Ukulungiswa kwe-valve clearance
Ezimotweni eziningi namuhla, ungakhohlwa ngemisebenzi efana nokulungisa i-valve tightening. Iningi, kodwa hhayi bonke.
Kukhona futhi imiklamo edinga ukuhlolwa kwemvume ngezikhathi ezithile.
Phakathi kwezimoto ezineminyaka eminingana nangaphezulu kuneshumi leminyaka, cishe zonke izinjini zidinga ukulungiswa kwe-valve.
I-valve clearance iyadingeka ekusebenzeni kahle kwenjini, ngoba ngenxa yokwanda okushisayo kwezinto zokwakha kanye nokugqoka okuhlelekile kokuhlanganayo. 
izakhi, kuyadingeka ukuqinisekisa ukusebenza kahle kwenjini, i.e. ama-valve avaliwe. Nokho, leli gebe kufanele libe nenani elifanele. Okuningi noma okuncane kakhulu kuthinta kabi impilo ende yenjini nokusebenza okufanele. Izikhala ezinkulu zidala umsindo owengeziwe wensimbi kanye nokuguga okusheshayo kuma-valve, ama-camshaft lobes nezingalo ze-rocker. Ngakolunye uhlangothi, imvume encane kakhulu noma engekho ingaholela ekuvaleni kwe-valve engaphelele kanye nokwehla kwengcindezi ekamelweni elivuthayo. Uma ama-valve engahlangene nezihlalo ze-valve, ngeke akwazi ukupholisa phansi, izinga lokushisa lawo lizokhuphuka futhi, ngenxa yalokho, ipulaki ye-valve ingase yonakaliswe (ishiswe).
Lesi simo sizokwenzeka ngokushesha ku-LPG ngoba izinga lokushisa lomlilo lingaphezudlwana kukaphethiloli. Ngaphezu kwalokho, lapho ukwakheka kwegesi kusethwe kancane kakhulu, izinga lokushisa lomlilo liyakhuphuka nakakhulu. Ukulungisa injini kuzobiza. Futhi konke lokhu kungagwenywa ngokulungisa ngokuhlelekile ama-valve. Izindleko zalo msebenzi zincane kakhulu uma kuqhathaniswa nezindleko zokulungiswa kabusha kwenjini.
Ezimotweni eziningi ezikhiqizwayo njengamanje, ukucaciswa kwamavalvu kulawulwa yiziphakamisi ezinama-hydraulic. Kuyafana cishe kuzo zonke izimoto ezintsha. AbakwaHonda nabakwaToyota kuphela abangenaso isiqiniseko ngama-hydraulics futhi abasalokhu bewahlola ngezikhathi ezithile ukuze babone izikhala. 
i-valve. Izimoto ezindala ziyahlukahluka, kodwa kungachazwa ukuthi uma injini inama-valve amane isilinda, cishe ilawulwa ngamanzi. Okuhlukile kukhona ezinye Ford, Nissan futhi, Yebo, Honda futhi Toyota izinjini. Ngakolunye uhlangothi, uma injini inama-valve amabili isilinda, ama-mounting cishe adinga ukulungiswa. I-VW ne-Opel ihlukile lapha. Ezinjinini zalezi zinkampani, ama-valve ayengadingi ukulungiswa isikhathi eside.
Ukulungisa ama-valve ezimotweni eziningi kuwumsebenzi olula. Odinga ukukwenza ukususa ikhava ye-valve futhi okudingayo nje isikrufu nesikrudrayiva ukuze ulungise. Kodwa-ke, kwamanye amamodeli (i-Toyota), ukulungiswa kuyinkimbinkimbi futhi kudinga ulwazi olukhethekile namathuluzi akhethekile, njengoba ama-camshafts, ngakho-ke ibhande lesikhathi, kufanele lisuswe.
Imvamisa yokulungiswa kwegebe iyahluka kakhulu. Kwezinye izimoto, kufanele kwenziwe kukho konke ukuhlolwa, kanti kwezinye, kuphela lapho kushintsha ibhande lesikhathi, i.e. ukusabalala kusuka 10 ukuze 100 ayizinkulungwane. km. Uma injini isebenza ngegesi eliwuketshezi, ukulungiswa kwe-valve kufanele kwenziwe ngisho nakabili kaningi.
