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www.peugeot206cc.co.uk - peugeot 206cc owners club • View topic - Long life spark plugs
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Long life spark plugs

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Long life spark plugs

Postby Spitfire6 » Thu May 28, 2015 9:42 pm

Hi,
having realised that the Peugeot 206cc 2l 16v petrol car uses wasted spark technology I want the correct long life spark plug. I want to fit spark plugs and not have to change them until they begin to wear out.

I have fitted the Bosch plugs as recommended on here. Unless I periodically swap the plugs over they will not last as long as the correct long life plugs. Swapping plugs periodically, negates the reason for fitting long life plugs. :(

Has anybody fitted long life plugs that are designed for wasted spark ignition system like the NGK laser iridium/platinum plugs that will last the life of the engine?

If I had known what I know now, I would not have fitted the FR 78 NX plugs as their life will be reduced unless periodically removed and swapped over.

I hope the above is clear?

Cheers,
Iain.
Peugeot 206 CC 2L 16V 4cyl 2002. Mobil 1 FS 0W40 Oil. Lamps 80% LED.
Triumph GT6 CC 2L5 12V 6Cyl 1972. Mobil 1 FS 0W40 Oil. Lamps 96% LED.
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Re: Long life spark plugs

Postby tenpole » Fri May 29, 2015 7:02 am

Does this mean a spark plugs life is halved as it is sparking twice as much for the same work.
206cc 1.6 2002 Silver.
L200 2.4 Forlife (wifes)
CB 400/4 (garaged for 15 years)
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Re: Long life spark plugs

Postby GrandadMonkey » Fri May 29, 2015 10:20 am

Wasted spark technology has been around a long time now and, in contact breaker points based systems, it was often recommended to swap the spark plugs (between the two common cylinders to even out spark plug erosion) mid way between replacement intervals, . However, in our 1.6 I have only had to renew the spark plugs once in the 10 year life of the car. I don't think that is excessive. I changed them when running started to become jerky at 35mph in top gear. The new plugs cured that. The only set of spark plugs that I have bought for our car were obtained from our Peugeot main dealer so that I knew I was buying the manufacturer recommended items.
Ron
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(Previously owned a 2005 206CC 1.6 Allure Moonstone for 10 years)
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Re: Long life spark plugs

Postby Spitfire6 » Fri May 29, 2015 4:01 pm

Hi,
Every time a spark jumps a tiny tiny tiny very tiny part of the metal moves with the spark and is lost. One reason why the gap gets bigger over time.
One way to combat this is to have the centre electrode coated with a Noble metal like platinum or Iridium (Very dense), that will last much longer. I say the centre contact as this is where the spark jumps from in a conventional system.

But, with a wasted spark system, one of the pairs of plugs the spark will always jump from earth to centre. The earth electrode has no hard wearing Noble metal, so it will errode faster than normal, defeating the purpose of paying for an expensive metal. Additionally, about 25% higher voltage, is required for the spark to jump from earth to centre.

You can buy plugs with the noble metal on both centre and earth elecrodes and they will last much longer. NGK Laser Iridium or Laser Platnum are ones I am aware of. These types of plugs would be ideal for a wasted spark system if changing plugs are a chore. But they are not cheap.

I am aware of Ford fitting Two different plugs to at least one of their models with wasted spark sytems. The normal firing plugs had a nobel metal on the centre electrode and the wrong firing plugs had noble metal on the earth electrode; It saved Ford a lot of money form not buying thousands of plugs with Noble metals on both electrodes. The plugs have different part numbers.

I have looked at plugs desigened for long life on a wasted spark sytem (Double Noble type) and as my car is already old and will proberly not be about in anouther ten years, I am better spending my money else where! LOL.

Now, when I think about it, the plugs are not as easy to change as on a Spitfire for example or as hard to change as on some excotic cars, I will stick with the FR78NX plugs and check the gaps in a years time and then swap 1 with 4 and 2 with 3 to even out the wear that will be present.

Cheers,
Iain.

All my information was found via Google. A lot from NGK white papers.
Peugeot 206 CC 2L 16V 4cyl 2002. Mobil 1 FS 0W40 Oil. Lamps 80% LED.
Triumph GT6 CC 2L5 12V 6Cyl 1972. Mobil 1 FS 0W40 Oil. Lamps 96% LED.
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Re: Long life spark plugs

Postby tenpole » Fri May 29, 2015 6:33 pm

Thank you Grandad and Spitfire for the posts which were interesting. Why have a wasted spark in the first place? I thought the electronic ignition was an advancement in sparking technology so it fires at the correct time.

