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 MANUALSPONTIAC19866000 BASE, 2D COUPE, 2.5 RREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICAL2.5L 4-CYL - VINS [R,U,2]ENGINE SPECIFICATIONSBEARING SPECIFICATIONS
1986 Pontiac 6000 Base, 2D Coupe, 2.5 R
Bearing Specifications
1986 Pontiac 6000 Base, 2D Coupe, 2.5 RSECTION Bearing Specifications
CRANKSHAFT MAIN & CONNECTING ROD BEARINGS SPECIFICATIONS
| Application | In. (mm) | |||
|---|---|---|---|---|
| Main Bearings | ||||
| Journal Diameter | (1) 2.3 (58.42) | |||
| Clearance | .0003-.0022 (.008-.056) | |||
| Thrust Bearing | No. 5 | |||
| Crankshaft End Play | .0035-.0085 (.089-.216) | |||
| Connecting Rod Bearings | ||||
| Journal Diameter | (1) 2.0 (50.8) | |||
| Clearance | .0005-.0026 (.013-.066) | |||
| Side Play | .006-.022 (.15-.56) | |||
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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.