Iketango lesikhathi noma iketango lesitimela se-valve - liyini futhi lishintsha nini?

I-timing chain iyingxenye yenjini yemoto, futhi indima yayo ukuvumelanisa ukujikeleza kwe-crankshaft ne-camshaft phansi nangaphezulu enjini. Lokhu kusiza ama-valve enjini okukhiphayo nawokukhipha umoya ukuthi avuleke futhi avale ngokuhambisanayo ngezikhathi ezichazwe kahle ngokuphenduka ngakunye kwenjini. Uchungechunge lwezikhathi lubizwa nangokuthi - I-Valve Gear Chain.

Ngokuvamile, isebenza njengesixhumanisi phakathi kwenjini ephezulu (ikhanda lamasilinda nama-valve) nangaphansi (ama-piston ne-crankcase). Le nto ifana neketanga elisebhayisikili futhi yenza umsindo ongaphezulu kunebhande lesikhathi.

Isikhathi esifanele phakathi kwesikhawuzi se-valve nesilinda siyisidingo semandla enjini enhle nokusebenza konke kanye nokusetshenziswa kukaphethiloli okonga.

Njengoba i-crankshaft yezinjini ezinama-stroke amane ijikeleza kabili ngejubane le-camshaft, kudingeka uhlelo lokuzivumelanisa. Lolu hlelo lungaba ngezinhlobo eziningana futhi lubandakanye izinto ezahlukahlukene ezahlukahlukene:

• Isikhathi sebhande sokuxhuma imiphini;
• Ukudluliswa kwamagiya;
• Isikhathi samaketanga esixhumanisa amazinyo e-camshaft pulleys ne-crankshaft.

Cabanga ngalezi zinhlelo: izinzuzo nezinkinga zazo:

Ukudluliswa kwamagiya. Kunomsindo omkhulu nokulahleka kwamandla kwangaphakathi ngokuzibandakanya ngqo. Lolu hlobo lohlelo lwaphumelela ekuqaleni kwekhulu lama-20.

Ukushayela ngamaketanga... Iketanga lesikhathi lenza umsindo othule kune-drive eqondile, kepha lenza umsindo omkhulu kunebhande lesikhathi. Ububi beketanga lesikhathi ukuthi belula ngemuva kwebanga elithile. Njengoba lolu chungechunge selululiwe, imisindo yokuklwebha nokungqongqoza izwakala, kanye nokungahambelani phakathi kokuvula nokuvala amavalvu kanye nokuthungela. Ukulimala kumcindezeli wesikhathi seketanga kungaholela ekutheni ngokuvamile iyancipha ngenkathi kusebenza imoto.

Ukuqothula. Amabhande wesikhathi ngakolunye uhlangothi ajwayelekile ezimotweni ezinezinjini zesimanje. Ziyathula uma ziqhathaniswa namaketanga nokushayela okuqondile. Futhi banokungqubuzana okuncane, okusiza ukufezekisa amandla kagesi amancane. Impilo yesevisi yamabhande incike ezintweni ezenziwe ngazo.

Zenziwe ngenjoloba yokwenziwa futhi zinemicu eyengeziwe ye-Kevlar yokugcina ibhande linganwebeki futhi nokuqinisekisa ukuvumelanisa okufanele, okuvumela ukuthi kube nokuhamba okuningi.

Umehluko phakathi kochungechunge lwesikhathi nebhande

Omunye umehluko omkhulu phakathi kweketanga lesikhathi nebhande lesikhathi ukuthi iketanga lesikhathi lingadala umonakalo omkhulu uma liphukile kunebhande lesikhathi. Lapho iketanga lesikhathi liphuka, lidala ukulimala okungenakulungiseka enjinini, okugcina sekungasebenziseki kalula.

