The Real Fix For Dodgy Coils (misfire At High Rpm)

[Nozila]

i did clean it with a dremel slightly, is ur's a s2 motor?(maybe i got a s2 motor, i duno) can any1 else answer this?

yes car is a series 2. and ignitors built in coilpack. but i didnt think that would have mattered?

[ceedub]

excelent work!

[SECURITY]

all we need now is more people to test and see if this works for them.

[justin911]

ya mine are like that to.. all shiny and clean looking... i was disapointed cause i was hoping theyd have heaps of crap on em

mines a s2 also.

just had a look at mine a while ago and it looks metal as well. unless the actual 'metal' is junk and once cleaned it comes up with the copper look.

[Cubes]

all we need now is more people to test and see if this works for them.

I'm doing mine now and will take pics.

Keep you posted.

[Hybrid33GTST]

going to my friends house saturday morning ... doing 2 s1 33's at the same time... will let u know how it goes... no pics sorry :S but will tell ya if its a fix his misses day and night mine only misses in the cold night

[Cubes]

got pics.

The coil that was arcing out the most did have the most crap in it.. But it isn't that bad. :S

I'll now clean them up and see how it goes.

You can see the darker off looking colour. The camera lightens it up quite a bit more but the color is quite dark.

[Cubes]

Cleaned up the small amount of crap inside the coil..

And noticed a cracks on all the coils, some noticeably cracked, others didn't look cracked but under the camera they obviously were starting to do so. Quite difficult to see but the camera in macro mode shows the crack very nicely.

And fingers crossed.. the silicon does something.. Either way I know I'm up for a set of coils and cleaning the inside in my case isn't going to jack.

Mine have been on the car for 220,000km's + what ever it was wound back. They were very clean in side the coils apart from one that only had a bit of gunk as posted above in a previous post.

They all had cracks in the same place. I was unable to find any others but its quite possible there is one under the bracket that holds them to the larger bracket.

[SECURITY]

good work mate.

keep us posted on how it goes.

the silicon might melt, so keep an eye on it somehow.

if it does melt, you might get away with pushing some araldyte into the crack as much as you can.

[Cubes]

A quick google - silicon has a melting point of ~1410degree's c.

http://www.google.com.au/search?hs=nAi&amp...earch&meta=

Hrmmm sounds a tad high as I've melted silicon in the past with a soldering iron, maybe 'pure' silicon?

[R33S2]

yeah pure silcon

[Cubes]

As I can only really see the first 3 coils, number 2 with the big crack in it still sparks and can be seen at night .

Number 1 and 3 that were only starting to crack don't light up anymore. I might pull them out again after a little driving and see if I can see arc marks and how the silicon is holding up.

[Hybrid33GTST]

just pulled mine out today.... originally they looked like the first pic posted on page 1.... grey crappy looking etc... could not see color... NOW they are nice and coppery shiny woooot lol had a few cracks used the industrial grade stuff ... 203C continuasly see how it goes when it dries and i put them back in!

[Cubes]

Hybrid..

Where were the cracks on your coils? Same position as mine?

[SECURITY]

so... does anyone want to post some results?

[Cubes]

All though I can still see the coils arcing out once warm I am no longer getting the pop/miss fire.

So it has worked, I'm not running much boost at the moment (12psi) so with more boost it may very well fall on its face again.

A new set of coils are going in none the less.

A mate of mine runs 16psi through a highflow and thats popping badly where a massive power loss is felt. I'll silicon up his in a week or so and let you all know how it goes.

Also.. The silicon is holding up perfectly fine. No peeling, melting etc.

I did make sure I cleaned the coils well prior (prepsol)

[Guest Rotary20B]

All though I can still see the coils arcing out once warm I am no longer getting the pop/miss fire.

So it has worked, I'm not running much boost at the moment (12psi) so with more boost it may very well fall on its face again.

A new set of coils are going in none the less.

A mate of mine runs 16psi through a highflow and thats popping badly where a massive power loss is felt. I'll silicon up his in a week or so and let you all know how it goes.

Also.. The silicon is holding up perfectly fine. No peeling, melting etc.

I did make sure I cleaned the coils well prior (prepsol)

What sort of silicon are you guys using? How long does it take to dry etc?

Mine misfires badly around 4k up running around 12psi.

I pulled the coils out on the weekend, couldn't see any cracks, mines looked like the pics on page 1 to begin with, cleaned up well.

Put them back in, not much difference, I did notice it was a little better, still can't give it full throttle though.

With the silicon and cleaning the coils, what are you gapping the plugs, .8 or 1.1?

[Cubes]

Plugs must be gapped at 0.8mm

The cracks are quite hard to see. I missed them at first. The ones that I thought were not cracked under the camera showed as they were indeed.

I think they must also crack some where else as I siliconed up the crack that I could see yet i can see it arcing on the opposite side.

Either way its fixed the pop for me for the mean while.

[Guest Rotary20B]

What plugs are you guys using?

[Cubes]

I've ued BCPR6E and recently dropped BKR7E in.