GM Service Manual Online
For 1990-2009 cars only

Engine Mechanical Specifications

Application

Specification

Metric

English

General Data

  • Engine Type

Inline 4 Cylinder

  • Displacement

1.8 L

110 CID

  • RPO

2H0

  • VIN

T

  • Bore

80.50 mm

3.169 in

  • Stroke

88.20 mm

3.472 in

  • Compression Ratio

10.5:1

Block

  • Crankshaft Main Bearing Bore Diameter

54.980-54.991 mm

2.1646-2.1649 in

  • Cylinder Bore Diameter

80.50 mm

3.169 in

Camshaft

  • Camshaft Lift - Exhaust

8.3 mm

0.3267 in

  • Camshaft Lift - Intake

9.3 mm

0.3661 in

Crankshaft

  • Crankshaft End Play

0.100-0.202 mm

0.0039-0.0080 in

Cylinder Head

  • Valve Guide Bore - Exhaust

5.000-5.016 mm

0.1968-0.1975 in

  • Valve Guide Bore - Intake

5.000-5.016 mm

0.1968-0.1975 in

Lubrication System

  • Oil Pressure - Minimum - @1000 RPM

344.75-551.60 kPa

50-80 psi

  • Oil Capacity

4.5L

4.7 quarts

Piston Rings

  • Piston Ring End Gap - First Compression Ring

0.20-0.40 mm

0.008-0.016 in

  • Piston Ring End Gap - Second Compression Ring

0.40-0.60 mm

0.016-0.024 in

  • Piston Ring End Gap - Oil Control Ring - Rails

0.25-0.75 mm

0.010-0.030 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

0.0012-0.0028 in

  • Piston Ring to Groove Clearance - Oil Control Ring

0.030-0.130 mm

0.0012-0.0051 in

  • Piston Ring Thickness - First Compression Ring

1.170-1.190 mm

0.0461-0.0469 in

  • Piston Ring Thickness - Second Compression Ring

1.170-1.190 mm

0.0461-0.0469 in

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

0.43 mm

0.0169 in

  • Piston Ring Thickness - Oil Control Ring - Spacer

1.900-1.980 mm

0.0748-0.0780 in

Pistons and Pins

  • Pin - Piston Pin Clearance to Connecting Rod Bore

0.015-0.021 mm

0.0006-0.0008 in

  • Pin - Piston Pin Clearance to Piston Pin Bore

0.020-0.060 mm

0.0008-0.0024 in

  • Pin - Piston Pin Diameter

19.000 mm

0.7480 in

Valve System

  • Valves - Valve Stem Diameter - Exhaust

4.935-4.950 mm

0.1943-0.1949 in

  • Valves - Valve Stem Diameter - Intake

4.955-4.970 mm

0.1951-0.1957 in

  • Valves - Valve Stem to Guide Clearance - Exhaust

0.050-0.081 mm

0.0020-0.0032 in

  • Valves - Valve Stem to Guide Clearance - Intake

0.030-0.061 mm

0.0012-0.0024 in