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Spark Plugs


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#1 seveer unaek

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Posted 07 January 2005 - 03:36 AM

Do after market spark plugs make any difference to anthing?? Iv heard of these irridium things or whatever they are, but was just wondering what difference, if any they'll have on a 1.3 Yaris??

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#2 clarky

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Posted 07 January 2005 - 09:55 AM

Envy did mine with Iridium ones and I think it runs a bit smoother - better idleing etc ...

At the end of the day they'll need doing in a service at some point and they're not expensive so why not?

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#3 Ryan1985

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Posted 07 January 2005 - 11:43 PM

My big brother has noticed more mid-range torque but maybe he just thinks he is???

Anyway, daft if you don't, can't see it being detremental! :thumbsup:

#4 seveer unaek

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Posted 07 January 2005 - 11:54 PM

Might give it a go then... is it easy to change them or is a mechanics job?

#5 Chappers

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Posted 08 January 2005 - 12:15 AM

As long as youve got a removal tool..? and the correct plugs..

Easy :yes:

#6 knightrider

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Posted 08 January 2005 - 01:39 AM

ive got bosch super 4's in mine 20 quid an a doddle to do they come preset from the factory!

#7 Viper_7

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Posted 08 January 2005 - 03:48 PM

sorry if I'm stating the obvious...but it's not been mentioned.. you have to ensure the gaps are correct...can't just buy spark plugs off the shelf and stick em in.

Dead easy to change though.

If you want to go a step further..get some HT leads with gold plated ocnnectiond.

Vipes

#8 Dougs

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Posted 08 January 2005 - 04:38 PM

sorry if I'm stating the obvious...but it's not been mentioned.. you have to ensure the gaps are correct...can't just buy spark plugs off the shelf and stick em in.

Dead easy to change though.

If you want to go a step further..get some HT leads with gold plated ocnnectiond.

Vipes

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Thought most spark plugs came with the right size gap from the factory these days

#9 GT4 BOOSTER

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Posted 08 January 2005 - 04:43 PM

has never gapped a plug out of the box ever,if they look ok dont touch em , iridium plugs give a better spark at higher temps fact .

#10 Viper_7

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Posted 08 January 2005 - 06:38 PM

ermmm so every single spark plug for any car has the same gap does it? don't think so. They don't come vacuum sealed..they come in a little carboard box which have been banging about in other carboard boxes.

and if you can tell what the gap is of a spark plug by looking at it..well... even 1mm can make huges differences to the burn. To big a gap, and it will misfire...too small a gap and they carbonize easily. Both make your car idle badly and both reduce performance.

Vipes

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