Lesi simo sibangelwa ukushiswa kukaphethiloli okungaphelele. Uma kukhishwa intuthu emnyama, kuvame ukuhambisana nokuncipha kwamandla enjini, izinga lokushisa elingaphezu kwamandla kagesi, nezinga lokushisa lamanzi elidlulele, okuzoholela ekugugekeni kwezingxenye zenjini futhi kunciphise ukuphila kwenjini.

Izimbangela zalesi simo (ziningi izimbangela eziholela ekushiseni okungaphelele) nezindlela zokuqeda zimi kanje:

I-1) I-exhaust back pressure iphakeme kakhulu noma ipayipi yokukhipha ivinjiwe. Lesi simo sizobangela ukungena komoya okwanele, okuzophazamisa isilinganiso sengxube yamafutha omoya futhi kubangele uphethiloli oweqile. Lesi simo senzeka: Okokuqala, ukugoba kwepayipi yokukhipha, ikakhulukazi ukugoba okungu-90 °, kufanele kuncishiswe ngangokunokwenzeka; okwesibili ukuthi i-muffler ivinjwe umule owedlulele futhi kufanele isuswe.

2) Ukungena komoya okunganele noma umgudu wokungenisa umoya ovinjiwe. Ukuze uthole imbangela, kufanele kwenziwe ukuhlolwa okulandelayo: okokuqala, ukuthi ngabe isihlungi somoya sivinjiwe; okwesibili, ukuthi ipayipi lokungena liyavuza yini (uma lesi simo senzeka, injini izoba nomsindo ohlabayo onzima ngenxa yokwanda komthwalo); Ukuthi i-turbocharger yonakele yini, hlola ukuthi isondo lokukhipha umoya kanye nezinsimbi ze-turbocharger zonakele yini nokuthi ukuzungezisa kubushelelezi futhi kuyavumelana nezimo; okwesine ukuthi i-intercooler ivinjiwe.

3) I-valve clearance ayilungiswanga kahle, futhi umugqa wokuvala ama-valve awuxhumene kahle. Hlola ukuphuma kwe-valve, isiphethu se-valve kanye nesivalo se-valve.

I-4) Ukunikezwa kwamafutha kwe-cylinder ngayinye yepompo yamafutha e-high-pressure ayilingani noma idlulele. Ukunikezwa kukawoyela okungalingani kuzodala isivinini esingazinzile kanye nentuthu emnyama. Kufanele ilungiswe ukuze ilingane noma ibe phakathi kwebanga elishiwo.

5) Uma umjovo sekwephuze kakhulu, i-engeli esele yomjovo kufanele ilungiswe.

I-6) I-injector ayisebenzi kahle noma yonakele, kufanele isuswe ukuze ihlanzwe futhi ihlolwe.

7) Ukukhetha imodeli yomjovo akulungile. Izinjini ezinesivinini esikhulu ezingenisiwe zinezidingo eziqinile kuzijovo ezikhethiwe (imbobo yomjovo, inombolo yezimbobo, i-engeli yomjovo). Uma ukukhetha kungalungile, kuzobangela injini ukuthi ikhiphe intuthu emnyama, ngisho noma iwuhlobo olufanayo lwenjini, ezinhlelweni ezahlukene (Lapho amandla okukhiphayo, isivinini, njll. ehlukile), imodeli yomjovo edingekayo ukuze isetshenziswe yehlukile. Uma ukukhetha kungalungile, i-injector yemodeli efanele kufanele ishintshwe.

I-8) Izinga likadizili liphansi noma uphawu alulungile. Injini yedizili enesivinini esiphezulu ephuma kwamanye amazwe efakwe ikamelo elivuthayo elinomjovo onomjovo onembobo inezidingo eziqinile zekhwalithi kanye nebanga likadizili ngenxa yobubanzi obuncane kanye nokunemba okuphezulu komjovo. Uma kungenjalo, kuzodala ukuthi injini ikhiphe intuthu emnyama futhi ibangele nokuthi Injini ingasebenzi ngendlela evamile. Ngakho-ke, amafutha e-diesel ahlanzekile futhi afanelekayo kufanele asetshenziswe. Kunconywa ukuthi uma ukhetha uwoyela we-diesel, sebenzisa i-0 noma +10 ehlobo, -10 noma -20 ebusika, futhi -35 ezindaweni ezibandayo kakhulu.

9) I-cylinder liner kanye ne-piston assembly igqokwa ngokungathí sina. Uma lokhu kwenzeka, indandatho yepiston ayivalwanga ngokuqinile futhi nomfutho womoya kusilinda wehla kakhulu. Ngenxa yalokho, udizili awukwazi ukushisa ngokuphelele futhi ukhiphe intuthu emnyama, futhi amandla enjini ehla kakhulu. Ezimweni ezimbi kakhulu, injini izocisha ngokuzenzakalelayo lapho ilayishiwe. Izingxenye zokugqoka kufanele zishintshwe.