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Old 05-10-2012, 11:03 AM   #1
mark986
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K04 Spark Plugs 20K

I hate to make another thread on the dreaded "spark plugs" but I thought I'd share what mine looked like after 20K to allow people gauge when there's should be done (early vs later).

Forgot to upload these back when they were changed. You can guess which are the old. I measured the gap on the old ones and were a TIGHT fit at 0.032". In reality, they are probably just a hair smaller. The new ones were a perfect fit at 0.028".



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Old 05-10-2012, 11:05 AM   #2
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Which plugs did you end up using? First time I've seen an NGK branded ceramic insulator like that.

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Old 05-10-2012, 12:18 PM   #3
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I use the PFR7S8EG gapped at 0.028". Double platinum plugs.
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Old 05-22-2012, 03:06 PM   #4
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Nice. Any difference at 0.028 gapped?
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Old 05-22-2012, 03:13 PM   #5
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Plugs open up over time...Not unusual. I like to replace on turbo cars at 20K, do a re-gap at 10K. This will keep your coil paks happy too..
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Old 05-22-2012, 03:30 PM   #6
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Nice. Any difference at 0.028 gapped?
I would say there was a slight difference in response maybe. I never really had any issues like misfires or anything so this may be psychological.
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Old 05-22-2012, 07:22 PM   #7
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Kind of OT but I've never had a car where I did more than change the oil. How labor intensive is it to change the plugs on these engines?

What tools are needed?
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Old 05-22-2012, 07:44 PM   #8
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those old plugs are a perfect tan. probably didnt even need to be changed.
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Old 05-22-2012, 09:17 PM   #9
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I know they probably didn't need to be but half the stuff people change don't need to be changed as early as they do. Plus, had them laying around and wanted to give them a go with my K04.
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Old 05-22-2012, 09:18 PM   #10
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I know they probably didn't need to be but half the stuff people change don't need to be changed as early as they do. Plus, had them laying around and wanted to give them a go with my K04.
hell ill prob change mine at 10k miles.. oh wait.. i have like 12k miles on it now.. better order some.
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Old 05-22-2012, 09:19 PM   #11
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Kind of OT but I've never had a car where I did more than change the oil. How labor intensive is it to change the plugs on these engines?

What tools are needed?
Not labor intensive at all. Grambles has a DIY on here as well. Only tool you may not have is a torque wrench. But not everyone uses one.
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Old 05-22-2012, 09:20 PM   #12
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hell ill prob change mine at 10k miles.. oh wait.. i have like 12k miles on it now.. better order some.
Might as well throw a new downpipe on there while you're at it =) oh behave Plac lol.
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Old 05-23-2012, 08:04 AM   #13
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Regapped plugs to 0.028 response is better now! Thanks
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Old 05-23-2012, 08:26 AM   #14
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Regapped plugs to 0.028 response is better now! Thanks
think ill do this today just for kicks. ill check my plug gaps. suppose ill get pics of their condition at 12k miles also..
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Old 05-23-2012, 12:15 PM   #15
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After 40k miles from new, today changed the original Bosch factory fit plugs for Denso Platimum.

Old ones looked ok and gaps were around 0.030 to 0.031".

Perhaps they did not need changing, but I'd hate for them to seize up in the threaded hole as I've had on some diesel car glow plugs..
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Old 05-23-2012, 12:59 PM   #16
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It's something inexpensive and can save you hassles down the road. Especially if youre tuned (in my opinion). I didn't change the fiances spark plugs in her scion till 70k. Probably just a little darker than my old ones but definitely a lot more erosion.

I'll admit, changing the coil packs may have been overkill at 20k but for $65 can't complain.
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Old 05-23-2012, 03:13 PM   #17
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Isn't 60k miles VW's recommended service interval?

Goes to show that it may pay to mind the gap somewhere around halfway there.
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Old 08-02-2012, 09:33 AM   #18
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Kind of OT but I've never had a car where I did more than change the oil. How labor intensive is it to change the plugs on these engines?

What tools are needed?
Very simple.
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Old 08-02-2012, 09:53 AM   #19
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what exactly makes the plugs and coil packs go bad?
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Dat '11 A3 Quattro DSG APR K04 build thread, doe.
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Old 08-02-2012, 10:40 AM   #20
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Quote:
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those old plugs are a perfect tan. probably didnt even need to be changed.
+1 Old plugs are still fine, I'd pop em back and check in 10k miles again.
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