Omunye umehluko phakathi kweketanga lesikhathi nebhande ukuthi abahlukumezi bamaketanga balawulwa umfutho kawoyela wenjini. Njengoba ukuthambisa amaketanga okuhle kuncike kwikhwalithi kawoyela, kubalulekile ukukushintsha ngezikhathi ezithile. Uma izinga lehla kakhulu, abahlukumezi bazokhiya futhi uchungechunge lwesikhathi nalo luzolimala.

Inzuzo yalolu hlelo lokugcina isikhathi ukuthi ayihlangani nepompo lamanzi, ngakho-ke asidingi ukufaka elinye iphampu lamanzi kanye nochungechunge lwesikhathi.

Ekusebenzeni kwayo, ifana nebhande lesikhathi, kepha ihlala isikhathi eside. Ngenkathi abanye abakhiqizi bethi iketanga lesikhathi lingaphelelwa isikhathi kanye nemoto uqobo, abanye bancoma ukuthi kushintshwe njalo.

Izinhlobo zamaketanga wesikhathi

Ekuqhubekeni kokuvela kwezinqubo zokusabalalisa igesi, ukuvela okuningi kokushaywa kwezinto ze-drive kuvele, kufaka phakathi amaketanga. Namuhla kunezinhlobo ezimbili zokushayela ngamaketanga:

• Plate futhi roller. Njengoba igama liphakamisa, ama-roller afakiwe kudivayisi yochungechunge olunjalo. Zixhunywe komunye nomunye kusetshenziswa amapuleti nezikhonkwane. Kufakwa izinyo le-pinion phakathi kwesixhumanisi ngasinye se-roller, ukuze i-sprocket ifake uchungechunge futhi idlulise i-torque kusuka ku-crankshaft iye ku-camshaft. Kulesi sigaba samaketanga, kukhona ukuguqulwa okunomugqa owodwa nambili wezixhumanisi. Uhlobo lwesibili lwamaketanga ama-roller roller ikakhulukazi afakwe kuma-motors anamandla anejubane le-crankshaft eliphansi.
• ULamellar. Lolu hlobo lwamaketanga kungumphumela wokwakhiwa kwezinjini ezikwazi ukudlulisa i-torque kuphela nge-high rpm. Idivayisi ye-lamellar chain ifaka ibhlokhi lama-lamellas, elixhunywe kweliseduze ngepini. Lapho amapuleti egobile, kwakheka ikhefu le-angular kubo engxenyeni engaphakathi, lapho kungena khona izinyo le-sprocket nokuzibandakanya.

Uma kuqhathaniswa namaketanga ama-plate-roller, i-analog plate isinempilo ende kakhulu. Futhi, lesi sigaba samaketanga senza umsindo omncane kakhulu ngesikhathi sokusebenza. I-caveat kuphela ukuthi bafuna kakhulu ikhwalithi kawoyela wenjini.

Izincomo zokushintshwa

Abakhiqizi batusa ukushintsha uchungechunge ngezikhathi ezithile - ngemuva kwe-100-200 km. Umthethonqubo onembe kakhudlwana uncike kumodeli yemoto kanye nekhwalithi yeketango elisetshenzisiwe. Ukushintshwa okufika ngesikhathi kweketango lesikhathi kuqinisekisa ukusebenza kahle kwenjini. Le nqubo izophinde ivimbele ukuphuka kwenjini (kwezinye izimoto, lapho isifunda siphuka, i-piston igoba ama-valve, okuholela ekulungisweni okukhulu kwe-motor).

Kunconywa ukufaka elinye iketanga ndawonye nama-rollers, tensioner kanye namagiya, ngoba akunconywa ukufaka iketanga elisha lesikhathi kuma-roller asevele esegugile. Kungcono ukuthatha zonke izakhi kusethi ukugwema ukuthi kungenzeka ukungahambelani phakathi kwezingxenye.

