Spark plug gapping - Honda Civic Forum

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Spark plug gapping

Old 09-05-2006
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Spark plug gapping

hey everyone, i know this is a stupid question but can anyone tell me what the manufacturer spark plug gapping is??? i know this has probably been asked a million times, and i'd look at my owners manual but i bought the car used and there is now owners manual. its for a 2001 Civic LX (sedan non v-tec). any replies would be appreciated

-harvey
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Old 09-05-2006
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look it up on sparkplugs.com it will tell you in the list.
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Old 09-05-2006
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I want to say its either .040 or .044... but the car uses platinums and they're usually too brittle to gap, and they're made to work out of the box if you buy the right plug.
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Old 09-05-2006
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I actually called a Honda dealer about this a few weeks ago. They say .7 to .8 mm. I don't remember what the figure was in fractions of an inch. I've looked this up on the forum and have found many different opinions on whether plugs need to be gapped at all. According to Autozone, Honda recommends platinum plugs. The consensus on this forum is that Bosch, and other cheap platinum plugs don't count, cause just the tip is platinum, with a copper core, instead of the platinum tip and core in OEM plugs. This is all other people's opinions that i've read on here. My own input is that I bought Denso Iridiums, ($50 for the 4 plugs) and didnt' gap them. Everything seems to be running fine, though I didn't notice any increase in power. I didn't really expect to, tho. Everyone i've talked to says do not attempt to gap iridium plugs, as the electrode is too thin, and will bend or break. Hope this helps.
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Old 09-06-2006
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.044"
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Old 09-07-2006
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thanks for all the replies guys very helpful!!!
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Old 09-08-2006
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On my 02 ex it's on the sticker on the bottom of the hood. On mine it says 1.0-1.1mm Which equals(roughly).040-.044 inches.

Hope that helped.
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Old 09-08-2006
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Yea I got some denso awhile back also and just put them right in...arent they usually pre-gapped?
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Old 09-08-2006
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ya the iridium tips would just break if you tried to gap it.
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