Akwai bututun tsotsa kusa da tace iska. Me ke faruwa?
Wannan bututu ne a cikin tsarin samun iska mai fashewa wanda ya sake jagorantar gas mai shayarwa ga haduwa mai yawa don haduwa. Injin na motar yana da tsarin crankcase ya tilastawa, kuma lokacin da injin yake gudana, wasu iskar gas ta shiga cikin crankcase ta hanyar zobe na Piston. Idan gas mai yawa ya shiga cikin crankce, matsin lamba na crargan crankce zai karu, wanda zai shafi piston toasa, amma kuma yana shafar hatimin aikin injin. Sabili da haka, yana da mahimmanci don cutar da waɗannan gas a cikin crankcas. Idan an fitar da waɗannan gas ɗin kai tsaye cikin yanayi, zai ƙazantar da muhalli, wanda shine dalilin da yasa injiniyoyin injiniyoyi sun kirkiri tsarin fasahar. Tsarin iska ya tilastawa tsarin iskar gas daga crankcase cikin hade da yawa don sake shigar da kujerar adawa. Hakanan akwai wani muhimmin sashi na tsarin fasahar crankce, wanda ake kira mai da mai gas. Partangare na gas yana shigar da gas mai shayarwa, kuma sashi shine tururi mai mai. Man da mai gas da gas shine raba gas mai shukar daga tururin mai, wanda zai iya guje wa ƙona turamar mai. Idan maimaitawa da mai sake gas ya karye, zai sa tururi mai mai don shiga cikin konewa, wanda zai haifar da ƙaruwa a cikin carbon a cikin ɗakin sarauta. Idan injin ya ƙone mai mai na dogon lokaci, yana iya haifar da lalacewar mai juyawa na catalytic ta hanya uku.
