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 MANUALSPONTIAC19906000 LE, 4D SEDAN, 2.5 RREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICAL2.5L 4-CYL - VINS [R,U]ENGINE SPECIFICATIONSBEARING SPECIFICATIONS
1990 Pontiac 6000 LE, 4D Sedan, 2.5 R
Bearing Specifications
1990 Pontiac 6000 LE, 4D Sedan, 2.5 RSECTION Bearing Specifications
CRANKSHAFT MAIN & CONNECTING ROD BEARINGS SPECS
| Application | In. (mm) | |
|---|---|---|
| Crankshaft End Play | ||
| VIN R | .0059-.0100 (.13-.26) | |
| VIN U | .0059-.0110 (.13-.28) | |
| Main Bearings | ||
| Journal Diameter | 2.30 (58.4) | |
| Journal Out-of-Round | .0005 (.013) | |
| Journal Taper | .0005 (.013) | |
| Oil Clearance | .0005-.0022 (.013-.056) | |
| Connecting Rod Bearings | ||
| Journal Diameter | 2.000 (50.80) | |
| Journal Out-of-Round | .0005 (.013) | |
| Journal Taper | .0005 (.013) | |
| Oil Clearance | .0005-.0030 (.013-.076) | |
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.