engine

Crankshaft Position Sensor

for 1966 Chevrolet Corvette 327ci V8 · RWD

Difficulty

Easy

Time

1.2 h

Tools

Steps

This procedure documents the diagnosis and replacement attempt for a crankshaft position sensor on a 1966 Chevrolet Corvette 327ci V8, noting that this engine predates electronic engine management and does not have this component.

Warnings

ℹ️The 1966 Chevrolet Corvette 327ci V8 uses a points-based distributor ignition system and does not have a crankshaft position sensor. This component was not introduced on GM vehicles until the 1980s with electronic fuel injection and computer-controlled ignition systems.

⚠If you are experiencing no-start or ignition problems, diagnose the distributor points, condenser, ignition coil, or distributor cap and rotor instead.

Preparation

Verify the actual engine configuration and year of your vehicle, as this component does not exist on 1966 Corvette 327 engines
If your vehicle has been retrofitted with a modern EFI system or aftermarket electronic ignition, consult that system's documentation for sensor locations

Procedure

1
Verify Engine Management System Type
Inspect the engine to determine if it has the original carburetor and distributor system or if it has been converted to electronic fuel injection. The original 1966 327ci V8 uses a Rochester 4-barrel carburetor (or dual 4-barrel on high-performance models) and a mechanical points-based distributor. If these components are present, there is no crankshaft position sensor on this engine.
2
Identify Ignition Timing Components
Locate the distributor at the rear of the intake manifold (rear of the engine block), driven off the camshaft as is typical for a Chevrolet small-block V8. The distributor provides all timing information through mechanical advance mechanisms (centrifugal and vacuum). This system does not use electronic sensors for crankshaft position.
3
Document Aftermarket Modifications
If an aftermarket electronic ignition conversion kit or EFI system has been installed, document the manufacturer and model. Refer to that manufacturer's installation and service manual for sensor locations and replacement procedures, as these will vary by kit.

Reassembly

This procedure does not require reassembly as the component does not exist on this vehicle

Verification

Confirm that the 1966 Corvette 327ci V8 uses a distributor-based ignition system without crankshaft position sensors
If troubleshooting ignition problems, verify distributor point gap, condenser function, and ignition coil output instead