As for getting to the spark plugs I have not tried it yet.
206cc 1.6 2002 Silver.
L200 2.4 Forlife (wifes)
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Re: Long life spark plugs

Postby gazza82 » Fri May 29, 2015 6:45 pm

Family Fleet: ex-Cayman Green 206 CC 2.0 LE, Indigo Blue 206 1.4 HDi Hatchback, Alfa Romeo MiTo, Renault Clio II 1.5dCi
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Re: Long life spark plugs

Postby Spitfire6 » Fri May 29, 2015 7:32 pm

[quote="tenpole"].......I thought the electronic ignition was an advancement in sparking technology so it fires at the correct time.
quote]

I guess the injectors 1+4 and 2+3 are also fired in pairs.
Why? I would say that the main processor CPU does not have the processing power to do 2 x 4 things simultaneously. Doing 2 x 2 things simultaneously is easier.

I would also guess more modern cars are full sequential in firing and fuelling to comply with tougher emission control, something the 206 does not.

Would your 206cc 2L have more power with full sequential? Probably, but not noticeable.
Would your emissions at idle be better? yes.

Is it worth the x000's quid to fit a full sequential engine management system to a batch fired 206? No way..
Cheaper and better to buy a more modern car.

If the Super 4's have no discernible wear after 20K, then mine will get a look at after 2 years then and swapped over.

Cheers and thanks,
Iain.
Peugeot 206 CC 2L 16V 4cyl 2002. Mobil 1 FS 0W40 Oil. Lamps 80% LED.
Triumph GT6 CC 2L5 12V 6Cyl 1972. Mobil 1 FS 0W40 Oil. Lamps 96% LED.
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Re: Long life spark plugs

Postby gazza82 » Sat May 30, 2015 12:20 am

There are coilpack/plug combinations that are known to be a problem on the Pug. I'll need to run some searcbes but I think NGKs are involved. I put Bosch pkugs in knowing these worked wuth most coilpacks too.
Family Fleet: ex-Cayman Green 206 CC 2.0 LE, Indigo Blue 206 1.4 HDi Hatchback, Alfa Romeo MiTo, Renault Clio II 1.5dCi
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Re: Long life spark plugs

Postby Spitfire6 » Sat May 30, 2015 12:25 am

I am also running Bosch Super 4's FR78NX as took advice from here.
Cheers,
Iain.
Peugeot 206 CC 2L 16V 4cyl 2002. Mobil 1 FS 0W40 Oil. Lamps 80% LED.
Triumph GT6 CC 2L5 12V 6Cyl 1972. Mobil 1 FS 0W40 Oil. Lamps 96% LED.
G6SBH.
S7 Engineer.
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Re: Long life spark plugs

Postby gazza82 » Sat May 30, 2015 5:38 pm

Good choice. Should be good for a few years.
Family Fleet: ex-Cayman Green 206 CC 2.0 LE, Indigo Blue 206 1.4 HDi Hatchback, Alfa Romeo MiTo, Renault Clio II 1.5dCi
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Re: Long life spark plugs

Postby tenpole » Sat May 30, 2015 8:24 pm

£14.49 free delivery uk on ebay
206cc 1.6 2002 Silver.
L200 2.4 Forlife (wifes)
CB 400/4 (garaged for 15 years)
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Re: Long life spark plugs

Postby Spitfire6 » Sat May 30, 2015 8:26 pm

Peugeot 206 CC 2L 16V 4cyl 2002. Mobil 1 FS 0W40 Oil. Lamps 80% LED.
Triumph GT6 CC 2L5 12V 6Cyl 1972. Mobil 1 FS 0W40 Oil. Lamps 96% LED.
G6SBH.
S7 Engineer.
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Re: Long life spark plugs

Postby tenpole » Sat May 30, 2015 8:28 pm

206cc 1.6 2002 Silver.
L200 2.4 Forlife (wifes)
CB 400/4 (garaged for 15 years)
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Re: Long life spark plugs

Postby Spitfire6 » Sat May 30, 2015 8:32 pm

Ok,
I thought you meant for a double platinum plug, because that's how much they are each. LOL.

Cheers,
Iain,
Peugeot 206 CC 2L 16V 4cyl 2002. Mobil 1 FS 0W40 Oil. Lamps 80% LED.
Triumph GT6 CC 2L5 12V 6Cyl 1972. Mobil 1 FS 0W40 Oil. Lamps 96% LED.
G6SBH.
S7 Engineer.
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Re: Long life spark plugs

Postby hawnet » Sun May 31, 2015 9:11 am

I wonder what the difference is with the OE and the bosch super 4s
2005, 206cc, silver, allure.
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