Split Coilpacks

UniQgTs · 07-20-2012, 08:16 AM

Hey guys, I am wondering if anyone else has had their coilpacks split. When I recently diagnoised my misfire issue I saw that all four of my coilpacks were split or in early stages of spliting. Just wondering what I could do to prevent this from happening again and if there is a different coilpack out there that would be a better application of a forced induction 2zz rather than the stock Denso packs.

Gts*Jason · 07-20-2012, 09:10 AM

I have never had a problem with the coil packs, if anything using some kind of rubber care product to keep them from drying out would be ideal so they dont crack

**Boosted2.0** · 07-20-2012, 10:23 AM

The Lotus guys found a potting compound they coat the new coils with that works pretty well.

UniQgTs · 07-20-2012, 10:27 AM

Quote:

Originally Posted by Gts*Jason

I have never had a problem with the coil packs, if anything using some kind of rubber care product to keep them from drying out would be ideal so they dont crack

Quote:

Originally Posted by Boosted2.0

The Lotus guys found a potting compound they coat the new coils with that works pretty well.

If you know the name of the product I would love to get some and check it out.

**monkeywrench** · 07-23-2012, 10:24 AM

We are seeing that more and more. It's worst in high heat applications like road course cars and after a while leads to coil failure and misfires. Often they look a bit rusty even with no moisture present around the cracks. We see it in early model coils as well as some Lotus engines so it is not a model year specific issue.

We just replace them when they go bad. Many cars ahve coil heat issues, I know the EVO is a good example. Ours hold up well most of the time but unfortunately coils can be considered a wear item so they do fail sometimes. Fortunately it's relatively uncommon and they last a long time generally.

Malta-Celica · 07-24-2012, 03:43 AM

Does problem this sound like you have a broken exhaust manifold but it is actually something else? I noticed that sometimes (for the past 3 days) the car does this. I changed the spark plugs and it seemed to work for about 2 days and the misfiring/ noise has slowly started to return.

**monkeywrench** · 07-24-2012, 08:46 AM

It just sounds like a steady misfire.

Malta-Celica · 07-24-2012, 10:22 PM

Yeah could be. Car is running rich as hell and I am not happy with my tuner for this

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