leading should be the bottom plugs. if you look on the engine there will be a L and a T next to the spark plug holes.L for leading T for trailing.
The RX8 has 4 spark plugs or two plugs per rotor. Each rotor has a leading and a trailing plug, the trailing fires a little bit after the leading plug.
NGK Inidium RX-8 spark plugs.
Where are the spark plugs on a 2004 mazda rx8?
that he must remove to get to spark plug rear of the cylinders
next to each spark plug there should be a 5mm tall...T or L (trailing or leading) the spak plugs are different on the electrodes
there is no gapping needed
Each spark plug has it's own ignition coil, they are on the spark plug itself. Unplug the ignition coil connector, remove the bolt holding the coil in place, pull the coil off of the spark plug and out of the valve cover. Install the new coil.
If I'm not mistaken it sounds like you've blown a water seal! Overheated?
91 or higher.
The spark plug firing order for the 2007 Lexus RX 350, which is equipped with a 3.5L V6 engine, is 1-2-3-4-5-6. This means that the cylinders fire in the sequence starting from cylinder 1 and moving through to cylinder 6. Typically, the cylinder layout is front to back, with cylinder 1 being on the passenger side.
its broken
Easiest way to remember is the leading - "L" Lower and trailing "T" Top plugs. Therefore in the housing as it sits in the vehicle the lower pair is leading and the upper pair is trailing.