Yini lokho kungqongqoza?
Ukushaya kwenjini akusho lutho oluhle futhi ngeshwa kuwuphawu lokuthi sizosebenzisa imali eningi esikhathini esizayo esiseduze.
Ukuze ube nezimbalwa zazo ngangokunokwenzeka, kuyadingeka ukwenza ukuxilongwa okulungile.
Injini iwumshini oyinkimbinkimbi kakhulu futhi kuningi okungasebenzi kahle kuyo. Olunye lwezimpawu zomonakalo ukungqongqoza okungahambisani nomsindo wenjini ojwayelekile. Uma uqala injini ebandayo, izinga lomsindo liphakeme kakhulu kunalapho iyunithi ivuliwe. 
kufudunyezwe kuze kufike ezingeni lokushisa lokusebenza. Kunjalo ngezinjini zikadizili, ezibonakala ngesiko eliphansi lomsebenzi ngemuva kokuqala. Lokhu kuvamile futhi akufanele ukhathazeke ngakho. Nokho, lapho ngemva kwemizuzwana embalwa noma embalwa, noma injini isifudumala, kuzwakala ukungqongqoza kwensimbi eduze kwesembozo sevalvu, lokhu kubonisa umonakalo eziphakamisini zama-hydraulic. Isizathu salokhu kungase kube amafutha noma amafutha angalungile angakaze ashintshwe isikhathi eside. Ukungqongqoza okunjalo kuzwakala ngisho kungabikho ukulungiswa kwe-hydraulic. Khona-ke udinga ukulungisa ukucaciswa kwe-valve. Lo mcimbi ubiza phakathi kuka-PLN 30 no-500, kuye ngezinkinga.
Ngeshwa, kungase kuvele ukuthi imbangela yokungqongqoza kwekhava ye-valve i-camshaft eyonakele, noma kunalokho amakhamera avula ama-valve. I-roller entsha iyabiza, ngakho-ke ungazama ukuyibuyisela (30 kuya ku-50 PLN ngekhamera ngayinye) noma uthenge esetshenzisiwe.
I-Metallic knocking kungenzeka futhi uma injini ifudumele. Uma kwenzeka ngaphansi komthwalo kanye nesivinini esiphansi senjini, lokhu kusho ukusha okungqongqozayo okwenzeka enjinini kaphethiloli esebenza kuphethiloli wekhwalithi ephansi noma uma isikhathi sokubasa singasethwanga ngokungalungile. Futhi ngaphansi komthwalo, noma ngabe injini iyashisa noma cha, ama-bushings kanye nephinikhodi ye-piston kuzenza zizwe. Umsindo uzonyakaziswa futhi uvalwe futhi ucace nakakhulu ngaphansi komthwalo, kodwa uzonyamalala ngokuphelele lapho udedela unyawo lwakho ku-pedal yegesi. Iphinikhodi izozwakala ngenhla kanye nama-projectiles angaphansi kwenjini. 
Ukuxilonga kunzima kakhulu ngenxa yomsindo omkhulu okhishwa injini. I-stethoscope izokusiza kakhulu, ngenxa yokuthi ungakwazi ukulalela injini ngokunembile.
Idrayivu yesikhathi nayo ingaba nomsindo. Iketango eligugile lizobangela ukuhwashaza kwesici. Ungalishintshi iketango ngokushesha, njengoba ukusebenza okunomsindo kungabangelwa i-tensioner eyonakele noma umfutho kawoyela ophansi kakhulu, onomthelela omkhulu ezingeni lokushuba kweketango.
Imisindo eyahlukene ingavela futhi ezintweni ezisetshenziswayo, ama-tensioner bearings noma ama-V-belt axegayo. Kodwa le misindo iyisici kakhulu, ngakho umakhenikha omuhle akufanele abe nobunzima ekuxilongeni ngendlela efanele.
