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 MANUALSGMC1995FORWARD CONTROL 4.3 Z, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICALENGINE MECHANICAL 4.3L V6 - VIN [Z]OVERHAULCYLINDER BLOCK ASSEMBLYTHRUST BEARING
1995 GMC Forward Control 4.3 Z, Standard
Thrust Bearing
1995 GMC Forward Control 4.3 Z, StandardSECTION Thrust Bearing
- Install main bearing caps (except rear), and tighten cap bolts to specification. See TORQUE SPECIFICATIONS . Install rear main bearing cap and tighten cap bolts to 10 ft. lbs. (14 N.m).
- Tap crankshaft rearward then forward to align thrust surfaces. Tighten rear main bearing cap bolts to specification. Measure crankshaft end play at forward thrust surface of rear main bearing cap. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS table under ENGINE SPECIFICATIONS.
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.