Mazda engine MZR–CD. Manual - part 17

B–48

ENGINE 

Crankshaft Pulley Assembly Note

1. Hold the crankshaft using the SST.

2. Tighten the bolts in the order shown.

End Of Sie

AME2524E065

AME2524E013

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TECHNICAL DATA

TECHNICAL DATA ............................................. TD-2

ENGINE ............................................................ TD-2

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TECHNICAL DATA 

ENGINE

AME931001001101

TECHNICAL DATA

Item

Specification

Cylinder head

Valve clearance

IN

0.12—0.18 {0.0048—0.0070} (0.15 

±

 0.03 {0.0059 

±

 0.0012})

[Engine cold]

(mm {in}) EX

0.32—0.38 {0.0126—0.0149} (0.35 

±

 0.03 {0.0138 

±

 0.0012})

Cylinder head gasket contact surfaces

Maximum

X direction:0.01 {0.0004}

distortion

(mm {in})

Y direction:0.04 {0.0016}

Manifold contact surfaces direction

(mm {in})

Maximum

0.06 {0.0024}

Maximum

0.20 {0.008}

grinding

Valve and valve guide

Margin thickness

(mm {in})

IN

0.8 {0.0315}

EX

1.0 {0.0394}

Valve length

(mm{in})

IN

Standard

115.01—115.51 {4.528—4.547}

Minimum

114.785 {4.519}

EX

Standard

114.35—114.85 {4.502—4.521}

Minimum

114.125 {4.493}

Valve stem diameter

(mm {in})

IN

Standard

5.970—5.985 {0.2351—0.2356}

Minimum

5.920 {0.2331}

EX

Standard

5.965—5.980 {0.2349—0.2354}

Minimum

5.915 {0.2329}

Valve guide inner diameter

(mm {in})

6.030—6.050 {0.2374—0.2381}

Valve guide protrusion height

(mm {in})

IN

18.7—19.2 {0.737—0.755}

EX

17.6—18.1 {0.693—0.712}

Valve seat contact width

(mm {in})

IN

1.3—1.9 {0.052—0.074}

EX

1.3—1.9 {0.052—0.074}

Valve seat angle

IN

45

°

EX

45

°

Valve recession

(mm{in})

IN

Standard

0.42—0.90 {0.017—0.035}

Maximum

1.25 {0.049}

EX

Standard

0.46—0.94 {0.019—0.037}

Maximum

1.29 {0.051}

Valve spring

Standard height

(mm {in})

IN

38.0 {1.50}

EX

38.0 {1.50}

Pressing force/height

(N {kgf, lbf}/mm{in})

IN

172.1—194.9 {17.55—19.87,38.61—43.79}/38.0 {1.50}

EX

172.1—194.9 {17.55—19.87,38.61—43.79}/38.0 {1.50}

Out-of-square

(mm{in}) Maximum

1.55 {0.061}

Camshaft

Runout

(mm {in}) Maximum

0.03 {0.0012}

Cam lobe height

(mm {in})

IN

Standard

40.140 {1.5803}

Minimum

39.940 {1.5724}

EX

Standard

39.809 {1.5673}

Minimum

39.609 {1.5594}

Journal diameter

(mm {in})

Standard

31.950—31.975 {1.2579—1.2588}

Minimum

31.920 {1.2567}

Journal oil clearance

(mm {in})

Standard

0.025—0.030 {0.0010—0.0011}

Maximum

0.075 {0.0030}

End play

(mm {in})

Standard

0.03—0.16 {0.0012—0.0062}

Maximum

0.20 {0.0079}

TECHNICAL DATA 

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TD

Cylinder block

Cylinder head gasket contact surfaces

Maximum

X direction: 0.01 {0.0004}

distortion

(mm {in})

Y direction: 0.03 {0.0012}

Cylinder bore diameter

(mm {in})

Standard

86.000—86.022 {3.3859—3.3866}

0.25 {0.01} oversize

86.250—86.272 {3.3957—3.3965}

0.50 {0.02} oversize

86.500—86.522 {3.4055—3.4063}

Wear limit

(mm {in})

0.15 {0.006}

Oil jet valve,nozzle

Nozzle opening pressure

(kPa{kgf/cm 

2

,psi})

138—196 {1.4—2.0,20—28}

Piston

Piston diameter

Standard

85.973—86.015 {3.3848—3.3864}

[Measured at 90

°

 to pin bore axis

0.25 {0.01} oversize

86.223—86.265 {3.3946—3.3962}

 and 10mm {0.39 in} above 
the bottom of piston] (mm {in})

0.50 {0.02} oversize

86.473—86.515 {3.4045—3.4061}

Piston-to-cylinder clearance

(mm {in})

Standard

0—0.034 {0—0.0013}

Maximum

0.10 {0.0039}

Piston pin bore diameter

(mm {in})

29.997—30.007 {1.1810—1.1813}

Piston ring

Piston ring-to-ring groove clearance 

Top

0.05—0.09 {0.0020—0.0035}

Second

0.04—0.08 {0.0016—0.0031}

(mm {in}) Oil

0.03—0.07 {0.0012—0.0027}

Maximum

0.15 {0.0059}

End gap

Top

0.20—0.30 {0.008—0.011}

Second

0.20—0.30 {0.008—0.011}

[Measured in cylinder]

(mm {in}) Oil

0.20—0.30 {0.008—0.011}

Maximum

1.0 {0.039}

Piston pin

Diameter

(mm {in})

29.994—30.000 {1.1809—1.1811}

Connecting rod-to-piston pin clearance

(mm {in})

0.014—0.036 {0.00056—0.00141}

Piston-to-piston pin clearance

(mm {in})

-0.003—0.013 {-0.00011—0.00051}

Crankshaft

Runout

(mm {in})

0.03 {0.001}

Main journal diameter

(mm {in}

Standard

59.937—59.955 {2.3598—2.3604}

0.25{0.01} undersize

59.687—59.705 {2.3499—2.3505}

0.50{0.02} undersize

59.437—59.455 {2.3401—2.3407}

0.75{0.03} undersize

59.187—59.205 {2.3302—2.3309}

Out-of-round

(mm {in})

0.03 {0.001}

Crank pin diameter

mm {in})

Standard

50.940—50.955 {2.0056—2.0060}

0.25{0.01} undersize

50.690—50.705 {1.9957—1.9962}

0.50{0.02} undersize

50.440—50.455 {1.9859—1.9864}

0.75{0.03} undersize

50.190—50.205 {1.9760—1.9765}

Out-of-round

(mm {in})

0.03 {0.001}

Main journal oil clearance

(mm {in})

Standard

0.025—0.044 {0.0010—0.0017}

Maximum

0.08 {0.003}

Main journal brearing thickness

Standard

2.007—2.022 {0.0791—0.0796}

0.25{0.01} undersize

2.129—2.139 {0.0839—0.0842}

(mm {in} 0.50{0.02} undersize

2.254—2.264 {0.0888—0.0891}

0.75{0.03} undersize

2.379—2.389 {0.0937—0.0940}

Crankshaft end play

(mm {in}

Standard

0.040—0.282 {0.00158—0.01110}

Maximum

0.30 {0.012}

Trust bearing thickness 

Standard

2.00—2.05 {0.0788—0.0807}

(mm {in} 0.35{0.01}undersize

2.175—2.225 {0.0857—0.0876}

Item

Specification