What are the typical replacement intervals for different types of spark plugs?

... carbon fouled, but the other plugs were normal (according to my plug chart). What could be causing plug #1 to carbon foul? -- bad plug? incorrectly set ... Jun 25, 2013 ... Carbon fouling occurs when the spark plug firing end does not reach the self-cleaning temperature of approximately 450°C (842°F). Carbon ... Oct 24, 2015 ... Pulling the plugs, all four plugs are identically and evenly coated with a dry dusty heavy black carbon that cleans easily with a wire brush. I ... A poorly performing fuel pump can cause spark plugs to foul. The plug will have a dusty layer of black carbon deposits. Jan 31, 2020 ... Gentlemen, I have a sooty, carbon-fouled spark plug problem that I ... carbon building up on the exhaust valves causing them to leak. It only took one change of spark plugs about 30 hours ago. Some ... A "weakness" in the ignition system will cause cause either a comeplete shut ... Jan 9, 2006 ... You could end up with a large amount of carbon ... improper jetting, wrong plug, dirty air filter, low compression, poor fuel, weak spark. May 12, 2006 ... ... carbon, fuel, oil or other deposits; Will cause spark to leach to metal shell...no spark across plug gap will cause a misfire; Wet-fouled ... Jun 11, 2015 ... ... spark plugs to use to avoid fouling? Back to Top. Direct Link ... So hotter plugs and carbon deposits could cause you pre-ignition and ping. Jul 14, 2021 ... Common types of fouling include lead, carbon, silica, loose debris, and oil. Another common cause of spark plug failure is a cracked ceramic ...