Lapho iketanga lesikhathi liphuka ngejubane eliphansi, lingamane lishelele emapulini futhi lingadali umonakalo omkhulu. Kepha uma liphuka ngesivinini senjini enkulu, leli chungechunge lizolimaza yonke into eseduzane. Imiphumela kunzima ukuyichaza kusengaphambili, ngoba ngesikhathi somoya onamandla, iketanga lingandiza liye ezingxenyeni eziningana futhi lithinte okunamathiselwe okuhlukahlukene. Ngemuva kwalokho, imoto ingalungiswa, kepha ngeke ishibhile nakancane.

Ukusebenza kabi kwezinjini nokungqongqoza kuyizimpawu zokuxwayisa ngomonakalo ochungechungeni lwezikhathi. Ngokungafani nalesi sici, ibhande lesikhathi alibonisi zimpawu zokuqala zomonakalo, futhi ukuqhuma kwalo kwenzeka ngokuzumayo, ngemuva kwalokho ama-valve agobile kanye nama-piston ayawa, okusiqinisekisa ngokulungiswa okubizayo.

Ngalezi zizathu, ukugcinwa okulungile futhi okufika ngesikhathi kubalulekile futhi kuvimbela ukulimala kwenjini.

Amathiphu awusizo

Kunconywa ukuthi ubheke njalo isimo sedrayivu ngokuya ngemiyalo yomkhiqizi, futhi ubheke ngokuqinile izikhathi zokushintshwa kweketanga lesikhathi.

Kumele kuqashelwe lapho kushintshwa iketanga lesikhathi ngoba lokhu kunquma nokuthi injini izosebenza kanjani. Uma uchungechunge lwesikhathi lufakwe ngokungalungile, injini nayo ngeke isebenze kahle. Ukulungisa kufanele kwenziwe ngqo.

Izinto zeDrayivu kufanele zishintshwe njalo ngokuya ngezincomo zemoto yethu. Ukuthenga izingxenye zekhwalithi kuzokwandisa impilo yochungechunge lwakho lwezikhathi.

Ukushintsha iketanga lesikhathi: igxathu negxathu

Inqubo yokufaka esikhundleni seketanga ifaka lezi zenzo ezilandelayo:

• Ukuqaqa izembozo zokuzivikela;
• Ukuvinjwa kwebhokisi lamagiya;
• Ukufaka esikhundleni samaketanga;
• Ukufaka esikhundleni se-dampers kanye ne-chain tensioners;
• Buyisela futha kawoyela uma kunesidingo;
• Ukufakwa kwezembozo zokuzivikela.

Izimpawu zochungechunge lwesikhathi olonakele

Iketanga lesikhathi elingalungile lingaholela ekulimaleni kwe-crankshaft ne-camshaft, i-pistons, izindonga zesilinda.

Esinye sezibonakaliso zokonakala kuketanga lesikhathi kungqongqoza, okungeke kunganakwa, kanye nokulahleka kwamandla, ukuthungela okunzima, idling. Ukuphela kwamandla kungenye inkomba yochungechunge lwesikhathi eseluliwe.

Lapho uchungechunge lwesikhathi lonakele, luzophazamisa ukusebenza kwenjini. Ngenxa yalokhu, ukusetshenziswa kukaphethiloli kungakhuphuka, kanye nezinga lezinto eziyingozi ku-exhaust.

Ukwenza kancane iketanga lesikhathi kungalimaza ezinye izinto endaweni eseduze.

Ukungezwani okweqile nokwephuka okungahle kwenzeke kochungechunge lwesikhathi kungadala ezinye izinkinga njengokulimazeka kwamavalvu wenjini. Uma uchungechunge lwesikhathi luphukile, injini ngeke ikwazi ukuqala.

Futhi, ukulimala kuketanga lesikhathi kungaholela ekushiseni kwenjini. Njengoba iphampu lamanzi liqhutshwa iketanga lesikhathi, ukuxegisa uchungechunge lwesikhathi kuzophazamisa ukusebenza kwepompo yamanzi.

