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 MANUALSCHEVROLET1984BLAZER FULL SIZE V8-379 6.2L DSLREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYCRANKSHAFT, ENGINE
1984 Chevrolet Blazer Full Size V8-379 6.2L DSL
Crankshaft, Engine
1984 Chevrolet Blazer Full Size V8-379 6.2L DSLSECTION Crankshaft, Engine
Journal/Bearing Dimensions
| Crankshaft Journals | Main Bearing Journal Diameter | - Note: Exc. No. 5, 2.9495-2.9504 inches; No. 5, 2.9492-2.9502 inches. |
| Connecting Rod Journal Diameter | 2.3981-2.3991 Inch (in) | |
| Maximum Out Of Round All | 0.0002 Inch (in) | |
| Maximum Taper All | 0.0002 Inch (in) | |
| Runout Service Limit | - Note: If main journals are misaligned, crankshaft is bent and should be replaced. | |
| Bearing Clearance | Main Bearings | - Note: Exc. No. 5, .0017-.0032 inch; No 5, .0021-.0036 inch. |
| Thrust Bearing | .002-.007 Inch (in) |
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.