GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

General Data

  • Engine Type

Inline 4 Cylinder

  • Displacement

2.4 Liter (146 CID)

  • Liter (VIN)

T

  • RPO

LD9

  • Bore

90 mm

3.54 in

  • Stroke

94 mm

3.70 in

  • Compression Ratio

9.5 to 1

  • Firing Order

1-3-4-2

Lubrication System

  • Oil Capacity Without Filter Change

3-3/4 Liters

4 qts

  • When Changing the Oil Filter, Up to an Additional 0.946 Liter or One Quart of Oil May Be Needed. Filter Type or Equivalent

PF-44

  • Oil Pressure @ 3000 RPM

207 kPa

30 psi min.

  • Oil Pressure @ 900 RPM

69 kPa

10  psi min.

Cylinder Block

  • Cylinder Bore Diameter

89.994-90.006 mm

3.5110-3.5435 in

  • Out Of Round Maximum

0.010 mm

0.0004 in

  • Taper Maximum. Top to 106 mm (4.173 in) Down

0.008 mm

0.0003 in

  • Runout Rear Face of Block to the Crankshaft. Center Line Maximum

0.07 mm

0.002 in

Cylinder Head

  • Cylinder Head Maximum Overall Flatness Variation

0.076 mm

0.003 in

  • Cylinder Head Maximum Flatness Variation Over 25.4 mm (1.0 in)

0.254 mm

0.001 in

  • Cylinder Head Maximum Flatness Variation Over 152.4 mm (6.0 in)

0.508 mm

0.002 in

  • Do Not Resurface if the Overall Measurement is Less Than

0.076 mm

0.003 in

  • Resurface the Head if the Overall Measurement is More Than

0.076-0.25 mm

0.003-0.010 in

  • Replace the Head if the Overall Measurement is More Than

0.25 mm

0.010 in

  • Volume

59.8 cc-61.0 cc

1.5825 oz-1.6501 oz

  • Runout

0.05 mm

0.00196 in

  • Valve Seat Diameter Intake

34.066 mm

1.3412 in

  • Exhaust

27.048 mm

1.1436 in

  • Intake Valve Guide ID

5.921-5.941 mm

0.2331-0.2339 in

  • Exhaust Valve Guide ID

5.908-5.928 mm

0.2326-0.2334 in

  • Valve Stem to the Valve Guide Clearance Intake

0.024-0.070 mm

0.000986-0.00275 in

  • Exhaust

0.037-0.082 mm

0.00150-0.00320 in

Piston

  • Clearance in the Bore

0.010-0.038 mm

0.0006-0.0015 in

  • Compression Height

29.27-30.03 mm

1.180-1.182 in

  • Piston Diameter at 70°F (21°C)

89.968-89.984 mm

3.5420-3.5427 in

  • Piston Pin Bore ID at 70°F (21°C)

22.002-22.006 mm

0.8662-0.8664 in

  • Weight Less Pin and Rings

345 g +/- 6 g

12.075 oz +/- 0.1764 oz

  • Ring Groove Width, Top Compression

1.23-1.25 mm

0.048-0.049 in

  • Ring Groove Width, Second Compression

1.52-1.54 mm

0.0598-0.0606 in

  • Ring Groove Width, Oil

3.01-3.03 mm

0.1185-0.1193 in

Piston Rings

  • Compression Ring Width, Top Ring

1.170-1.190 mm

0.0461-0.0469 in

  • Compression Ring Gap, Top

0.15-0.30 mm

0.006-0.012 in

  • Compression Ring Side Clearance in the Groove, Top Ring

0.040-0.080 mm

0.0016-0.0031 in

  • Compression Ring Width, Second Ring

1.470-1.490 mm

0.0578-0.0586 in

  • Compression Ring Gap, 2nd Ring

0.25-0.40 mm

0.0098-0.0160 in

  • Compression Ring Side Clearance In Groove, Second Ring

0.030-0.070 mm

0.0012-0.0028 in

  • Oil Ring Width (Ring Package)

2.825-3.010 mm

0.1112-0.1185 in

  • Oil Ring Gap

0.25-0.76 mm

0.0098-0.0299 in

  • Oil Rail Width

0.385-0.440 mm

0.0151-0.0173 in

Piston Pin

  • Diameter

21.995-22.000 mm

0.8659-0.8661 in

  • Pin to Piston Clearance Loose @ 21°C (70°F)

