GM Service Manual Online
For 1990-2009 cars only

Engine Mechanical Specifications

Application

Specification

Metric

English

General Data

  • Engine Type

Inline 4 Cylinder

  • Displacement

2.4 L

146 CID

  • RPO

LE5

LAT

  • Liter (VIN)

LE5: B

LAT: 5

  • Bore

87.992-88.008 mm

3.4668-3.4675 in

  • Stroke

98 mm

3.861 in

  • Compression Ratio

10:01

Balance Shaft

  • Bearing Clearance

0.030-0.060 mm

0.0012-0.0024 in

  • Bearing Diameter - Inside - Carrier

20.050-20.063 mm

0.7894-0.7899 in

  • Bearing Diameter - Outside - Carrier

41.975-41.995 mm

1.6526-1.6534 in

  • Bearing Journal Diameter

20.000-20.020 mm

0.7874-0.7882 in

  • Bushing Clearance

0.033-0.102 mm

0.0013-0.0040 in

  • Bushing Diameter - Inside

36.776-36.825 mm

1.4479-1.4498 in

  • Bushing Journal Diameter

36.723-36.743 mm

1.4458-1.4466 in

  • End Play

0.050-0.300 mm

0.0020-0.0118 in

Block

  • Balance Shaft Bearing Bore Diameter - Carrier

42.000-42.016 mm

1.6535-1.6542 in

  • Balance Shaft Bushing Bore Diameter

40.763-40.776 mm

1.6048-1.6054 in

  • Crankshaft Main Bearing Bore Diameter

64.068-64.082 mm

2.5224-2.5229 in

  • Cylinder Bore Diameter

87.992-88.008 mm

3.4668-3.4675 in

  • Cylinder Bore Out-of-Round - Maximum

0.010 mm

0.0004 in

  • Cylinder Bore Taper - Maximum

0.010 mm

0.0004 in

  • Cylinder Head Deck Surface Flatness - Longitude

0.050 mm

0.002 in

  • Cylinder Head Deck Surface Flatness - Overall

0.08 mm

0.0031 in

  • Cylinder Head Deck Surface Flatness - Transverse

0.030 mm

0.0012 in

Camshaft

  • Camshaft End Play

0.040-0.144 mm

0.0016-0.0057 in

  • Camshaft Journal Diameter

26.935-26.960 mm

1.0604-1.0614 in

  • Camshaft Thrust Surface

21.000-21.052 mm

0.8268-0.8252 in

Connecting Rod

  • Connecting Rod Bearing Clearance

0.029-0.073 mm

0.0011-0.0029 in

  • Connecting Rod Bore Diameter - Bearing End

52.118-52.134 mm

2.0519-2.05252 in

  • Connecting Rod Bore Diameter - Pin End

20.007-20.021 mm

0.7877-0.7882 in

  • Connecting Rod Side Clearance

0.070-0.370 mm

0.0028-0.0146 in

  • Connecting Rod Straightness - Bend - Maximum

0.021 mm

0.0083 in

  • Connecting Rod Straightness - Twist - Maximum

0.04 mm

0.0157 in

Crankshaft

  • Connecting Rod Journal Diameter

49.000-49.014 mm

1.9291-1.9297 in

  • Crankshaft End Play

0.050-0.380 mm

0.0012-0.0150 in

  • Crankshaft Main Bearing Clearance

0.031-0.067 mm

0.0012-0.0026 in

  • Crankshaft Main Journal Diameter

55.994-56.008 mm

2.2045-2.2050 in

Cylinder Head

  • Overall Height - Minimum

128.9 mm

5.07 in

  • Surface Flatness - Block Deck - Longitude

0.050 mm

0.002 in

  • Surface Flatness - Block Deck - Overall

0.1 mm

0.004 in

  • Surface Flatness - Block Deck - Transverse

0.030 mm

0.0012 in

  • Valve Guide Bore - Exhaust

6.000-6.012 mm

0.2362-0.2367 in

