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 MANUALSCHEVROLET1985IMPALA 4.3 Z, 700R4/MD8REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMCARBURETOR - ROCHESTER E4MC/E4MEADJUSTMENTSSECONDARY THROTTLE VALVE LOCK-OUTLOCK-OUT LEVER SIDE CLEARANCE
1985 Chevrolet Impala 4.3 Z, 700R4/MD8
Lock-Out Lever Side Clearance
1985 Chevrolet Impala 4.3 Z, 700R4/MD8SECTION Lock-Out Lever Side Clearance
- Hold choke valve and throttle valves completely closed. See Fig 1.
- Measure secondary throttle valve lock-out specified side clearance between pin and lock-out lever.
- Specified lock-out lever side clearance is .015" (.381 mm). To adjust, bend pin.
RENDER: 1.0x
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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.