GMC chervolet camaro 1999 Service Manual page 799

6-16 Engine Mechanical - 3.8 L Engine
Engine Mechanical Specifications (cont'd)
Specification
Application Metric English
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Rod Bearing Clearance 0.0127 - 0.0660 mm 0.0005 - 0.0026 in
Crankshaft End. Play 0.076 - 0.276 mm 0.003 - O.Q11 in
Connecting Rod
Rod Side Clearance 0.102 - 0.508 mm 0.004 - 0.0200 in
Connecting Rod Large End Bore ID
60.295 - 60.312 mm
2.37378- 2.3745 in
Camshaft
Journal Diameter 47.655 - 46.858 mm 1.8462 - 1.8448 in
Bearing Inside Diameter 1 and 4 46.970 - 46.934 mm 1.8428 - 1.8492 in
Bearing Inside Diameter 2 and 3 46.977 - 46.942 mm 1.8481 - 1.8495 in
Bearing-to-Journal Clearance 0.041 - 0.119 mm 0.0016 - 0.0047 in
Intake Maximum Lobe Lift
6.55mm 0.258 in
Exhaust Maximum Lobe Lift
6.48 mm
0.255 in·
Balance Shaft
End Play 0.0 - 0.171 mm
6.o -
0.0067 in
Rear Journal Diameter 38.085 - 38.105 mm 1.4994 - 1.5002 in
Radial Play-Front, Bearing Clearance 0.0 - 0.026 mm 0.0 - 0.0010 in
Rear Bearing To Journal Clearance 0.0127 - 0.109 mm · 0.0005 - 0.0043 in
Drive Gear Lash 0.050- 0.125 mm 0.002 - 0.0049 in
Bearing Bore Diameter-Front 51.973- 51.999 mm 2.0462 - 2.0472 in
Bearing Bore Diameter-Rear, In Block 47.584 - 47.612 mm 1.8735 - 1.87 45 in
Bearing Inside Diameter-Rear 38.118- 38.194 mm 1 .5007 - 1 .5037 in
Valve System
Lifter
Hydraulic
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Rocker Arm Ratio
1.6:1
Face Angle 45°
Seat Angle 45°
Minimum Margin 0.635 mm 0.025 in
Seat Runout-Maximum 0.050mm 0.002 in
Seat Width-Intake 1.53 - 2.03 mm 0.060 - 0.080 in
Seat Width-Exhaust 2.29 - 2.79 mm 0.090 - 0.110 in
Stem Height-All 49.15 - 50.17 mm
1.935 - 1.975 in
Stem Clearance-All 0.038 - 0.089 mm 0.0015 - 0.0032 in
Valve Spring
Free Length 49.78mm 1.960 in
Load-Closed
334N@
75 lb @ 1.72 in
43.69mm
Load-Open 1014 N @ 32.4 mm 228 lb @ 1.277 in
Installed Height
42.93 - 44.45 mm
1.690 - 1.720 in
Approximate Number of Active Coils 4.48
Approximate Number of Total Coils
6.60
Flywheel
Runout-Maximum 0.38mm 0.015.in
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