Question about 1991 Lincoln Mark VII
Are special tools needed to change spark plugs and wires? Anything I need to know about changing these?
A pair of decent long handled pliers/plug boot remover are recommended. apart from that, maybe some swivel pieces for the plug socket to get at funny angles.
- buy decent wires & plugs.
-put a dab of silicone on every wire boot to ensure easy fitting.
-Be verycareful when tightening the plugs so as not to crook the socket and crack the porcelain on the plug.
-Plugs should have a dab of copper grease or similar on the threads
-Plugs do not nee to be super tight, they have a compression washer at the base of the threads or a tapered thread fit that seals them well. only tighten them with a short length 3/8 ratchet not a big 1/2 inch - you'll strip the thread and regret that forever.
-Always make sure the wires dont touch the exhaust manifold and make them look like you just bought the vehicle, nice and straight and in tidy rows. You'll need a flat screwdriver, short, to undo enclosed plug wire harness mountings. be patient, they do unfasten ok once you suss em out.
-plugs are usually already correctly gapped. check them. gap can be check with Autozone or where u get the plugs from.Note the gap may be brand dependant - bosch platinum take a different gap to cheapo champions....
Hope you get a good job done
Posted on Jan 07, 2009
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