GM Service Manual Online
For 1990-2009 cars only

Application

Specifications

Metric

English

General Data

  • Engine Type

L-4

  • Regular Production Option (RPO) Code LN2 VIN Code 4/L43 VIN Code 5
  • Displacement

2.2 L

134 CID

  • Bore

89 mm

3.5 in

  • Stroke

88 mm

3.46 in

  • Compression Ratio

9:1

  • Firing Order

1-3-4-2

  • Oil Pressure @ 65°C (150°F)

348 kPa

56 psi @ 3000 RPM

Camshaft

  • Journal Clearance

0.038-0.088 mm

0.0015-0.0035 in

  • Journal Diameter

47.453-47.478 mm

1.868-1.869 in

  • Lobe Lift - Inlet and Exhaust

6.687 mm

0.2633 in

Crankshaft

  • Crankshaft End Play

0.0511-0.1780 mm

0.002-0.007 in

  • Main Bearing Clearance

0.015-0.047 mm

0.0006-0.0019 in

  • Main Journal Diameter

63.360-63.384 mm

2.4945-2.4954 in

  • Main Journal Out Of Round

0.005 mm

0.00019 in

  • Main Journal Taper

0.005 mm

0.00019 in

  • Rod Bearing Journal Clearance

0.025-0.079 mm

0.00098-0.0031 in

  • Rod Bearing Journal Diameter

50.758-50.784 mm

1.9983-1.9994 in

  • Rod Bearing Journal Out Of Round

0.005 mm

0.00019 in

  • Rod Bearing Journal Taper

0.005 mm

0.00019 in

  • Rod Side Clearance

0.10-0.38 mm

0.0039-0.0149 in

Cylinder Bore

  • Diameter

88.991-89.009 mm

3.5036-3.5043 in

  • Lubrication System
  • Oil Capacity Without Filter Change

3.473 L

3.5 qts

  • Oil Pressure (3000 RPM @ 65°C (150°F)

348 kPa

56 psi min.

  • Out Of Round Maximum

0.013 mm

0.0005 in

  • Taper - Thrust Side Maximum

0.013 mm

0.0005 in

  • When Changing the Oil Filter, Up to an Additional 0.473 Liter or One Half Quart of Oil May Be Needed. Filter Type or Equivalent

PF-47

Cylinder Head

  • Cylinder Head Deck Face - Overall Maximum Flatness

0.08 mm

0.003 in

  • Cylinder Head Deck Face - Maximum Flatness within any 150 mm (5.92 in) length

0.05 mm

0.002 in

  • Cylinder Head Deck Face - Maximum Flatness within 25 mm (0.984 in) length

0.025 mm

0.001 in

Oil Pump

  • End Clearance

0.05-0.18 mm

0.002-0.007 in

  • Gear Diameter - Drive Gear

38.05-38.10 mm

1.498-1.50 in

  • Gear Diameter - Idler

38.05-38.10 mm

1.498-1.5 in

  • Gear Lash

0.094-0.195 mm

0.004-0.008 in

  • Gear Length - Drive Gear

30.45-30.48 mm

1.199-1.20 in

  • Gear Length - Idler

30.45-30.48 mm

1.199-1.20 in

  • Gear Pocket Depth

30.36-30.44 mm

1.195-1.198 in

  • Gear Pocket Diameter

38.18-38.25 mm

1.503-1.506 in

  • Gear Side Clearance - Drive Gear

0.038-0.102 mm

0.001-0.004 in

  • Gear Side Clearance - Idler

0.038-0.102 mm

0.001-0.004 in

  • Oil Pump Drive to Driven Gear Backlash

0.23-0.51 mm

0.0091-0.0201 in

  • Outer Gerotor Thickness

17.087-17.099 mm

0.6727-0.6731 in

  • Valve to Bore Clearance

0.038-0.089 mm

0.0015-0.0035 in

Piston

  • Clearance - 42.7 mm from top of piston
  • Factory Specification

0.015-0.047 mm

0.00059-0.00185 in

  • Service Specification

0.015-0.087 mm

0.0006-0.0034 in

Piston Pin

  • Clearance In Piston

0.0079-0.018 mm

0.00031-0.00071 in

  • Diameter

20.3200-20.3251 mm

0.8000-0.8002 in

  • Interference Fit In Rod

0.021-0.0511 mm

0.0008-0.002 in

Piston Ring Compression

  • Second Groove Side Clearance

0.02-0.08 mm

0.0008-0.0031 in

  • Second Ring Gap

0.30-0.45 mm

0.0012-0.0177 in

  • Top Groove Side Clearance

0.05-0.09 mm

0.0020-0.0035 in

  • Top Ring Gap

0.25-0.50 mm

0.010-0.020 in

Piston Ring Oil

  • Gap

0.25-0.76 mm

0.010-0.030 in

  • Groove Clearance

0.013-0.220 mm

0.0005-0.0087 in

Valve System

  • Rocker Arm Ratio

1.6

  • Valve Face Angle

45°

  • Valve Face Runout

0.038 mm

0.0014 in

  • Valve Guide Inside Diameter

7.000-7.020 mm

0.275-0.276 in

  • Valve Head Diameter - Exhaust

37 mm

1.45 in

  • Valve Head Diameter - Inlet

44 mm

1.73 in

  • Valve Margin - Exhaust

2.21-1.79 mm

0.087-0.070 in

  • Valve Margin - Inlet

1.56-1.16 mm

0.061-0.046 in

  • Valve Overall Length - Exhaust

127 mm

5.00 in

  • Valve Overall Length - Inlet

134.23 mm

5.28 in

  • Valve Seat Width - Exhaust

3.51 mm

0.138 in

  • Valve Seat Width - Inlet

2.80 mm

0.110 in

  • Valve Springs Free Length

48.7 mm

1.91 in

  • Valve Springs Load - Closed

361-325 N @ 40.64 mm

81.2-73.1 lb @ 1.600 in

  • Valve Springs Load - Open

957-893 N @ 29.85 mm

215-201 lb @ 1.175 in

  • Valve Stem to Guide Clearance - Exhaust

0.035-0.075 mm

0.0014-0.0029 in

  • Valve Stem to Guide Clearance - Inlet

0.019-0.053 mm

0.0007-0.0020 in

  • Valve Tip to Retainer Groove Centerline - Exhaust

5.38-5.90 mm

0.212-0.232 in

  • Valve Tip to Retainer Groove Centerline - Intake

4.94-5.46 mm

0.194-0.215 in

Application

Metric

English

General Data

  • Engine Type

L-4

  • Regular Production Option (RPO)

L 43

  • Displacement

2.2 L

134 CID

  • Bore

89 mm

3.5 in

  • Stroke

88 mm

3.46 in

  • Compression Ratio

8.85:1

  • Firing Order

1-3-4-2