Lapho izinyo egiyeni liphuka, iketanga lingashibilika, okuzokwenza ukuthi isikhathi se-valve sigudluke futhi ama-valve angahlangana nama-piston. Lokhu kulimaza umqhele we-piston futhi kubangele ukuthi ama-valve agobeke, okuholela ekulungisweni okukhulu kwezinjini.

Uma ngesikhathi sesheke siqaphela ukuthi uchungechunge lwesikhathi luxinene kakhulu, khona-ke kungcono ukulifaka elisha esikhundleni salo lize liphule. Kubalulekile ukwazi ukuthi ukufakwa okungalungile kochungechunge lwesikhathi nakho kungadala ukulimala okukhulu kwenjini.

Njengoba ukushintshwa kweketanga lesikhathi kunama-nuances amaningi (udinga ukusetha kahle isikhundla se-crankshaft ne-camshaft), kunconywa ukuthi uphathise lo msebenzi kusikhungo sesevisi sobuchwepheshe.

Ukuvama kokushintsha iketanga lesikhathi

Njengoba kukhonjisiwe iningi labakhiqizi bezimoto, iketanga lesikhathi lifakwa sonke isikhathi sokusebenza kwemoto. Kodwa-ke, le nto yenjini inamandla okwelula. Ngalesi sizathu, ukungezwani kwamaketanga kufanele kuhlolwe ngezikhathi ezithile. Lo msebenzi wenziwa ngutensioner, ophela ngokuhamba kwesikhathi.

Uma i-tensioner isha, kepha iketanga selivele seleluliwe kahle, khona-ke lidinga ukushintshwa. Uma lokhu kungenziwanga, khona-ke ngesikhathi sokusebenza kwemoto, ngenxa yomthwalo omkhulu, idrayivu ingashelela isixhumanisi esisodwa noma ezimbili. Lokhu kungasebenzi kahle, esimweni samanye ama-motors, kungadala ukulimala kwama-piston nama-valve ngenxa yokushayisana kwawo (umzuzu usushintshile lapho i-piston isendaweni ephezulu efile, futhi wonke ama-valve avaliwe).

Ukwelulwa kweketanga lesikhathi kuboniswa ngokwanda komsindo ngesikhathi sokusebenza kwenjini. Ngenxa yokuhamba kwesikhathi se-valve, iyunithi yamandla izobe ingazinzile noma ngeke ikwazi ukuqala nhlobo.

Vele, akufanele ulethe imoto esimweni esinjalo. Kumamodeli amaningi we-auto, iketanga ligijima lisuka kumakhilomitha ayizinkulungwane eziyikhulu kuya kwezingama-100. Kodwa uma imoto isebenza ngokucophelela, isikhawu sokushintshwa kwamaketanga singakhuphukela ku-170 ayizinkulungwane. Into esemqoka ukuqapha ukungezwani kwayo. Kepha uma imoto ihambe cishe izinkulungwane ezingama-200, khona-ke udinga ukuhlela umsebenzi wokushintsha iketango, noma libukeka livamile. Ama-microcracks asensimbi noma ukulimala kwesinye sezikhonkwane kunzima kakhulu ukukuthola, futhi lokhu kuzoholela ekuqhekekeni kwesici se-timing drive.

Iphi iketango lesikhathi

Kukho konke ukulungiswa kwamayunithi kagesi afakwe indlela yokusabalalisa igesi, kunezinhlobo ezimbili eziyinhloko ngokusho kwendawo yedrayivu yesikhathi:

