02-21-2005, 07:25 PM | #1 |
Mugwump
Join Date: Oct 2003
Carmudgeonly Ride: E46 330i, Chevy Colorado, Tesla Model 3
Location: NY
Posts: 17,475
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Diagnose my spark plugs
Experts, any thoughts on my spark plugs? They're from my E30. Supposidly they were changed 1 year ago.
4 of the plugs look the most like the bottom attachment: pretty good, but with a slight dusty gray coating. But two of them look a bit more like the first two pics, with a bit thicker and uneven layering. According to the haynes manual, it looks like the most like the picture that has the following description: Carbon Deposits: Dry sooty deposits indicate a rich mixture. Check for a clogged air cleaner, high float level, sticky choke, and word ignition points. Use a spark plug with a longer core nose for greater anti-fouling protection. Does that sound right? Is this a big deal and I should be concerned, or fairly normal on a 15 year old car? I can just get new plugs and call it a day. Thanks folks. |
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