The presence of oil at the side of your transmission bell-housing and at the bottom of the distributor is a sign that the distributor's o-ring is leaking. Just like most seals, they wear out over time and need replacement. Replacing a distributor o-ring is a fairly easy and fun job to do on a lazy afternoon.
We listed the steps, reminders and tools that you will need to help you change your Geo Metro's distributor o-ring.
Tools that You'll Need:
- Wrench set
- Socket wrench set
- Flat-head screwdriver
- Phillips-head screwdriver
- A set of clean rags
- Brand new distributor o-ring
- Disconnect the battery's negative terminal to avoid electric shock.
- Always keep a first aid kit handy when working on your automobile projects.
- Check your vehicle owner's manual on how to locate the distributor. Make sure that the replacement parts are compatible to your vehicle's make and model.
- Always wear recommended safety equipment like closed-toe shoes, an industrial-grade dusk mask, safety goggles and gloves.
Step 1: Open your vehicle's hood, and locate the distributor. Remove the distributor's cap and the ignition coil cable connected to it.
Step 2: Locate the power cable going to the distributor and disconnect it.
Step 3: Use a socket wrench to remove the two T40 bolts or 12mm bolts securing the distributor to the distributor mounting plate on the head's driver side.
Step 4: Hold the distributor by its sides and gently pull it out from its socket.
Step 5: Take note of the distributor end's position because if the distributor is off by 180-degrees, your vehicle may not start or it may run poorly.
Step 6: Remove the worn-out o-ring and clean the oil on the side of the transmission, motor, and on the distributor.
Step 7: Clean the distributor shaft and make sure it's free from foreign debris. Install the new o-ring and apply a little lubricant on it. Carefully slide the new o-ring onto the distributor shaft, and make sure not to spin the distributor's end.
Step 8: Apply lubricant on the distributor's shaft and inside the distributor's mounting plate. Slide it back in and make sure that the rotor is in the correct position.
Step 9: Use a socket wrench to secure the mounting bolts on the mounting plate. Re-connect the distributor's power cable and ignition coil cable. Place the distributor cap and make sure it's secure.
Step 10: Reconnect the battery's negative terminal cable and close your vehicles hood.
Replacing a worn-out distributor o-ring will take about 20 minutes for an expert DIYer, and around 30 minutes for a beginner. Always exercise caution and have fun!