How does the positive crankcase ventilation (PCV) system remove harmful vapors from the crankcase?

Jun 5, 2024 ... Since all four plugs are fouled, I would lean towards oil. You may have lost a seal on the turbo, or the new PCV diaphragm may be faulty. Jun 6, 2011 ... Usually fouling is caused by too rich a mixture or weak spark, afaik. I think getting the right adjustments on the carbs, ensuring the proper amount of spark. 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. Jan 15, 2023 ... What might've caused this engine to be carbon fouled so badly? It ... spark plugs afterwards. Both can be significantly impacted after ... Apr 1, 2022 ... Carbon fouling on a spark plug is caused by a problem with the fuel that you use. Often, we describe it as a fuel mixture that's too rich, which ... Aug 20, 2006 ... What would cause the front cylinder spark plugs to foul heavily with carbon on my 2002 VTX 1800C? The rear cylinder plugs were ok. Aug 4, 2010 ... ... abnormally rich mixture, which tends to cause the sooting and fouling of the front spark plugs with carbon. As soon as enough soot from too ... Nov 30, 2003 ... ... cause problems unless the spark plugs begin to foul out. In any event you would notice the misfire and lack of power from fouled plugs. As ... Dec 14, 2022 ... I would download ISTA and get the codes that causing the DTM. Post them here. Did you torque the spark plugs when you installed new ones? Or did ... Aug 15, 2006 ... ... causing carbon fouling is your air filter clean and free of oil? If its in bad shape it could be restricting air flow enought to leave your ...