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? for old-timers: spark plug gasket orientation

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Old 05-01-2001, 02:03 AM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
? for old-timers: spark plug gasket orientation

Well, I qualify for the "old" part, but don't have an answer for this one: On spark plugs that use a metal gasket, does the "small" side go towards the head or the plug? I've never seen any info on this, even in shop manuals. Maybe it doesn't make any difference.

Just wondering.

You young bucks probably didn't even know spark plugs ever came with gaskets.

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Old 05-01-2001, 07:53 AM
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Small side towards the head is how they come in the box.
Old 05-01-2001, 08:49 AM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The last two sets I got had the gaskets loose in the box (wire terminal was loose in the last set).

Small side to head is the way I installed them this last time. I don't recall having leakage from them anytime, just had me wondering as I installed them.
Old 05-01-2001, 08:32 PM
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small side to the head is how i've always done it too. that's how they come when on the plugs.

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Old 05-01-2001, 10:27 PM
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Now I feel old. I remember those things from when I was just a wee lil' runt.

Another vote for the small side down.
Old 05-01-2001, 10:35 PM
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57,

Let's make it unanimous - smaller diameter side toward the head, and don't forget the Never-Seez! (You KNEW I'd throw that one in there.)

And they WILL seal more than once, contrary to what some people might believe.

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Old 05-01-2001, 10:46 PM
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They dont seal more than once????

Tell that to my 69 Pursang....
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