.054 inch ( confirm with the Vehicle Emission Control Information sticker in the engine
compartment )
According to this website http://www.therangerstation.com/tech_library/4cylinders.html The correct spark plug gap is 0.044in. That is for the 2.3l however, you may have a different engine.
.030 for both 2 and 4 cycle
A spark plug for a 2003 Mazda Protege has a 14 mm thread size, and a 19 mm reach. The gap is 1.1 mm.
Owners Manual shows the following (pg 217): Spark Plug Type: DENSO K16R-U NGK BKR5EY Spark Plug Gap: .031 inches or .8mm Shop Manual shows the following (pg SS-19 under service specifications - ignition) Recomended Spark Plug: Denso SK16R11 NKG IFR5A11 Electrode Gap 1.1mm (0.043 in.) To remove use 16mm spark plug wrench. When tightening, tighten to 13ft lbs I am not sure which gap takes presidence. When you are at the auto parts store or are looking at a specific spark plug manufactures catalog it should also tell you what gap to use on their plug for your application. If you get the irridium plugs you should not have to gap them (IE bosh 4501 http://www.spark-plugs.org/bosch-4501-platinum-ir-fusion-spark-plug/B000PL2AZCID.html) Good DIY Link: http://echodiy.multiply.com/journal/item/6/Spark_Plugs
Rj 19 lm
champion LM 19
V6 firewall 3 - 6 2 - 5 1 - 4 front -------------------------------------------------------------------- V8 firewall 4 - 8 3 - 7 2 - 6 1 - 5 front
The spark plug firing order is ( 1 - 4 - 2 - 5 - 3 - 6 ) The engine cylinders / spark plugs are numbered 1 , 2 , 3 from front to rear on the passenger side of the engine and 4 , 5 , 6 from front to rear on the drivers side of the engine The COIL PACK TOWERS ( coil pack is located on the drivers side of the 4.0 L SOHC engine ) are numbered : 5----1----coil 6-----2---pack 4-----3---plug
Denso has published the following specifications for the spark plug suitable for the Honda TMX 155. Name of plug: Denso X24ES-U. This name is a code for certain specifications, for this plug they are the following: X means Hex size, in this case 12 x 18 mm. 24 is the heat range. E is the reach of the plug, in this case 19 mm without a gasket. S stands for a non-projected spark plug. U means a particular shape of the electrode, in this case a cut ground electrode.
I'm not a mechanic / technician but I was looking at the 1997 Ford Explorer fuse panel diagram and I noticed that fuse # 19 is a 25 amp fuse for the ignition coil and PCM system
pull the cables, remembering which cable goes to which cylinder. check for carbon build-up on cable ends to see if cables are still good. remove plugs using spark plug socket oily sludge on plu ends will show unburned fuel/oil clean cable ends of build up, etc. set air gap according to spec install plugs and torque to spec, about 19 ft/lbs. re-install plug cables, and you should be good
The point gap is 17 to 19