A cikin injin yana gudana, tare da stethoscope akan harsashi na famfo, yayin canza saurin injin, ƙarancin ƙarancin famfo ko ƙarancin mai, zaku iya jin yashi, yashi, hayaniya yashi; sautin karo kadan ne.

Pump mahaukaci sauti ne kullum famfo shaft hali lalacewa, sako-sako da ko rashin mai, famfo shaft retaining zobe ba a shigar ko ba a shigar, hali channeling, impeller baya da ruwa famfo murfin rub da sakamakon jan hankali da fan impeller girgiza sound.Push da fan. ruwa da hannu kuma duba mashin famfo.Idan za ku iya jin ƙarancin axial da radial mai yawa, an tabbatar da cewa ɗaukar nauyin ya sawa sosai ko kuma ya kamata a cire shi don kiyayewa.

A cikin motar motar Silinda block, akwai mahara don sanyaya ruwa wurare dabam dabam tashar, da kuma sanya a gaban mota radiators (wanda aka fi sani da ruwa tank) ta hanyar ruwa bututu da aka haɗa zuwa samar da wani babban ruwa sake zagayowar tsarin, kanti a kan engine, sanye take. tare da famfo na ruwa, wanda fan bel ke motsa shi, a cikin injin Silinda toshe fam ɗin zafi na ruwa, famfo cikin sanyi.

Kusa da famfo na ruwa da thermostat, sanyi (mota), lokacin da motar ta fara ba buɗewa ba, sanya ruwan sanyaya ba tare da tankin ruwa ba, kawai a cikin zagayowar injin (wanda aka fi sani da ƙaramin zagayowar), motsawar motsi sama da zafin jiki na 95 digiri, yana buɗewa, ana zuba ruwan zafi a cikin injin tanki a ciki, lokacin da motar da ke kan iska mai sanyi ta busa tankin ruwa, ana iya ɗaukar zafi.