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Thread: HOW TO: Index Your Spark Plugs

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Posts: 31-40 of 61
2008-06-03 14:47:21
#31
I was thinking about this topic, I had a brand new set of BKR6E-11 and planning to replace it on my day off, could you use the washers attached to the old set of sparks?
2008-06-03 15:31:29
#32
The original washers should technically be the same thinkness, so that wouldnt do any good.

In my personal Opinion, it's not worth to spend $20 on those indexing washers, just try pick out the best spark plug thread per cylinder.
2008-06-03 15:44:00
#33
Originally Posted by Vadim
The original washers should technically be the same thinkness, so that wouldnt do any good.

In my personal Opinion, it's not worth to spend $20 on those indexing washers, just try pick out the best spark plug thread per cylinder.


They're the same thickness but I meant to use some extra washers (the ones from old sparks) until fit, may be in piston #1 would be @ 9 o'clock and using 1 extra washer would be near 6 o'clock

Is that posible?
2008-06-03 15:49:11
#34
So you just keep putting washers on the end of the spark plug until the black mark is facing towards the front, with the mark on front side?

What about the guys comment about using the other side as the guide?
2008-06-03 16:01:41
#35
Originally Posted by MR-4Door-SR20DE
So you just keep putting washers on the end of the spark plug until the black mark is facing towards the front, with the mark on front side?

What about the guys comment about using the other side as the guide?


If you use the other side as guide you will have to index at 12 o'clock, the point is to keep the 'arc' side of the flug pointing the admision valves
2008-06-03 17:02:25
#36
Originally Posted by kevo
They're the same thickness but I meant to use some extra washers (the ones from old sparks) until fit, may be in piston #1 would be @ 9 o'clock and using 1 extra washer would be near 6 o'clock

Is that posible?


The problem here is, the washers will lift the spark plug out of the cylinder too much. Thus keeping it out of where it needs to be

The way to go is by having the ground electrode facing 6 o'clock. This way it would block the flame from going into the exhaust valves instead of intake valves.


Originally Posted by MR-4Door-SR20DE
So you just keep putting washers on the end of the spark plug until the black mark is facing towards the front, with the mark on front side?

What about the guys comment about using the other side as the guide?


This really depends on where you decide to put the black mark. If you decide to put the black mark where the ground electrode is at then, it needs to face the exhaust valves.

If you put the mark where the spark plug gap is at, then you would need to face the intake valves.

I personally prefer using the first method. Because its easier to determine where to face the ground electrode.
2008-06-03 17:28:59
#37
What should be the max amount of washers that you would have to put on one plug? I don't want it lifted to much.
2008-06-03 17:59:02
#38
Originally Posted by MR-4Door-SR20DE
What should be the max amount of washers that you would have to put on one plug? I don't want it lifted to much.


Depends on the size of the washers and what washers you use. If use use the indexing washers, they come in 3 different thicknesses, so that you wouldn't have to use more then one.
2008-06-09 20:28:17
#39
I changed the sparks and tried indexing, after a lot of combinations I had this:

#1 ---> 8 o'clock
#2 ---> 6 o'clock
#3 ---> 6 o'clock
#4 ---> 6 o'clock

I changed the sparks, just bought the car and was using some Denso (PK20R11), I sticked some NGK copper BKR6E-11, didn't notice any difference or change in power
2008-06-09 20:30:48
#40
Originally Posted by kevo
I changed the sparks and tried indexing, after a lot of combinations I had this:

#1 ---> 8 o'clock
#2 ---> 6 o'clock
#3 ---> 6 o'clock
#4 ---> 6 o'clock

I changed the sparks, just bought the car and was using some Denso (PK20R11), I sticked some NGK copper BKR6E-11, didn't notice any difference or change in power



^Hmmmm............It might be a waste of time.
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