Amabhande esikhathi namaketanga eBMW

Wonke umnikazi wemoto yakwa-BMW uyazi ukuthi kubaluleke kakhulu ukulawula kahle isimo se-timing drive. Kungcono ukuyishintsha njalo ngamakhilomitha ayizinkulungwane eziyi-100, kanyekanye ne-tensioner, i-shock absorber, iphampu yamanzi nezinkanyezi.

Naphezu kweqiniso lokuthi ibanga lokushintshwa liboniswa emiyalweni yokusebenza komkhiqizi, akufanele uthembele kulo mthethonqubo ngokuphelele. Uma kungenjalo, ungaphuthelwa isikhathi esifanele, bese kuzodingeka ukhokhe imali enkulu ukuze ulethe injini esimweni sokusebenza.

Sinini isikhathi sokushintsha ibhande lesikhathi kuBMW

Okokuqala, kufanelekile ukuthola ukuthi uchungechunge lwesikhathi luyini nokuthi kufanele lushintshwe nini. Idizayini yalo mhlangano, umsebenzi wayo ukuvumelanisa ukusebenza kwama-pistons, ama-valve kanye nesistimu yokuthungela, ilula kakhulu.

I-crankshaft kanye ne-camshaft sprockets iba indawo yeketango, ngesikhathi esifanayo ishayela iphampu yamanzi.

Ukuqinisekisa ukushuba kahle kweketango, kufakwa idivayisi ekhethekile ebizwa ngokuthi i-chain tensioner. Uma iketango liphuka, ama-valve okudonsa nawokukhipha azonamathela kuma-piston futhi injini izodinga ukulungiswa okukhulu. Injini akumele isetshenziswe kuze kuqedwe umsebenzi wokulungisa.

Ngokuvamile, abashayeli babhekana nezinkinga ezilandelayo:

Ukubonakala kuphaneli yezinsimbi zenkomba "Hlola injini"

Leli phuzu seliba yinkinga evame kakhulu ezinjinini zezimoto namaloli. Isizathu sokufakwa kwayo kuphaneli yezinsimbi ukutholwa yiyunithi yokulawula ye-elekthronikhi (ECU) yekhodi yephutha kwenye yezinhlelo ezikhona.

Inani eliphelele lamakhodi ephutha akhona lidlula ama-200. Ukuze uhlonze ngokunembile imbangela, kungcono ukuxilonga kwenye yezinsizakalo zemoto ezithembekile.

Ukwenyuka kokusetshenziswa kukaphethiloli

Ngesikhathi sokusebenza kwenjini okujwayelekile, iqinisekisa ukuthi uphethiloli ushiswa ngenani elivumela ukuthi usetshenziswe ngokwezomnotho. Kodwa ezinye izingxenye zesistimu kaphethiloli, njengezihlungi zomoya kanye nophethiloli, ukugeleza komoya omkhulu kanye nezinzwa ze-oxygen, kancane kancane zivezwa ukungcola nokuguga.

Uma zingashintshwa ngesikhathi, okuyisizathu esidume kakhulu sokwenyuka kokusetshenziswa kukaphethiloli, kuzokwandisa ukusetshenziswa kwakho.

Amabhuleki ama-screeching

Esimweni esinjalo, kufanele uhambise imoto kumakhenikha ngokushesha ngangokunokwenzeka, kungase kudingeke ukuthi ushintshe ama-brake pads noma ama-disc.

Shintsha uchungechunge lwesikhathi kuphela lapho lweluliwe. Kuyafaneleka ukucabangela hhayi kuphela isikhathi sokusetshenziswa komshini, kodwa nezimo zokusebenza kwawo.

Izizathu zokushintsha uchungechunge lwesikhathi ku-BMW

Indawo yochungechunge lwesikhathi injini, ngakho ayizwani namathonya angaphandle futhi isebenza cishe buthule. Kodwa lesi sici singabangela ukuwohloka okuvamile.

Umthelela ekusebenzeni komshini wenziwa ngokuya ngekhwalithi yamafutha athululelwa enjinini kanye nenani lawo. Uma kungekho ukuthambisa okwanele, uzodinga ukushintshwa kwengxenye njengoba iguga.

Ukushintshwa kochungechunge lwesikhathi kuyadingeka ngenxa yezizathu ezilandelayo:

• I-tensioner iwile ekuguleni;
• Ukungasebenzi kahle kwe-hydraulic chain tensioner ngenxa yomfutho ophansi kawoyela. Iketango liqinile futhi amazinyo ayashelela;
• Iketango lingashelela futhi ngenxa yamagiya e-camshaft agugile;
• Uma kusetshenziswa amafutha ekhwalithi ephansi, ibhande lingadinga ukushintshwa;
• Iketango lingase lehluleke lapho lisebenza emithwalweni ephezulu noma likumodi yesivinini esikhulu.

Isizathu esiyinhloko sokuthi uchungechunge lwezikhathi lungadinga ukushintshwa yingoba kunzima ukufinyelela. Lokhu kwenza kube nzima ukuvinjelwa nokutholwa ngesikhathi kokungasebenzi kahle kwedrayivu yesikhathi. Uma kuqhathaniswa ne-strap yokulungisa, ifihliwe ngaphansi kwenani elikhulu lama-casings. Ukuze wenze ukuhlola, uzodinga ukuqaqa injini, futhi akubona bonke abashayeli abangakwazi ukusingatha lokhu.

Ukushintshwa kwenziwa njalo ngamakhilomitha ayizinkulungwane eziyi-100, njengoba injini inezinga lokushisa eliphezulu likawoyela, futhi izingxenye zepulasitiki zingancibilika kalula. Ukuba khona kwe-hum lapho injini isebenza ngesivinini esikhulu kuzosiza ukucacisa ukuthi kukhona ukungasebenzi kahle.

Ukushintsha uchungechunge lwezikhathi ku-BMW

Ubuchwepheshe bokushintshwa kwamaketanga bulula, kodwa budinga ithuluzi elikhethekile, ngaphandle kwalokho akukho lutho olungenziwa.

Ukulandelana kwezenzo kuzoba ngokulandelayo:

•       Ukukhipha uwoyela wenjini;
•       Hlukanisa indlu yemoto bese ubuyisela i-gasket;
•       Susa ikhava ye-valve bese ubuyisela i-gasket ngaphansi;
•       Hlukanisa uhlelo lwesikhathi;
•       Geza futhi uhlanze injini kumadiphozithi ekhabhoni;
•       Faka uchungechunge lwesikhathi olusha;

Hlanganisa ngokulandelana.

Kufanele kuqashelwe ngokukhethekile ukuthi phakathi nale nqubo kuyadingeka futhi ukushintshwa kwamabholithi, uphawu lwamafutha e-crankshaft yangaphambili kanye nama-sprockets wesikhathi.