• Ngaphambili. Lokhu ukwakheka okudala okusetshenziswa kumamodeli amaningi ezimoto. Kulokhu, iketanga likhona ngakolunye uhlangothi lwendiza, okungukuthi lapho kutholakala khona idrayivu yepompo yamanzi, isipholisi nomoya ophehla ugesi. Ubuhle balo mklamo ukuthi kulula ukugcina nokufaka esikhundleni idrayivu.
• Ngemuva. Kulomklamo, indlela yokusebenza yesikhathi itholakala ohlangothini olufanayo nefayilivili. Okubi kwalolu lungiselelo ukuthi kuphazamisa kakhulu ngisho nokubuka ngamehlo iketanga ngaphandle kokulikhipha emotweni. Ngaphandle kweqiniso lokuthi ukuhlelwa kwangemuva kochungechunge akusebenzi, le nketho isasetshenziswa, futhi, ngabakhiqizi bezimoto abaziwayo, isibonelo, i-BMW kanye ne-Audi.

Ukukhetha uchungechunge lwesikhathi olusha

Njengokukhethwa kwezinye izingxenye, kunezindlela eziningana zokuthola uchungechunge lwesikhathi esisha. Indlela yokuqala ukucinga esitolo semoto ngemodeli yemoto. Kulokhu, umthengisi kufanele anikeze usuku lokwenziwa komshini, amapharamitha weyunithi yamandla. Uma imodeli isebenza, khona-ke lolu lwazi lwanele kumsebenzi wesitolo sezimoto, futhi uzothola masinyane inketho efanelekile.

Kungcono kakhulu ukucinga into entsha yedrayivu ngenombolo ye-VIN. Mayelana nokuthi itholakala kuphi, nokuthi iluphi ulwazi mayelana nemoto eliqukethe ukubuyekeza okuhlukile... Kulokhu, kungaqinisekiswa ukuthi kuzothengwa iketanga eliphakeme nelifanele.

Uma wenza usesho oluzimele kukhathalogi ye-elekthronikhi, kuzodingeka ukuthi ufake ngokucophelela yonke idatha emayelana nemoto. Iningi lezinsizakusebenza ze-Intanethi zinikeza imininingwane ethembekile mayelana nezingxenye ezithengisiwe, kepha ngenxa yokuzethemba, kungcono ukuxhumana nezinkampani ezethembekile. Zingabonwa ngenani lemikhiqizo ethengisiwe, kanye nokubuyekezwa kwamakhasimende.

Nayi iqhinga elincane ukwenza kube lula ukuthola izinketho ezingabizi kakhulu. Kwezinye izingosi ze-Intanethi, ngaphezu kwedatha yekhodi ye-VIN, inombolo yekhathalogi ikhonjisiwe kumatafula. Uma intengo yochungechunge olunjalo iphakeme kakhulu, ungasesha ezinye izitolo eziku-inthanethi. Kwamanye amakhathalogi, kuboniswa inombolo yekhathalogi kuphela. Kulokhu, ungacacisa inombolo ebhalwe etafuleni lesiza esedlule.

Uhambo lwabakhiqizi

Manje ake sikhulume kancane ngabakhiqizi. Njengakwezinye izingxenye, kunezinhlobo ezimbili zamaketanga: ezangempela nezingezona ezangempela. Iningi labakhiqizi bezimoto bagcwalisa amamodeli abo ngemikhiqizo evela eceleni. Kepha lezi yizinkampani ezifakazelwe kuphela ezinaka ngokwanele ikhwalithi yemikhiqizo ekhiqizwayo. Le mikhiqizo yabakhiqizi ingatholakala ezitolo zezingxenye zezimoto.

Kepha maqondana namaketanga wesikhathi, kufanele kukhunjulwe ukuthi ezimweni eziningi lezi zinto zizothengiswa kanye nezinye izingxenye ezisele ze-timing mechanism drive (i-damper, tensioner, izimvu zamanzi ezahlukahlukene, ama-sprocket kanye nesihlangu).

Naba abanye abakhiqizi abathengisa imikhiqizo ehloniphekile:

• INA yesiJalimane;
• IsiSwidi SKF;
• IsiJapane SENZA;
• IsiNgisi BGA;
• IWIS yesiJalimane;
• I-American Dayco.

