1. Motar tana da wuta mai ƙarfi, amma lokacin farawa yana da tsayi, kuma motar tana iya gudu;

2. A lokacin farawa, za a juya crankshaft, kuma za a mayar da ma'auni na ci gaba;

3. Gudun gudu na mota ba shi da kwanciyar hankali kuma girgizar tana da tsanani, wanda yayi kama da gazawar motar da ba ta da Silinda;

4. Haɗawar motar ba ta isa ba, motar ba za ta iya gudu ba, kuma gudun ya wuce 2500 rpm;

5. Abin hawa yana da yawan man fetur da ake amfani da shi, fitar da hayaki ya wuce misali, kuma bututun da ke fitar da hayaki zai haifar da baƙar fata.

Kasawar gama gari na camshafts sun haɗa da lalacewa mara kyau, ƙarar hayaniya, da karaya. Alamun lalacewa da tsagewar al'ada sau da yawa suna bayyana kafin amo da karaya mara kyau su faru.

1. Camshaft kusan kusan ƙarshen tsarin lubrication na injin, don haka yanayin lubrication ba shi da kyakkyawan fata. Idan matsi na man famfo na man bai isa ba saboda dadewa da aka yi amfani da shi, ko kuma an toshe hanyar mai mai mai ta yadda mai mai ba zai iya isa ga camshaft ba, ko kuma matsewar magudanar hular da ke ɗaure bolts ɗin ya yi girma da yawa. man mai mai ba zai iya shiga cikin camshaft ba, kuma yana haifar da lalacewa mara kyau na camshaft.

2. Rashin lalacewa na camshaft ɗin da ba a saba ba zai haifar da rata tsakanin camshaft da wurin zama ya karu, kuma ƙaurawar axial zai faru lokacin da camshaft ya motsa, yana haifar da hayaniya mara kyau. Rashin lalacewa kuma zai haifar da ratar da ke tsakanin cam ɗin tuƙi da na'ura mai ɗaukar hoto ya ƙaru, kuma cam ɗin zai yi karo da na'ura mai ɗaukar hoto idan an haɗa shi, yana haifar da hayaniya mara kyau.

3. Mummunan gazawa kamar karyewar camshaft wani lokaci yana faruwa. Dalilai na yau da kullun sun haɗa da fashe-fashe na hydraulic tappets ko lalacewa mai tsanani, matsanancin maɗaukaki mara kyau, ƙarancin ingancin camshaft, da fashewar camshaft na lokaci.

4. A wasu lokuta, rashin aikin na’urar yana faruwa ne sakamakon wasu dalilai na mutum, musamman idan an gyara injin, ba a tsattsage camshaft da harhada shi yadda ya kamata. Misali, lokacin cire murfin ɗaukar hoto, yi amfani da guduma don buga shi ƙasa ko buga shi da sukudireba, ko shigar da murfin ɗaukar hoto a wuri mara kyau, yana haifar da murfin ɗaukar nauyi bai dace da wurin zama ba, ko ƙarar karfin juyi maƙallan ɗaukar murfin ɗaukar hoto yana da girma da yawa. Lokacin shigar da murfin ɗaukar hoto, kula da kibiyoyi masu jagora da lambobin matsayi a saman murfin ɗaukar hoto, kuma yi amfani da matsi mai ƙarfi don ƙara ƙarar murfin ɗaukar hoto daidai da ƙayyadaddun juzu'i.