About 3 weeks ago one of the Denso Spark Plugs fitted in my Toyota Carina 2 3 S-FE engine exploded. The centre porcelain core and centre electrode parted company from the screwed part of the plug which remained in place in the cylinder head. I have e-mailed Denso Europe and Japan but have not had the courtesy of a reply. The plug had only been in place 6 months. Any ideas or similar experiences?
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It happens, occasionally. Probably will never happen again.
But I can affirm it's surprising when it blows past your thigh!
If you have only one pot, carry a spare.
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took a chunk out of my boot on a Dominator SS.
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Mate of mine's brother had a knackered plug fire clean through the bonnet of his recently polished Polo - Not a happy man!
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It's usually the thread in the head that strips, letting the plug fire out, rather than the porcelain exploding, in my experience. Still makes you jump though.
Mike
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If you accidently drop a spark plug onto something hard,a garage floor being an example,scrapping it will avoid you having this experience.
I have some old,very old,dismantle-able spark plugs here,they are for vintage boat engines.They will withstand nuclear attack.
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