117 in.)
3rd gear 43.000 43.016 mm (1.6929 1.6935 in.)
End play of gears 1st gear 0.04 0.12 mm (0.002 0.005 in.) 2nd gear 0.04 0.12 mm (0.002 0.005 in.)
3rd gear 0.10 0.22 mm (0.004 0.009 in.)
37 x 58 mm thrust washer thickness No. 1 3.900 mm (0.154 in.) No. 2 3.925 mm (0.155 in.)
No. 3 3.950 mm (0.156 in.)
No. 4 3.975 mm (0.156 in.)
No. 5 4.000 mm (0.157 in.)
No. 6 4.025 mm (0.158 in.)
No. 7 4.050 mm (0.159 in.)
No. 8 4.075 mm (0.160 in.)
No. 9 4.100 mm (0.161 in.)
No. 10 4.125 mm (0.162 in.)
No. 11 4.150 mm (0.163 in.)
No. 12 4.175 mm (0.164 in.)
No. 13 4.200 mm (0.165 in.)
No. 14 4.225 mm (0.166 in.)
No. 15 4.250 mm (0.167 in.)
No. 16 4.275 mm (0.168 in.)
No. 17 4.300 mm (0.169 in.)
No. 18 4.325 mm (0.170 in.)
No. 19 4.350 mm (0.171 in.)
No. 20 4.375 mm (0.172 in.)
40 x 51.5 mm thrust washer thickness No. 1 4.80 mm (0.189 in.) No. 2 4.85 mm (0.191 in.)
No. 3 4.90 mm (0.193 in.)
No. 4 4.95 mm (0.195 in.)
No. 5 5.00 mm (0.197 in.)
No. 6 5.05 mm (0.199 in.)When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
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When worn or damaged
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When worn or damaged
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08/08/21 14:07:16 61SNR030_020_0014
ProCarManuals.com
DYNOMITE -2009-

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Item
Measurement QualificationStandard or New Service Limit
2-15
Secondary shaft
(cont’d)3rd gear collar length 43.9 44.0 mm (1.728 1.732 in.)
Length of 3rd gear collar flange from
end 5.25 5.40 mm (0.207 0.213 in.)
Sealing ring thickness 1.91 1.97 mm (0.0752 0.0776 in.) 1.86 mm (0.0732 in.)
Width of sealing ring groove 2.025 2.060 mm (0.0797 0.0811 in.) 2.080 mm (0.0819 in.)
Clutch feed pipe O.D. 3rd clutch feed pipe11.47 11.48 mm (0.4516 0.4520 in.) 11.45 mm (0.4508 in.)
1st clutch feed
pipe 6.97 6.98 mm (0.2744 0.2748 in.) 6.95 mm (0.2736 in.)
Clutch feed pipe bushing I.D. 3rd clutch feed pipe11.500 11.518 mm (0.4528 0.4535 in.) 11.530 mm (0.4539 in.)
1st clutch feed
pipe 7.018 7.030 mm (0.2763 0.2768 in.) 7.045 mm (0.2774 in.)
ATF guide of sealing ring contact I.D. 29.000 29.021 mm (1.1417 1.1426 in.) 29.05 mm (1.144 in.)
Idler gear shaft Diameter of needle bearing contact area End cover side 32.003 32.013 mm (1.2600 1.2604 in.)
Thickness of cotters 1.39 1.42 mm (0.0547 0.0559 in.)
Reverse idler
gear Reverse idler gear shaft diameter at
needle bearing contact area 14.99 15.00 mm (0.5902 0.5906 in.)
I.D. 20.007 20.020 mm (0.7877 0.7882 in.)
I.D. of reverse idler gear shaft contact
area on transmission housing 14.800 14.818 mm (0.5827 0.5834 in.)
I.D. of reverse idler gear shaft holder 14.800 14.824 mm (0.5827 0.5836 in.)
ATF pump ATF pump thrust clearance 0.03 0.06 mm (0.001 0.002 in.) 0.07 mm (0.003 in.) Clearance between ATF pump gear
and body Drive gear 0.210 0.265 mm (0.0083 0.0104 in.)
Driven gear 0.070 0.125 mm (0.0028 0.0049 in.)
ATF pump driven gear I.D. 14.016 14.034 mm (0.5518 0.5525 in.)
ATF pump driven gear shaft O.D. 13.980 13.990 mm (0.5504 0.5508 in.)
Stator shaft Needle bearing contact I.D. Torque converter side27.000 27.021 mm (1.063 1.064 in.)
ATF pump side 29.000 29.021 mm (1.1417 1.1426 in.)
Sealing ring contact area I.D. 29.000 29.021 mm (1.1417 1.1426 in.) 29.05 mm (1.144 in.)
Reverse shift
fork Fork finger thickness 5.90 6.00 mm (0.232 0.236 in.) 5.40 mm (0.213 in.)
Park gear and
pawl
Servo body Shift fork shaft bore I.D. 14.000 14.010 mm (0.5512 0.5516 in.) Shift fork shaft valve bore I.D. 37.000 37.039 mm (1.4567 1.4582 in.) 37.045 mm (1.4585 in.)
Regulator valve
body Sealing ring contact I.D. 29.000 29.021 mm (1.1417 1.1426 in.) 29.05 mm (1.144 in.)
(cont’d)
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
When worn or damaged
08/08/21 14:07:16 61SNR030_020_0015
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-


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Valve Seat Width
Standard (New): 1.25 1.55 mm (0.049 0.061 in.)
Service Limit: 2.00 mm (0.079 in.)
6-58 Cylinder Head
Valve Seat Reconditioning
45 °
INTAKE: 35 °
EXHAUST: 30 °
67.5 ° A
B
1. Inspect the valve stem-to-guide clearance
(see page 6-55). If the valve guides are worn,
replace them (see page 6-56) before cutting the
valve seats.
2. Renew the valve seats in the cylinder head using a valve seat cutter.
3. Carefully cut a 45 ° seat, removing only enough material to ensure a smooth and concentric seat.
4. Bevel the upper and lower edges at the angles
shown in the illustration.
Check the width of the seat and adjust accordingly. 5. Make one more very light pass with the 45 ° cutter
to remove any possible burrs caused by the other
cutters.
6. After resurfacing the seat, inspect for even valve seating. Apply Prussian Blue compound (A) to the
valve face. Insert the valve in its original location in
the head, then lift it and snap it closed against the
seat several times.
7. The actual valve seating surface (B), as shown by the blue compound, should be centered on the seat.
 If it is too high (closer to the valve stem), you must make a second cut with the 67.5 ° cutter to
move it down, then one more cut with the 45 °
cutter to restore seat width.
 If it is too low (close to the valve edge), you must make a second cut with the 35 ° cutter (intake
side) or the 30 ° cutter (exhaust side) to move it
up, then make one more cut with the 45 ° cutter
to restore seat width.
NOTE: The final cut should always be made with
the 45 ° cutter.
08/08/21 14:28:22 61SNR030_060_0058
ProCarManuals.com
DYNOMITE -2009-