Ungathola futhi amakhithi wekhwalithi enhle athengiswa izinkampani zokupakisha. Phakathi kwazo i-SWAG ne-Febi kukhona izinkampani zaseJalimane. Ungabethembi labo bakhiqizi abanikela ngezimpahla ngentengo "eyengayo". Imvamisa amaketanga anjalo anokuphila okuncane okusebenzayo futhi aqhekeka ngokushesha.

Izinzuzo zamaketanga wesikhathi

Izindlela zokuhambisa igesi eziqhutshwa ngamaketanga zisetshenziswe ezimotweni isikhathi eside. Ngalesi sizathu, abanye abashayeli bakholelwa ngephutha ukuthi le nketho intuthuko yasendulo futhi ngemoto yesimanje iyinsalela yesikhathi esedlule. Eqinisweni, lokhu akunjalo. Namuhla, abenzi bezimoto abanjengoMitsubishi, BMW neToyota basebenzisa lolu hlobo lwezindlela zokusabalalisa igesi kwezinye izinhlobo zezimoto.

Uma siqhathanisa ibhande lokushayela ne-chain drive, owesibili unezinzuzo ezilandelayo:

1. Umonakalo omncane womshini ngenxa yomthwalo omkhulu emotweni;
2. Insiza enhle yokusebenza. Njengoba sesishilo, uma uyinakekela kahle imoto futhi uqinisa iketanga ngesikhathi, ingakhuphuka ize ifike kumakhilomitha ayizinkulungwane ezingama-250;
3. Ukusebenza kweketanga akuxhomekile ekushiseni okukhona (emithwalweni ephezulu nasemazinga okushisa aphansi, ibhande lingalimala);
4. Uchungechunge alunwebeki ngokushesha okukhulu. Lokhu kwenzeka kuphela lapho ukuphela kwempilo yesevisi kusondela;
5. Imelana nokugcwala ngokweqile okwesikhashana.

Okubi kwedatha yesikhathi sokushayela

Naphezu kwezinzuzo ezibalwe ngeketanga lesikhathi, lokhu kuguqulwa kusenezithiyo ezithile. Nazi ezimbalwa zazo:

1. Imoto inesisindo esingaphezulu kwesishayela ibhande. Ezimotweni zomphakathi lokhu akubucayi, kepha ezimotweni zezemidlalo le parameter ingenye ebaluleke kakhulu (abanye abenzi bezimoto batshale izinkulungwane zamaRandi ekwakheni izimoto ukuze "bazuze" amanye ama-kilograms ambalwa);
2. Ukukhiqizwa kwamayunithi anjalo amandla kubiza kakhulu ngenxa yomklamo oyinkimbinkimbi. Umthengi wokugcina uthola ingxenye ebizayo ngenxa yalokho;
3. Ukuba khona kwezingxenye ezingeziwe kunoma iyiphi indlela kukhulisa ubungozi bokungasebenzi kahle kuyo. Kuyafana nasendleleni yokusabalalisa igesi, ngokunembile, idrayivu yayo;
4. Ngenxa yobulukhuni bomklamo, uchungechunge kunzima kakhulu ukuluguqula - noma ukuluqinisa, kuyadingeka ukuqeda ikhava kumshini wokusabalalisa igesi (kuya ngemodeli yemoto). Uma lo msebenzi wenziwa uchwepheshe esiteshini sesevisi, umshayeli kuzofanele ahlukane nenani elifanele lemali;
5. Uma kuqhathaniswa nebhande lokushayela, iketanga lisenza umsindo ngaso sonke isikhathi lapho imoto isebenza.

Ekupheleni kokubuyekeza kwethu, sinikeza ividiyo emfushane yokuthi kungani amaketanga egqashuka kaningi ezimotweni zesimanje kunezizimoto ezindala:

Uzungu lomhlaba wonke lwabenzi bezimoto: Kungani amaketanga esikhathi ephula izinjini zesimanje?

