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Re: Spark plug replacement
Paul,
The service interval for the spark plugs is 100,000 MILES as far as I know, or just over 150,000km.
Replacing the plugs is EASY.
1) Using a vacuum or blow-gun, remove any dirt/sand from around the sparkplug boots.
2) Remove "zip tube" to access middle plugs on Driver's Side.
3) Using a 7mm wrench, remove the Coil retaining bolts (1 ea coil) and coils.
4) Disconnect the COP harness connectors (optional)
5) Using a 5/8" sparkplug socket and 6" extension loosen and remove plugs (if ANY sand etc. gets into the sparkplug well it may be very difficult to get the socket onto the plug flats. A small pick may be needed to loosen and remove debris).
6) Check gap on new plugs. If installing "Platinum" plugs, DO NOT alter the pre-set gap unless it is off by more than 0.004" from specs (0.052"-0.056").
7) Using a piece of rubber hose (~3/8" ID) slipped over plug insulator, install plugs finger tight into heads. Make SURE they do not cross thread.
8) Using a torque wrench, Tq plugs to spec. (13-15 ft-lbs). DO NOT OVERTORQUE or use ANY OIL or other lubricant (ie: neversieze) or you WILL overtorque the plugs.
9) Reinstall connectors, COP modules, and zip tube. Be sure to coat the exterior of the boots with dielectric grease, and to place a dab into the boots prior to installing.
You do not need to disturb the injectors or fuel rails. The COP modules will deflect enough so you can simply pull them out of the plug wells.
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