spark plug concern*pic*
01-24-2012, 02:28 PM
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spark plug concern*pic* ok so i been hearing a slight tapping on a cold start but it goes away when warm, i also noticed the engine shakes. a bit, like its having a misfire, then again im catless, know its not from bottom end.. sounds like it was coming from cylinder 6, checked the valve springs all good, but when i pulled the spark plugs today for a compression test i notice a patch of carbon on the spark plugs 4,6, all the other ones where clean! look at the picture
01-24-2012, 06:25 PM
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ok so i been hearing a slight tapping on a cold start but it goes away when warm, i also noticed the engine shakes. a bit, like its having a misfire, then again im catless, know its not from bottom end.. sounds like it was coming from cylinder 6, checked the valve springs all good, but when i pulled the spark plugs today for a compression test i notice a patch of carbon on the spark plugs 4,6, all the other ones where clean! look at the picture
01-26-2012, 01:36 AM
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When I changed mine the first time they had this on them and i figured it was some sort of oil leak so I did a compression test and, like yours had good results. When I did headers the plugs I pulled had ~15k miles on them and a couple had this as well.
Long story short, Interested in what the cause is. I think I have those plugs as well. I'll dig some up and take a picture.
Long story short, Interested in what the cause is. I think I have those plugs as well. I'll dig some up and take a picture.