Insiza yochungechunge lwesikhathi enjinini ene-turbocharged futhi eshisekela ngokwemvelo

I-chain drive yesistimu yesikhathi ingafakwa kuzo zombili izinjini zomkhathi kanye ne-turbocharged. Ezitshalweni zamandla ezijwayelekile, zasemkhathini, alukho ulwazi oluqondile mayelana nesikhathi esiqondile sokushintsha iketango. Ngeshwa, akukho okuphakade kulo mhlaba. Kodwa-ke, ngokusho kwabanye abakhiqizi - ezimotweni ezinezinjini zomkhathi, insiza yeketanga lesikhathi, njengomthetho, akunqunyelwe, okungukuthi, yenzelwe impilo yonke yenjini, futhi lokhu, ngokwesilinganiso, kumayelana 250-350 amakhilomitha ayizinkulungwane. Kodwa lokho akusho ukuthi akufanele sibukele iketango.

Ngokuqondene nezinjini ezifakwe i-turbocharger, imithetho ehlukene iyasebenza lapha. Kuyaziwa ukuthi izinjini ze-turbo zine-torque nomzamo omkhulu, ngakho-ke, zinamandla kakhulu kunozakwethu bomkhathi. Kungakho umshini wamaketanga kumamotho anjalo unokuphila kwenkonzo okuhlukile, ngokuvamile kuncane. 

Ukuze uthole ireferensi - izinjini ezijwayelekile ezinama-turbocharged zinesilinganiso sempilo yeketango cishe Izinkulungwane eziyisithupha amamayela nokunye. 

Imibuzo nezimpendulo mayelana nochungechunge lwesikhathi:

Kukangaki ukushintsha uchungechunge lwesikhathi. Njengoba kukhonjisiwe kumiyalo yokusebenza yezinhlobo eziningi zezimoto, iketanga lesikhathi, ngokulungiswa okufanele, lenzelwe impilo yonke yemoto. Ukufakwa okuhleliwe kwalesi sici seyunithi yamandla akuhlinzekiwe. Ngokuyinhloko, iketanga liyashintsha njengoba liphela. Yonke imoto idinga lokhu ngesikhathi sayo. Uma sicabangela izimo zokusebenza ezinhlangothini eziphakathi nezipholile, ngokuvamile iketanga lidinga ukushintshwa ngemuva kwamakhilomitha ayizinkulungwane eziyi-170.

Unganquma kanjani ukugqoka kwamaketanga wesikhathi. Ukuze wenze lokhu kubalulekile ukuqaqa ikhava ye-valve. Okokuqala udinga ukunquma izinga lokugqokwa kwalowo ofaka uvivinyo. Uma ukugqoka kwayo kungalinganiselwa kumaphesenti angama-70, khona-ke kufanele kushintshwe. Ukubuyela emuva phakathi kwezixhumanisi zamaketanga nakho kuyisifo esibi. Okunye okungenziwa ukuthola isimo sesekethe kunesithwebuli, esizokhombisa amasiginali angalungile avela kunzwa ye-camshaft.

Ingabe uchungechunge lwesikhathi eseluliwe luthinta ukusetshenziswa kukaphethiloli? Yize uchungechunge lwesikhathi lungabambi iqhaza ngqo ekusatshalalisweni kwesikhathi se-valve, lo mzuzu uncike esimweni saso. Lokhu kungenxa yokuthi ukwelula izixhumanisi kubangela ukuthi izigaba ziguquke kancane. Ngokwemvelo, lokhu kuthinta ukuzinza kwenjini yomlilo yangaphakathi. Ngokwezinga elithile, ukusabela kokucindezela i-pedal gas kuyadideka, yingakho umshayeli edinga ukuyikhama yonke indlela kaningi. Ngenxa yalokho, injini iqala ukusebenzisa uphethiloli omningi.