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Old 04-30-2003, 01:34 PM   #1
TimStevens
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Default Do factory spark-plugs come pre-gapped?

Anyone know? I did some searching and see that the factory recommended gap is 0.028in - 0.031in, but was hoping they'd come that way already, so that I can save myself a trip to the parts store to pick up a $1 gapper

Thanks,

-tim
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Old 04-30-2003, 04:57 PM   #2
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If you baught them from a dealer, then yes. But it's good to be extra sure, just go buy the gaper and test it.
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Old 04-30-2003, 05:18 PM   #3
TimStevens
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Thanks, I guess I'll drag myself all the way down to the parts store. It's not that it's far away, it's that I'm sure if I go in there for a $1 gapper I'll walk out with $100 in tools

-tim
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Old 05-01-2003, 12:48 AM   #4
Bottom Feeder
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Isn't the plug gap supposed to be between .040 and .044?
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Old 05-01-2003, 08:42 AM   #5
TimStevens
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Maybe for an RS, but from what I've seen on here for the WRX it's .028-.031... but if someone feels like backing that up that would be appreciated
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Old 05-01-2003, 10:16 AM   #6
BlueTDimly
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Tim -

Plug gap is in the specs section of your owner's manual. Definitely double-check.

My Forester is 0.039-0.041 or somewhere around there -- when I bought the NGKs at Pep Boys they were gapped to 0.040 already (but I measured each one just to be sure).

Peter
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Old 05-01-2003, 10:18 AM   #7
TimStevens
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will do
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Old 05-01-2003, 10:34 AM   #8
philwang66
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Believe it or not, the plug gaps specs are NOT listed in the Impreza owners manual. The recommended NGK plugs come pre-gapped at .030, but it certainly doesn't hurt to check it with a gapper.
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Old 05-01-2003, 01:58 PM   #9
North Ursalia
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Never, ever, ever assume the spark plug gap is correct right from the box. Gap every plug, every time .


Brian

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Old 05-02-2003, 08:41 AM   #10
lakepop
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Yikes...buy a gapper.....should be part of any DIYers tool box!

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