0.002-0.011 mm

0.00007-0.00043 in

  • Pin to Rod Clearance

0.007-0.032 mm

0.00027-0.0013 in

  • Weight

109 g

4.0207 oz

  • End Play on Floating Pin

0.0-0.6 mm

0.00-0.0236 in

Crankshaft and Connecting Rod

  • Main Bearing Journal Diameter

60.00-60.024 mm

2.3622-2.3631 in

  • Width, Main Thrust Bearing Journal No. 3, Including Fillets

27.837-27.913 mm

1.0959-1.0989 in

  • Out of Round Maximum

0.005 mm

0.0002 in

  • Straightness, Taper

0.007 mm

0.0003 in

  • Crankshaft Bearing Clearance

0.010-0.060 mm

0.00039-0.0023 in

  • Main Bearing Inside Diameter

60.019-60.060 mm

2.3629-2.3645 in

  • Crankshaft End Play

0.087-0.243 mm

0.0034-0.0095 in

  • Rod Bearing Journal Diameter

47.975-48.00 mm

1.8887-1.8897 in

  • Rod Bearing Inside Diameter

48.001-48.043 mm

1.8898-1.8914 in

  • Out of Round

0.005 mm

0.0002 in

  • Straightness, Taper

0.007 mm

0.0003 in

  • Connecting Rod Bearing Clearance

0.010-0.068 mm

0.00039-0.0026 in

  • Rod Side Clearance

0.150-0.450 mm

0.0059-0.0177 in

  • Connecting Rod Journal Width

23.370-23.750 mm

0.9200-0.9350 in

  • Runout of Crankshaft at the Flywheel Flange Maximum

0.050 mm

0.002 in

  • Runout of Crankshaft Maximum

0.050 mm

0.002 in

  • Supported on Front and Rear Journals Clearance to the Crankshaft Position Sensor

0.77-1.77 mm

0.0303-0.0697 in

  • Connecting Rod ID at the Small End

22.007-22.027 mm

0.8664-0.8672 in

  • Connecting Rod ID at the Large End

51.167-51.193 mm

2.0144-2.0154 in

  • Connecting Rod Width at the Small End

23.170-23.220 mm

0.9122-0.9142 in

  • Connecting Rod Width at the Large End

23.170-23.220 mm

0.9122-0.9142 in

  • Connecting Rod Weight, in the Same Engine, All Within

2 g

0.0705 oz

  • Connecting Rod Clearance to Piston Pin

0.007-0.032 mm

0.00027-0.0122 in

  • Rod Assembly Center to Center Distance

144.95-145.05 mm

5.7066-5.7106 in

  • Flywheel Fit

0.000-0.013 mm loose

0.0000-0.0005 in

  • Flange Runout Maximum

0.03 mm

0.00120 in

  • Stroke of Crank

94 mm

3.70 in

  • ID of Seal Diameter on Crank

81.96-82.04 mm

3.2210-3.2299 in

  • Runout of Seal Surface

0.05 mm max

0.002 in

  • Balancer Hub ID to Crank Snout OD

33.00-33.03 mm

1.2992-1.3004 in

  • ID Balancer

33.00-33.03 mm

1.2992-1.3004 in

  • Timing Gear Fit to Crankshaft Snout

33.03-33.06 mm

1.3004-1.3016 in

Camshaft

  • Lobe Lift Intake

9.0 mm

0.354 in

  • Exhaust

8.8 mm

0.346 in

  • Journal Diameter No. 1

39.93-39.95 mm

1.5720-1.5728 in

  • Journal Diameter No. 2-5

34.93-34.95 mm

1.3751-1.3760 in

  • Camshaft Bearing ID No. 1

40.00-40.040 mm

1.5748-1.5764 in

  • Camshaft Bearing ID No. 2-5

35.00-35.040 mm

1.3780-1.3795 in

  • Journal Clearance

0.050-0.110 mm

0.0019-0.0043 in

  • End Play Clearance

0.025-0.225 mm

0.0009-0.0088 in

  • Lobe Taper

0.046-0.083 mm

0.0018-0.0033 in

  • On diameter in

14.0 mm

0.5512 in

Camshaft Housing

  • Lifter Bore ID

33.989-34.019 mm

1.3381-1.3393 in

  • Lifter OD

33.959-33.975 mm

1.3369-1.3375 in

  • Lifter to Bore Clearance

0.016-0.058 mm

0.0006-0.0023 in

  • Lip Seal Bore ID

49.975-50.025 mm

1.9675-1.9695 in

  • Lip Seal OD

49.975-50.025 mm

1.9675-1.9695 in

  • Cam Carrier Flatness

0.07 mm

0.0028 in

  • Bottom Maximum Within 100.0 mm (3.937 in)

