Kerry
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Registered: 5th Oct 01
Location: Norwich
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the electrode thingy on end of a spark plug break off
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Colin.S
Member
Registered: 19th Oct 02
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Dunno but has anyone broke the white stuff off a spark plug & flicked it at a glass window?? I was told about it when i worked in a scrap yard so i had a go, scared the life out of me.
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Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
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yes it breaks it silently
i tried it at school at a teachers car
when my mum asked me why i did it i said i felt like it so she squirted tomatoe sauce in my hair, she looked at me and said "i felt like it"
god my mum rocks
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MikeH
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Registered: 3rd Apr 03
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You serious? Never heard the like in my life!
How hard do youhave to flick it?
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MikeH
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Registered: 3rd Apr 03
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In answer to your question:
Fault: The electrodewill break off due to pre ignition
Check: for correct heat range and as for 'overheating'
Thats from the back page of the haynes manual.
If your talking about the white stuff breaking off, thats caused by detonation or the wrong gap setting.
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ajscorsa
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Registered: 30th Apr 02
Location: Perceton, North Ayrshire
User status: Offline
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what is the white stuff that breaks the window??
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Kerry
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Registered: 5th Oct 01
Location: Norwich
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its not a turbo though its a 2.0 williams engine thats in the megane coupe
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Kerry
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Registered: 5th Oct 01
Location: Norwich
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2nd set in 2 months........std engine......recomendded plugs from renault
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Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
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i have no idea although we did work out it was only meant to have superunleaded only in and was bein run on just unleaded. would this of been the problem?
how u find out if its fuellin ok?
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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that could be it, i had pre igniton in my corsa and this happended
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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although if ya using a lower octane fuel than you should shurely it would ignite later rather than sooner!!! I dont know really just trying to help
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Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
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quote: Originally posted by Adam Kindness
get it's fueling checked on a RR....
yes ive told him to bring it to our RR day in november but i think it may of been the fact he used unleaded in stead of super unleaded
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Kerry
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Registered: 5th Oct 01
Location: Norwich
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god knows then just thought id ask if there was a common reason to y this may happen
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MikeH
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Registered: 3rd Apr 03
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Right, i think the standard unleaded is definately the problem!
Higher ocatne fuel like 98 ron has aditives in it to STOP it combusting at lower pressures. If you have an engine with a fairly high compression ratio or even a turbo and you put lower octane fuelin then yes it will pre-ignite. It will self combust with the pressure before the spark plug does it.
Just get a few tank fulls of optimax through the car to clear the old stuff out... should be ok after that.
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Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
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k
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Tom
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Registered: 3rd Apr 02
Location: Wirral, Merseyside
User status: Offline
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Another interesting thread...wow
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Kerry
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Registered: 5th Oct 01
Location: Norwich
User status: Offline
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