Tools You'll Likely Need:
* Socket set and wrench set: Various sizes, including those for the distributor hold-down bolt(s) and possibly the distributor cap retaining screws.
* Screwdriver set: Phillips and flathead, depending on your vehicle's specific distributor.
* Distributor removal tool (optional but helpful): This tool helps remove the distributor without damaging it.
* Wrench for the crankshaft bolt: To ensure proper timing.
* Timing light: Crucial for setting the ignition timing correctly after installation.
* Rags or shop towels: To keep things clean.
* Pencil or marker: For marking the rotor position and distributor location.
* New distributor: Obviously! Make sure you get the correct one for your year and engine.
Steps:
1. Disconnect the Battery: This is crucial to prevent electrical shocks and accidental short circuits.
2. Locate the Distributor: It's usually on the top of the engine, near the firewall.
3. Mark the Rotor Position: Before removing anything, carefully mark the position of the rotor relative to the distributor housing and the engine. This is vital for proper timing later. You can use a marker or a piece of tape. Also, mark the distributor's location relative to the engine block.
4. Disconnect the Components:
* Ignition coil wire: Carefully disconnect the wire leading from the distributor cap to the ignition coil.
* Distributor cap: Remove the distributor cap and mark the orientation of the wires before disconnecting them. Photographing this is highly recommended.
* Vacuum advance line (if applicable): Disconnect any vacuum lines connected to the distributor.
* Electrical connections: Disconnect any other electrical connectors attached to the distributor.
5. Remove the Distributor Hold-Down Bolt(s): Loosen and remove the bolt(s) securing the distributor to the engine.
6. Remove the Distributor: Carefully wiggle the distributor out of the engine block. A distributor removal tool can make this significantly easier and less likely to damage the distributor. Pay attention to how it comes out; you'll need to install the new one the same way.
7. Install the New Distributor:
* Carefully align the new distributor with the distributor shaft hole in the engine block.
* Install the distributor, ensuring that it fits securely.
* Tighten the hold-down bolt(s). Do not overtighten.
8. Reconnect the Components:
* Attach the vacuum advance line (if applicable).
* Connect the electrical connectors.
* Connect the distributor cap, ensuring that the rotor is in the same position (relative to the engine) as marked in step 3. Reconnect the ignition wires according to your marks (or photo).
* Reconnect the ignition coil wire.
9. Set the Ignition Timing: This is critical. Use a timing light to adjust the ignition timing according to the specifications in your repair manual. This usually involves loosening the distributor slightly and rotating it until the timing mark aligns correctly. This step requires accuracy and usually involves someone else to crank the engine.
10. Reconnect the Battery: Reconnect the battery terminals.
11. Test the Engine: Start the engine and listen for any unusual noises or problems. Check for proper engine operation.
Important Considerations:
* Engine Timing: Getting the timing right is absolutely crucial. An improperly timed engine can run poorly, damage itself, or even fail to start. If you're unsure about this step, seek professional assistance.
* Repair Manual: A factory service manual for your specific year and model S10 is invaluable. It contains detailed instructions, torque specifications, and diagrams.
* Safety: Always disconnect the battery before working on any electrical components of your vehicle. Work in a well-ventilated area.
This is a general guide. Improper installation can lead to significant engine damage. If you lack the necessary experience or tools, it's best to have a qualified mechanic perform this repair.
