General Motors 4.3L GM Engine — Distributor Removal/Installation
Repair & overhaul
For the General Motors 4.3L GM Engine, from the General Motors service manual.
Before you start
- Do not engage the starter or change positions of cam/crankshaft/timing gears while distributor is removed.
Procedure
- Turn OFF ignition.
- Remove spark plug wires from distributor cap by pulling and twisting each boot half turn.
- Remove ignition coil wire.
- Remove the electrical connector from the base of the distributor.
- Remove the two screws holding the distributor cap and remove cap.
- Mark the location of the rotor on the distributor housing and intake manifold.
- Remove the mounting clamp hold down bolt and carefully remove the distributor, marking rotor position.
- Installation: align rotor with second mark, place into engine in line with mark on intake manifold; rotor should rotate approximately 42 degrees and return to first mark.
- Install mounting clamp bolt and tighten to 25 N·m (18 ft. lbs.).
- Install cap, connect electrical connection, connect spark plug wires and coil wire; start engine and check for MIL.
Tools required
- Grease pencil Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Distributor mounting clamp bolt 25 N·m (18 ft. lbs.)
Source: General Motors service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.