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What is the easiest access route to the left hand rear spark plugs on an 87 mark vii lsc?
Wiki User
∙ 17y ago
Working one spark plug at a time, I removed the rubber boot from spark plug number 8. This is the spark plug closest to the steering wheel. If the boot hasn't been moved since 1984, then you may need to constantly twist it back and forth while pulling it away from the engine. Do not crimp the boot with a pair of pliers else, you will need to replace the entire set of wires. The spark plug wire removal tool, part number T74P-6666-A, works best. Place your 5/8 spark plug socket securely on the plug. Attach the ratchet directly to the socket. This is easier than trying to maneuver the ratchet and socket into this space for the first time. Ratchet out (unscrew) the spark plug. If the spark plug hasn't been moved since 1984, then you may need to ratchet the plug with LOTS of force for it's entire length of thread. If the plug was changed less than 30,000 miles ago, it should break free (be easy to turn) after one full revolution. If possible, disconnect the ratchet from the socket, turn the socket, and spark plug by hand. Each time that I've broken a spark plug, it has been number 8. Some people say that spark plug number 4, closest to the glove box, is the toughest spark plug to remove. If this is your first time, then yes, it will be the toughest. If you have a spark plug socket plus a universal joint plus a 12" extension plus a 6" extension and a ratchet, then it will be easier than it appears. I spent maybe six bucks for a spark plug socket with a built in universal joint. This thing is the best invention since sliced bread. I placed it on the spark plug by hand, then attached about 18" worth of extensions then gave it a turn and bingo, it was loose. I installed the spark plug by hand and then tightened it with the same tools. Yes, I have snapped this plug in the past. Yes, I have dropped this plug in the past (the bad one AND the good one). No, I have not burned myself on the engine because I ALWAYS wait until the engine is cold.
Wiki User
∙ 17y ago
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Is there a access panel to access rear spark plugs?
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