Connect plug wires in firing order 1-8-4-3-6-5-7-2. After the spark plug wire connector is removed from the plug, get your spark plug socket out, along with ratchet and extension (if needed) and remove the plug from the cylinder head. By doing them one at a time, you will not have to worry about accidentally switching the wires. The distributor cap on your engine is located towards the rear of the engine compartment. Each one will follow a path, using special wire clips that hold them in place. Also suggest to do one project at a time, so yeah one could replace the distributor o-ring at the same time, but probably best to do plugs and wires, make sure it runs fine, and then do distributor. Thanks! With the dist. Helpful 0 Not Helpful 0. The Bosch W9DC0 plug is a 13/16" diameter, so you will need a 13/16" spark plug socket to accommodate these plugs. Your manual can help you ID which pole is #1. Just be sure and do the plugs and wires one at a time. When removing wires from the spark plug or distributor cap, twist or rotate the boot to loosen it from the plug. Expert: Nathan McCullough Bio: … I have done a couple of tune ups on my 92, and the hardest thing is twisting the cap around to remove and replace. V8 distributor cap spark wires off by one position « on: June 20, 2015, 10:34:06 AM » On my '65, the wires are installed in correct firing order on cap, but I noticed that plug wire #4 is not in same position as the shop manual (next to cap window). Hook up a timing light to #1 plug wire. Remove and replace one wire at a time, starting with the longest wire. Typically the distributor is held in place by two or three bolts or a few clips on the side of the cap. I was going to add that the tool kit spark plug wrench works pretty handy for getting to #6. Replace your plug wires every 3 to 5 years or sooner if needed. Once you locate the cap, trace all of the wires into the spark plug locations. Locate the #1 spark plug wire pole on your distributor cap. This is for any Pontiac engine made before 1979. Removing the Old Spark Plug Wire Set. Good luck. Turn distributor body until rotor lines up with a sparkplug socket on cap. That is now #1 plug wire. Step 4: Remove spark plug wires: After you've marked the spark plug wires remove the spark plug wires from the distributor cap. Learn how to reroute the spark plug wires with step by step instructions in this free auto repair video. Remember that Pontiac distributors turn counter-clockwise. Both the cap and rotor should only be a couple screws holding them in. Step 5: Remove distributor cap: Once the plug wires have been removed, you'll be ready to remove the distributor cap. A 13/16th spark plug socket, ratchet and extensions with maybe a screwdriver or two should be all you need. I would recommend, remove the distributor cap with all wires still attached, then change out the rotor (make sure the new rotor goes on in the same position as the old, it should be keyed, but the extra time spent being careful about the clock position will pay off). The rotor simply pulls up and off. Step 1 – Locate the distributor cap and begin removing the wire clips. cap do the same, pull one wire and match it on the new cap. Doing them one at a time helps prevent mixing up the wires. The rotor is pretty much idiot proof. Changing or repairing a distributor cap in your car? Once the plug wires are off, and the hold downs unscrewed, the cap comes off with a little twisting and turning because of it being so recessed under the firewall. Install cap, and all wires on distributor. Some older inboard Mercruiser engines might have a reverse fire order so make sure to confirm your engine rotation. 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