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7th Generation (1993-1997) Specific discussion of the 7th generation

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Old 11-17-2011, 03:18 PM   #1 (permalink)
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A friendly reminder to change your spark plugs

I finally got around to changing the spark plugs today and this is what I found:


Disgusting! Probably the original ones even.

Anyway it takes all of 30 minutes and 10 dollars so go change your spark plugs. I used NGK BKR5EYA by the way.
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Old 11-17-2011, 07:21 PM   #2 (permalink)
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Well they have typical wear and not many deposits so you dont ahve trouble with oil burning and have some decent fuel in your area, BUT where did the rust come from??

-SP
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Old 11-17-2011, 07:40 PM   #3 (permalink)
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Originally Posted by speedy25 View Post
Well they have typical wear and not many deposits so you dont ahve trouble with oil burning and have some decent fuel in your area, BUT where did the rust come from??

-SP
No clue. I live in Houston so maybe the humidity? It's weird that the threading is rusty but not the upper part.
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Old 11-17-2011, 07:52 PM   #4 (permalink)
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How many miles were on those plugs?
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Old 11-17-2011, 08:10 PM   #5 (permalink)
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How many miles were on those plugs?
The car has 142k, 1997 4AFE. I'm guessing these plugs came with the car. The only receipts I got from previous owners was stuff like oil and tires.
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Old 11-17-2011, 11:49 PM   #6 (permalink)
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Yeah, uh, that ought to improve your mileage just a smidge. That looks like a /gigantic/ gap.

For those folks out there inspired to change your plugs as a result of this, the quickest and greatest way I've found to get the plugs out and back in is a length of 3/8ths fuel hose. Fits PERFECTLY over the insulators.

Also, get yourself a gap gauge, a little packet of dielectric grease, and the gap specs from the manufacturer. The last parts store I asked gave me a figure that was a full .1" off.

And if your car runs like absolute crap after you change the plugs and you're sure all the simple things are taken care of (good connections to the plugs, properly gapped, didn't crush 'em, didn't drop the little cardboard tip protector down the hole into the combustion chamber), you probably broke your wires. I have had lousy luck with mine...even pulling straight up, gently, from the little knobby boot, I seem to wind up with broken wires every other plug change.
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Old 11-18-2011, 01:32 AM   #7 (permalink)
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Originally Posted by Piloter View Post
For those folks out there inspired to change your plugs as a result of this, the quickest and greatest way I've found to get the plugs out and back in is a length of 3/8ths fuel hose. Fits PERFECTLY over the insulators.
OR just use a proper spark plug socket which is extra long and has a rubber donut insert to grip and retain the top of the insulator.
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Old 04-26-2012, 11:13 PM   #8 (permalink)
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does anybody know what the longest a stock plug could last is
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Old 04-26-2012, 11:28 PM   #9 (permalink)
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Originally Posted by Piloter View Post
For those folks out there inspired to change your plugs as a result of this, the quickest and greatest way I've found to get the plugs out and back in is a length of 3/8ths fuel hose. Fits PERFECTLY over the insulators.





And if your car runs like absolute crap after you change the plugs and you're sure all the simple things are taken care of (good connections to the plugs, properly gapped, didn't crush 'em, didn't drop the little cardboard tip protector down the hole into the combustion chamber), you probably broke your wires. I have had lousy luck with mine...even pulling straight up, gently, from the little knobby boot, I seem to wind up with broken wires every other plug change.








for the fuel hose thing most spark plug sockets have the rubber boot in them for this reason, also the spark plug boot works just fine as well, but i'm sure the fuel line is a handy rig as well when all else fails or if preferred.



the plug wires on my 93 camry v6 have been pulled off about 10-15 times in the last week for all kinds of tests & maintenance & have held up fine all except one that happend to be fouling & rusted for some reason & they are the original wires with 230000 miles on them, i'm just saying.
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Old 04-27-2012, 06:02 AM   #10 (permalink)
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Originally Posted by wei View Post
I finally got around to changing the spark plugs today and this is what I found:


Disgusting! Probably the original ones even.

Anyway it takes all of 30 minutes and 10 dollars so go change your spark plugs. I used NGK BKR5EYA by the way.
We had some today at my work out of a jeep.
The electrode wore down to the ceramic, then the ceramic and the electrode were worn down more.

The guy came in complaining it was running like ass...
He never changed them and the Jeep was at 140k miles.
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