  • Valve Guide Bore - Intake

6.000-6.012 mm

0.2362-0.2367 in

  • Valve Lifter Bore Diameter - Stationary Lash Adjusters

12.013-12.037 mm

0.4730-0.4739 in

Lubrication System

  • Oil Pressure - Minimum - @1000 RPM

344.75-551.60 kPa

50-80 psi

  • Oil Capacity

4.8L

5.0 quarts

Piston Rings

  • Piston Ring End Gap - First Compression Ring

0.15-0.30 mm

0.006-0.012 in

  • Piston Ring End Gap - Second Compression Ring

0.20-0.45 mm

0.008-0.018 in

  • Piston Ring End Gap - Oil Control Ring - Rails

0.15-0.51 mm

0.006-0.020 in

  • Piston Ring to Groove Clearance - First Compression Ring

0.04-0.08 mm

0.0015-0.0031 in

  • Piston Ring to Groove Clearance - Second Compression Ring

0.030-0.070 mm

0.0012-0.0030 in

  • Piston Ring to Groove Clearance - Oil Control Ring

0.027-0.176 mm

0.0011-0.0069 in

  • Piston Ring Thickness - First Compression Ring

1.170-1.190 mm

0.0461-0.0469 in

  • Piston Ring Thickness - Second Compression Ring

1.471-1.490 mm

0.0579-0.0587 in

  • Piston Ring Thickness - Oil Control Ring - Rail - Maximum

0.473 mm

0.0186 in

  • Piston Ring Thickness - Oil Control Ring - Spacer

1.460-1.537 mm

0.0575-0.0605 in

Pistons and Pins

  • Pin - Piston Pin Clearance to Connecting Rod Bore

0.007-0.026 mm

0.0003-0.0010 in

  • Pin - Piston Pin Clearance to Piston Pin Bore

0.004-0.014 mm

0.0002-0.0006 in

  • Pin - Piston Pin Diameter

19.995-20.000 mm

0.7872-0.7874 in

  • Pin - Piston Pin End Play

0.410-1.266 mm

0.0161-0.0498 in

  • Piston - Piston Diameter - @14.5 mm up

87.967-87.982 mm

3.4633-3.4638 in

  • Piston - Piston Pin Bore Diameter

20.004-20.009 mm

0.7876-0.7878 in

  • Piston - Piston Ring Groove Width - Oil Control

2.51-2.53 mm

0.0988-0.0996 in

  • Piston - Piston Ring Groove Width - Second

1.52-1.54 mm

0.0598-0.0606 in

  • Piston - Piston Ring Groove Width - Top

1.23-1.25 mm

0.0484-0.0492 in

  • Piston - Piston to Bore Clearance

0.010-0.041 mm

0.0004-0.0016 in

Valve System

  • Valves - Valve Face Runout - Maximum

0.04 mm

0.0016 in

  • Valves - Valve Seat Runout - Maximum

0.05 mm

0.0020 in

  • Valves - Valve Stem Diameter - Exhaust

5.935-5.950 mm

0.2337-0.2343 in

  • Valves - Valve Stem Diameter - Intake

5.955-5.970 mm

0.2344-0.2355 in

  • Valves - Valve Stem to Guide Clearance - Exhaust

0.050-0.077 mm

0.0020-0.0026 in

  • Valves - Valve Stem to Guide Clearance - Intake

0.030-0.057 mm

0.0012-0.0022 in

  • Valve Lash Adjusters - Valve Lash Adjuster Diameter - Stationary Lash Adjuster

11.986-12.000 mm

0.0005-0.0020 in

  • Valve Lash Adjusters - Valve Lash-Adjuster-to-Bore Clearance - Stationary Lash Adjuster

0.013-0.051 mm

3.2210-3.2299 in

  • Valve Springs - Valve Spring Load - Closed - @22.5 mm

525.0-575.0 N. - Eng Spec.

  • Valve Springs - Valve Spring Load - Open - @32.5 mm

245.0-271.0 N. - Eng Spec.