Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1994CORSICA BASE, 2.2 4REPAIR AND DIAGNOSISENGINE MECHANICALMECHANICAL3.1L V6 - VIN [M]ENGINE SPECIFICATIONS
1994 Chevrolet Corsica Base, 2.2 4
Engine Specifications
1994 Chevrolet Corsica Base, 2.2 4SECTION Engine Specifications
GENERAL ENGINE SPECIFICATIONS
| Application | Specification |
|---|---|
| VIN "M" | RPO (L82) |
| Displacement | 191 Cu. In. (3.1L) |
| Bore | 3.50" (89.0 mm) |
| Stroke | 3.31" (84 mm) |
| Compression Ratio | 9.5:1 |
| Fuel System | PFI |
| Horsepower @ RPM | 155 @ 5200 |
| Torque Ft. Lbs. @ RPM | 185 @ 4000 |
CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Crankshaft End Play | .002-.008 (.06-.21) | |
| Main Bearings | ||
| Journal Diameter | 2.6473-2.6483 (67.241-67.265) | |
| Journal Out-Of-Round | .0002 (.005) | |
| Journal Taper | .0002 (.005) | |
| Oil Clearance | .0012-.0030 (.032-.077) | |
| Connecting Rod Bearings | ||
| Journal Diameter | 1.9983-1.9994 (50.758-50.784) | |
| Journal Out-Of-Round | .0002 (.005) | |
| Journal Taper | .0002 (.005) | |
| Oil Clearance | .0011-.0037 (.028-.086) | |
CONNECTING RODS SPECIFICATIONS
| Application | In. (mm) | ||||
|---|---|---|---|---|---|
| Maximum Bend | (1) .010 (.25) | ||||
| Maximum Twist | (2) .002 (.05) | ||||
| Side Play | .007-.017 (.18-.44) | ||||
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PISTONS, PINS & RINGS SPECIFICATIONS
| Application | In. (mm) | ||
|---|---|---|---|
| Pistons Clearance | .0009-.0023 (.022-.058) | ||
| Pins | |||
| Diameter | .9052-.9054 (22.992-22.997) | ||
| Piston Fit | .0004-.0008 (.010-.020) | ||
| Rod Fit | .0007-.0018 (.018-.046) | ||
| Rings | |||
| No. 1 | |||
| End Gap | .007-.017 (.18-.41) | ||
| Side Clearance | .0020-.0035 (.051-.089) | ||
| No. 2 | |||
| End Gap | .020-.028 (.51-.71) | ||
| Side Clearance | .0020-.0035 (.051-.089) | ||
| No. 3 (Oil) | |||
| End Gap | .010-.030 (.25-.76) | ||
| Side Clearance (Maximum) | .008 (.20) | ||
CYLINDER BLOCK SPECIFICATIONS
| Application | In. (mm) | |||
|---|---|---|---|---|
| Cylinder Bore | ||||
| Standard Diameter | 3.5046-3.5053 (89.017-89.035) | |||
| Maximum Taper | .0008 (.020) | |||
| Maximum Out-Of-Round | .0005 (.013) | |||
| Maximum Deck Warpage | (1) .005 (.13) | |||
|
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VALVES & VALVE SPRINGS SPECIFICATIONS
| Application | Specification | ||||
|---|---|---|---|---|---|
| Valves | |||||
| Face Angle | 45° | ||||
| Margin | |||||
| Exhaust | .106 (2.70) | ||||
| Intake | .083 (2.10) | ||||
| Valve Springs | |||||
| Free Length | 1.89" (48.5 mm) | ||||
| Installed Height | 1.71" (43.00 mm) | ||||
| Out-Of-Square | .063" (1.60 mm) | ||||
| Pressure (1) | |||||
| Valve Closed | 90 @ 1.70 (41 @ 43.2) | ||||
| Valve Open | 215 @ 1.29 (98 @ 32.8) | ||||
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CYLINDER HEAD SPECIFICATIONS
| Application | Specification | ||||
|---|---|---|---|---|---|
| Maximum Warpage | (1) .005" (.13 mm) | ||||
| Valve Seats | |||||
| Intake Valve | |||||
| Seat Angle | 46° | ||||
| Seat Width | .061-.073" (1.55-1.85 mm) | ||||
| Maximum Seat Runout | .001" (.03 mm) | ||||
| Exhaust Valve | |||||
| Seat Angle | 46° | ||||
| Seat Width | .067-.079" (1.7-2.0 mm) | ||||
| Maximum Seat Runout | .001" (.03 mm) | ||||
| Valve Stem-To-Guide Oil | |||||
| Clearance | .001-.003" (.03-.07 mm) | ||||
|
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CAMSHAFT SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Journal Diameter | ||
| Journals No. 1 & 4 | 2.009-2.011 (51.03-51.08) | |
| Journals No. 2 & 3 | 1.999-2.001 (50.77-50.83) | |
| Lobe Lift | ||
| Intake | .273 (6.93) | |
| Exhaust | .273 (6.93) | |
| Oil Clearance | .001-.004 (.03-.10) | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.