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Join Date: Jan 2019
Posts: 9 Thanks: 0 Trader Rating: 0 ![]() | VXU22 spark-plug gap for a 1.2 hey again - I've just read an excellent thread on 1 million different options on spark-plugs and mpg and power and longevity and.... But I am slightly puzzled. For a 1.2 Lounge MY12, what gap should be set for the Denso Iridium Tough VXU22 please? 0.8 1.0 other ![]() Thanks
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Join Date: Dec 2014 Location: Orpington, Kent UK
Posts: 2,294 Thanks: 145 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 I was told some time ago that new plugs come with the correct gap and don’t need adjusting.
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Join Date: Jan 2019
Posts: 9 Thanks: 0 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 Thanks!....but that would be for 'standard' plugs for a 'standard' application. I think as the 'upgrade' VXU22 is applicable for many different engines, it can't be gapped perfectly for all of them.
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Join Date: Feb 2004 Location: Faringdon, Oxfordshire UK
Posts: 5,732 Thanks: 456 Trader Rating: 1 ![]() | Re: VXU22 spark-plug gap for a 1.2 On any plug, never close the gap below its standard setting. It leads to a weaker spark, as the voltage to jump the smaller gap is less, so it jumps before it reaches max power.
__________________ 13 years motor trade, 16 years motor industry. 14 years Driving Instructor & 7 years Fleet Trainer Panda Alessi |
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Moderator Join Date: Mar 2010 Location: Dorset
Posts: 8,284 Thanks: 872 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 If you've ever checked the gap on an iridium plug with a ball type tool, dropped one, or even knocked the tip, put the plug in the bin now. The tip is both exceptionally hard and exceptionally brittle; if it breaks inside the engine, it'll likely do considerable damage. VXU22's come withe the gap preset to 0.8mm, and that'll work just fine in the 1.2. Being slightly smaller than the 1.0mm gap of the standard plugs, it'll put less stress on the coil pack, too - which is a good thing. Iridiums gapped to 0.8 work very well in the 1.2 FIRE and are a useful upgrade for this engine. Last edited by jrkitching; 3 Weeks Ago at 06:41. |
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Join Date: Jan 2019
Posts: 9 Thanks: 0 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 ![]() ![]() I also always check that the gap hasn't been altered by a bump in storage or transit pre-purchase. Looks like I can put my feeler gauge back in the bottom drawer.
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Join Date: Mar 2008 Location: The Welsh Riviera
Posts: 23,677 Thanks: 845 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 There’s a cardboard tube around the spark plugs usually. You’ll be able to see if it’s had a knock.
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Join Date: Jan 2019
Posts: 9 Thanks: 0 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 sure - and these ones (unfortunately) have a plastic tube. But I would always check the gap anyway. Why wouldn't you? As pointed out, if the gap is wrong there is a chance for proper engine damage. If you have enough tools and wherewithall to change the plugs, shirley you can check a gap - where does responsibility start? or end? ![]()
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Moderator Join Date: Mar 2010 Location: Dorset
Posts: 8,284 Thanks: 872 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 Because the plug manufacturer specifically recommends that you do not. The central electrode is fragile and easily damaged if subjected to any pressure. Best case, it breaks off and you ruin the plug. Worst case, it cracks and breaks later inside the cylinder and you ruin the engine. Modern cars have evolved. If you try maintaining one the same way you maintained your Morris Minor, things aren't likely to end well. |
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Join Date: Jan 2019
Posts: 9 Thanks: 0 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 errr yes that's a recommendation and a ridiculous cop out. Why am I not allowed to take responsibility for my own actions? Why are you making judgements on my levels of expertise? Shame you take that attitude. A moderator should be moderate. By all means recommend and advise - I'm afraid your attitude of 'do as I say' isn't one that I think is appropriate. But thanks for the advice anyway. I'll try not to rock your boat any further. ps never had a Morris - my list would bore you I'm sure. Other than maybe the Strada 130TC Abarth.
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Last edited by orangecurry; 3 Weeks Ago at 22:14. | ||
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Join Date: Mar 2005 Location: Under The Hill
Posts: 1,141 Thanks: 24 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 If you come here asking for advice then choose not to take it, why did you bother asking in the first place ?
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Join Date: Dec 2014 Location: Orpington, Kent UK
Posts: 2,294 Thanks: 145 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 errr yes that's a recommendation and a ridiculous cop out. Why am I not allowed to take responsibility for my own actions? Why are you making judgements on my levels of expertise? Shame you take that attitude. A moderator should be moderate. By all means recommend and advise - I'm afraid your attitude of 'do as I say' isn't one that I think is appropriate. But thanks for the advice anyway. I'll try not to rock your boat any further. ps never had a Morris - my list would bore you I'm sure. Other than maybe the Strada 130TC Abarth. Crack on then!
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It's always more involved Join Date: Feb 2016 Location: Tynemouth
Posts: 2,401 Thanks: 85 Trader Rating: 0 ![]() | Re: VXU22 spark-plug gap for a 1.2 If you don't know never to "gap" Iridium plugs, then should one be replacing them in the first place? But for those who might be uncertain, they come ready to install.
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