i want to replace the spark plugs on my supra tt. what are the steps?
• buy 6 new spark plugs from toyota (toyota part number # 90919-01178) or by choosing from section 1 above.also buy 2 crankcase hoses, toyota part number 12263-46010 & 12264-46010 (if needed) • with allen wrench (5mm) remove top cover of engine,10 screws. • remove the two crankcase vent hoses that run between the valve covers. • using small screwdriver, release the wiring harness clips. • unbolt the ignition coils (coil packs).there is a 10mm bolt on each side.there are 3 coil packs. • disconnect wiring from the coil packs.two connectors per pack. • lift out coil pack. • use deep well 5/8th socket to remove plugs. • gap (if needed) and install the new plugs (torque it to 13 ft/lbs).stock plug gap is .043 or 1.1mm, for bpu try stock gap or a lower setting like .035 if your engine is missing. • install coil packs… make sure you have a good seal on the plug. • connect wiring and re-clip wiring harness(2) to clip.make sure each harness routes *below* the crankcase vent. • install crankca