0.025 mm

0.001 in

Valve Lifter

  • Clearance in Bore

0.016-0.058 mm

0.0006-0.0023 in

Valves

  • Valve Installed Height, All

24.86-25.62 mm

0.9787-1.0024 in

  • Valve Tip Above Spring Retainer, All

0.602-0.820 mm

0.0237-0.0323 in

  • Intake Valves, Valve Face Angle

46 degrees

  • Valve Seat Angle

45 degrees

  • Head Diameter

35.5 +/- 0.03 mm

1.3987 +/- 0.0011 in

  • Stem Diameter

5.921-5.941 mm

0.2331-0.2339 in

  • Overall Length

107.290 mm

4.2272 in

  • Stem To Guide Clearance

0.025-0.069 mm

0.0009-0.0025 in

  • Valve Seat Width

0.94-1.90 mm

0.0370-0.0748 in

  • Valve Seat Margin Minimum

0.25 mm

0.0098 in

  • Valve Face Runout

0.038 mm

0.0015 in

  • Valve Tip to the Groove Centerline

3.420 mm

0.1346 in

  • Exhaust Valves, Valve Face Angle

45.5 degrees

  • Valve Seat Angle

45 degrees

  • Head Diameter

28.870-29.130 mm

1.1366-1.1469 in

  • Stem Diameter

5.908-5.928 mm

0.2326-0.2334 in

  • Overall Length

108.17 mm

4.2586 in

  • Stem to Guide Clearance

0.038-0.082 mm

0.0016-0.0032 in

  • Valve Seat Width

0.094-1.90 mm

0.0037-0.0748 in

  • Valve Seat Margin Minimum

0.25 mm

0.0098 in

  • Valve Face Runout

0.038 mm

0.0015 in

  • Valve Tip to Groove Centerline

3.420 mm

0.1346 in

Valve Springs

  • Valve Spring Pressure Load @ 36.5 mm (1.4370), Closed

223-247 N

50-55 lb

  • Load @ 26.98 mm (1.0622 in), Open

544-596 N

122-133 lb

Balance Shafts

  • Housing Flatness Maximum

0.076 mm

0.0030 in

  • Bore Roundness

0.025 mm

0.0009 in

  • Bearing Thickness

1.500-1.508 mm

0.0590-0.0593 in

  • Bearing ID

30.019-30.061 mm

1.1819-1.1835 in

  • Housing Bore

33.025-33.050 mm

1.3001-1.1801 in

  • Shaft Journal OD

29.950-29.975 mm

1.1791-1.1801 in

  • Journal Taper (Intentional Towards Counterweight)

0.012 mm

0.00047 in

  • Journal Roundness Maximum

0.005 mm

0.0002 in

  • Bearing Clearance

0.044-0.111 mm

0.0017-0.0044 in

  • Gear Diameter

61.020-61.070 mm

2.4023-2.4043 in

  • Gear Backlash

0.074-0.147 mm

0.0029-0.0057 in

  • Chain Slack, with 3 lb of Pressure Applied to the Guide

1.0 mm

0.040 in

  • Balance Shaft Chain Guide Wear Maximum Groove Depth.

2.5 mm

0.100 in

  • Shaft Groove Width

3.23-3.40 mm

0.127-0.134 in

  • Thrust Plate Thickness

2.945-3.045 mm

0.1159-0.1199 in

  • Endplay

0.185-0.455 mm

0.0073-0.0179 in

Oil Pump

  • Gerotor Pocket Depth

15.30-15.35 mm

0.6023-0.6043 in

  • Diameter

45.050-45.100 mm

1.773-1.775 in

  • Inner Gerotor Tip Clearance Maximum

0.1 mm

0.0059 in

  • Outer Gerotor Diameter Clearance

0.050-0.150 mm

0.0019-0.0059 in

  • Outer Gerotor Thickness

15.225-15.250 mm

0.5994-0.6003 in

  • Oil Pump Drive to Driven Gear Backlash

0.075-0.140 mm

0.0029-0.0055 in