Pali chubu chophatikizira pafupi ndi chosefera. Chikuchitika ndi chiani?
Ichi ndi chubu mu dongosolo lamkaka yamkaka yomwe imawongolera mpweya wamafuta kupita kuzomwe zimachitika. Injini yagalimoto ili ndi dongosolo lokhazikika la mpweya wabwino, ndipo injini ikayamba, mpweya wina umalowa mu cronkcase kudzera mphete ya piston. Ngati mafuta okwera kwambiri amalowa crankcase, kukakamizidwa kwa crankcase kumakula, komwe kungakhudze pisitoni pansi, komanso zimakhudzanso magwiridwe antchito a injini. Chifukwa chake, ndikofunikira kuthira mpweya uwu mu crankcase. Ngati mpweyawu udatulutsidwa mwachindunji mumlengalenga, chidzadetsa chilengedwe, chomwe ndi chifukwa chakuti mainjiniya adapanga njira yolimbikitsira mpweya wabwino. Dongosolo la crankcasi lokhazikika limalimbitsa mpweya kuchokera pa crankcase kukhala chakudya chokwanira kuti ithe kulowa mchipinda chocheka kachiwiri. Palinso gawo lofunikira pa dongosolo lamkaka yamkati, lomwe limatchedwa kuti mafuta ndi gasi. Gawo la gasi kulowa crankcase ndi mpweya wamafuta, ndipo gawo limakhala ndi mpweya wamafuta. Olekanitsa mafuta ndi gasi ndikulekanitsa mpweya wamafuta kuchokera ku Steary Steary, yomwe ingapewe zinthu zoyaka mafuta. Ngati olekanitsa mafuta ndi gasi amathyoledwa, imapangitsa kuti mafuta am'madzi alowe mu cylinder kutenga nawo mbali pakuphatikiza mafuta, ndipo adzayambitsanso kuchuluka kwa kaboni m'chipinda choyaka. Ngati injini imayaka mafuta kwa nthawi yayitali, zitha kuwonongeka kwa njira yosinthira njira zitatu.
