Rb25 Engine Coil Pack Cover

[rondofj]

Hi guys,

I just changed my coil packs on my neo motor and just wondering if it is ok to leave the coil packs exposed (not putting back the long black rectangular cover panel), I have seen a lot of engine bays with exposed coil packs but my flatmate thinks there might be risks of water/ moisture getting in from the bonnet edges and splashing up from the road while driving. Are there many of you driving without this cover on and anyone see any probs??? The reason i wana leave it out is for easy quick maintenance swapping out the coils n spark plugs when the need arises.

[StevenCJR31]

The nissan engineers know best . . .leave it on

[rondofj]

Anyone else please?

[Moodles2]

At the track it's a good idea to take it off to stop the coils from being cooked, but probably unnecessary to do with street driving. I know I leave my cover on when not at the track.

[wolverine]

The nissan engineers know best . . .leave it on

Is that why neo coils invariably fail...since their engineers know best?

I have removed the coil pack on both cars and have driven that way for over 11yrs and 6 yrs with no issues after replacing the factory coil packs with splitfires. The heat seems to be a factor in killing them so why not take it off.

[V28VX37]

I just changed my coil packs on my neo motor and just wondering if it is ok to leave the coil packs exposed (not putting back the long black rectangular cover panel), I have seen a lot of engine bays with exposed coil packs but my flatmate thinks there might be risks of water/ moisture getting in from the bonnet edges and splashing up from the road while driving. Are there many of you driving without this cover on and anyone see any probs??? The reason i wana leave it out is for easy quick maintenance swapping out the coils n spark plugs when the need arises.

It doesn't really matter either way with normal driving, I've run my Neo without for over half a year, no issues. Some people say you can be defected for running without, blah blah. I suppose it's whatever you feel comfortable with.

Is that why neo coils invariably fail...since their engineers know best?

Indeed, I've never heard any other engines have as many issues with the coils as the RBs... Oh well at least it's an easy swap.

[rondofj]

Oh thanks guys then I guess it is ok to leave it open, in fact it seems like a better idea as you saying the heat kills coilpacks, but what about water/ moisture going in?? And possibly puddling up in the coil pack cavity as well?

[wolverine]

What water? Do you have a vented bonnet?

[SargeRX8]

I leave it off, I had a vented bonnet, water got in there but never an issue. It looks better on but with all electronics, they will fail under heat and work inefficiently. Leave it off or get a nice vented one

[rondofj]

Thanks, off it stays!

[StevenCJR31]

The cover is vented thru slots on the timing belt cover and air flows thru them and out the back of the coil cover near the fire wall, , , beats crud dropping in the motor when you change spark plugs

Edited December 18, 2011 by StevenCJR31

[mad082]

+1 for leaving it off. keeps them cooler as well as actually keeping them free from moisture. the reason being that while moisture may get the them a bit easier, it can also get away from them easier. for example, if you degrease the engine, the cover doesn't seal that well and water will get in around the coils (know this from experience). with the cover offer, after a bit of driving around most of the water will be gone. leave the cover on and even after a few days the water will still be there because it can't evaporate easily (well it does, but it just stays under the cover as steam and then into water droplets and only a small amount of it actually gets vented - also know this from experience).

as for crud dropping into the motor when you change your plugs, if you are stupid enough to pull the plugs out with crud in the valley then you have no-one to blame but yourself. anyone with half a brain would clean it out before hand.

[Hanaldo]

The cover is useless for keeping out moisture/dirt anyway, the holes for the bolts to go through leak and there is a big gap at the back as well. You need a substantial amount of water to cause any problems, you won't get anywhere near enough just splashing up from the road.

I've had mine off for about a year now, no problems.

[SargeRX8]

I use an air compressor to blow crud out before changing my plugs.

[Bsa]

i just drilled a serries of holes through mine neatly. so it gets the best of both worlds all comes doen to what your happy with

[jjman]

Is that why neo coils invariably fail...since their engineers know best?

I have removed the coil pack on both cars and have driven that way for over 11yrs and 6 yrs with no issues after replacing the factory coil packs with splitfires. The heat seems to be a factor in killing them so why not take it off.

i dont think they have done that bad a job. These cars are usually between 12-17 years old now. N for what they do (and how much more we get them to do) n how well they hold together is quiet an achievement.

[hyundais cant even seem last 10 years at 100hp out of a 2litre!]

its a part that breaks down over time. perhaps particularly in the aussie heat conditions (that they werent designed for).

N for what its worth iv run the cover off for 2 years with no probs (on spitfires). Tho got a custom vented one to go on so it looks a bit more kosher for the fuzz. (its all looking pretty modded under there now so dont want to give the boys an excuse if they arent happy with my style...)

Edited December 19, 2011 by jjman

[Hanaldo]

Is that why neo coils invariably fail...since their engineers know best?

Stock coils are still the best, they just don't last for 15 years, they're a perishable. If I had a choice between new OEM coils and Splitfires for the same price, I would go the OEM's.

Edited December 19, 2011 by Hanaldo

[SargeRX8]

Stock coils are still the best, they just don't last for 15 years, they're a perishable. If I had a choice between new OEM coils and Splitfires for the same price, I would go the OEM's.

I got brand new OEM's for half the price of Splitfires

[jjman]

Stock coils are still the best, they just don't last for 15 years, they're a perishable. If I had a choice between new OEM coils and Splitfires for the same price, I would go the OEM's.

u for real? whys that?

splitfires are known to be able to perform better, esp under higher stresses/hp.

[Hanaldo]

u for real? whys that?

splitfires are known to be able to perform better, esp under higher stresses/hp.

Who told you that, the seller?

Suggest you read up mate

http://www.skylinesaustralia.com/forums/topic/187108-jjr-coil-packs-vs-oem-vs-splitfire-vs-other/

http://www.skylinesaustralia.com/forums/topic/356895-so-i-have-a-set-of-splitfire-and-a-brand-new-oem-set/page__p__5708832__hl__splitfire__fromsearch__1#entry5708832