Well im at a situation where i dont know what wires off the coil go to which plugs.
i searched and nothing. i need this answered soon, as it is nearing the end of the day.
thanks

trevor

 

Page G-20 of the shop manual

 

thank you.

 

What? Everyone knows its 1-8-4-3-6-5-7-2....

 

Nahhhhh with a rotary it's much simpler.. Leading plug first, then trailing plug, 1st rotor, then second rotor, alternating of course.

 

You didn't happen to notice that the front coil has a sticker with a T1 & the rear coil is marked T2? The center (double wire coil) is marked L1 on the top & L2 on the bottom.

Then when you look at the side of the engine The top spark plug holes have a T casted in the housing & the bottom holes have an L?

 

on my old rotary truck it has the firing order listed on the emisions label under the hood. It just said "firing order 1-2"

 

It's 1 - 2 - 1 - 3 as Cantgostraight pointed out

L(1) - T1(2) - L(1) - T2(3)

 

T = Trailing = Top holes

L = Leading = Lower holes

1 = front rotor

2 = rear rotor

(The leading wires can be exchanged front to rear; it doesn't matter, except to say that you can balance wear and extend the life on the leading plugs' electrodes by occasionally swaping the wires to them--kind of like rotating your tires.)

 

Wow.... i havent heard that firing order in some time.

 

how does this work?

 

because the leading is wasted spark.

meaning...it fires the plugs in the power stroke and exhaust stoke

 

I know that, I thought he meant occasionally swapping the L1 and L2 leads back and forth... because that would do nothing.

 

^I agree it reads like that. That would be about as helpful as swaping the rear tires from left to right.

I would also like to add that I dont' think the stock leading and trailing wires are swappable due to them being different lengths and the trailing not being able to reach the leading, but I haven't swapped my wires in a while so I could be wrong.

 

I did say swap the leading wires and it does, in fact, work due to polarity.

The spark is primarily direct current and as such, tends to concentrate the heat on the anode--the positive electrode; the cathode (negative) will run much cooler. Did you ever notice that one side of the electrodes' gap wears faster and differently than the other? Wonder why that the leading plugs wear differently? All else being equal, this is why: polarity will affect electrode temperature, erosion and material transfer.

If you want to easily extend the life of fast-wearing or expensive plugs, then occasionally swap the Leading plug wires. Simple polarity change, no magic.

Any of you guys welders? If you run TIG, would you run with the tungsten positive? Of course not, you know it would overheat and melt down at a much lower current than EN. Hence my point about polarity.