Isivalo se-valve. I-valve cover gasket - izimpawu zokulimala nokushintshwa.

I-valve cover gasket (eyaziwa nangokuthi i-valve seal) ivala ukuxhumana phakathi kwesembozo se-valve nekhanda lesilinda. Ukulimala kwayo kungenye yezimbangela ezivamile zokuvuza kwamafutha enjini ezimotweni ezindala. 

Yiziphi izizathu zokulimala kwawo? Sibuze uchwepheshe ngakho. Siphinde sahlola ukuthi yiziphi izixazululo ezisetshenziswa omakhenikha ukuze "basize" i-gasket engeke ivaleke.

Ukuvuza kwamafutha enjini kuyingozi kakhulu. Bangaholela ku ukuguga okusheshisiwe noma ukuminyana kweyunithi yokushayela . Ikakhulukazi uma sisebenzelana nekhasimende elibheka ngaphansi kwe-hood kuphela lapho isibonisi sezinga likawoyela kudeshibhodi yemoto sikhanya.

I-valve cover gasket - iyini futhi ihlelwa kanjani?

Ikhava ye-valve yakhelwe ukuvikelwa kwama-camshafts, ama-valve kanye nezingxenye ezengeziwe zohlelo lokusabalalisa igesi, efakwe ekhanda lesilinda. I-gasket yesivalo se-valve ivala uxhumano phakathi kwesembozo se-valve nekhanda lesilinda. Ngalokho ukuvimbela ukuvuza kwamafutha enjini .

I-valve cover gaskets ngokuvamile yenziwa ngerabha eqinile. Izimoto ezindala zisebenzisa ama-gaskets ekhava ama-valve kakhokho.

Izimoto ezindala kanye nezimoto eziningi zesimanje zisasebenzisa izembozo zamavalvu ensimbi, ngokuvamile i-aluminium. Ngezansi kune-gasket yerabha (incane kaningi i-gasket kakhokho). Kulokhu, uma kwenzeka ukuvuza, uphawu olulimele kuphela oluthathelwa indawo.

Kodwa eminyakeni yamuva kuye kwavela isixazululo esisha, esisetshenziswa kaningi. yona ama-valve epulasitiki (i-duroplast noma i-thermoplastic, ene-fiberglass reinforcement). I-valve cover gasket ihlanganiswe nabo. Ngakho-ke, uma kwenzeka ukuvuza, kusala ukufaka esikhundleni se-cap yonke nge-gasket ehlanganisiwe.

Izimpawu ze-gasket yekhava ye-valve eyonakele

Izimpawu ezibonakala ngeso lenyama - imikhondo yamafutha enjini phezulu enjinini . Enkulumweni yokuxoxisana, ngokuvamile kuthiwa "injini iyajuluka." Uphawu lwesibili, kunjalo, njalo lehla izinga likawoyela wenjini . Okwesithathu - (mhlawumbe) ukuvutha amafutha iphunga , econsa bese ishisa enjinini eshisayo.

Amafutha avuzayo avela ku-gasket yekhava ye-valve eyonakele angangena ebhandeni elinezimbambo ze-V noma ibhande lesikhathi (ezimotweni ezingenasembozo sebhande). Futhi kanjalo kungaholela ekubhujisweni kwebhande le-V-ribbed noma ibhande lesikhathi .

Izimbangela zokuguga kwe-valve cover gasket

Kungani uwoyela evuza ngaphansi kwesivalo se-valve gasket? Yini ethinta ukuguga kwe-valve cover gasket? Sibuze uchwepheshe ngakho

U-Stefan Wujcik, uchwepheshe wakwa-Dr Motor Automotive, umkhiqizi owaziwayo wama-gaskets ezimoto, okuhlanganisa nama-gaskets ngaphansi kwesembozo sekhanda lesilinda, usibonise izizathu ezibaluleke kakhulu zokuguga kwama-cylinder head gaskets. Yona:

• Ukunciphisa Izimvu zamanzi ziyaguga. Ngisho nezingcono kakhulu ezikhiqizwe abakhiqizi abanophawu. Yingakho ukuvuza ngokuvamile kwenzeka ezimotweni ezineminyaka eminingana ubudala. Nalezo ezihlinzekwe ngendlela efanele.
• Ikhwalithi ephansi - ukwehluleka kungase kwenzeke ngaphambili uma i-gasket yekhwalithi embi kakhulu isetshenziswa emotweni. Lokhu kungaba iphutha lomkhiqizi kanye nokusetshenziswa kwe-gasket yekhwalithi embi ngesikhathi somhlangano wokuqala. Noma umshini wokukhiya ofaka i-gasket eshibhile kakhulu ngesikhathi sokulungiswa futhi ... okunye ukwehluleka kwe-gasket, ngisho nangemva kwezinyanga ezimbalwa.
• Isistimu yokupholisa enephutha – I-gasket yekhava ye-valve ingase futhi ibe ngaphansi kokuguga okusheshayo uma isistimu yokupholisa yemoto inephutha. Izinga lokushisa eliphakeme kakhulu lenjini lisheshisa ukuguga kwe-valve cover gasket. Isizathu singase sibe, isibonelo, ukwehluleka kwe-thermostat (i-jamming endaweni evaliwe), izinga lokupholisa eliphansi kakhulu, ukwehluleka kwefeni, ukusetshenziswa kwamanzi esikhundleni sokupholisa.
• Uwoyela wezimoto   - ukusetshenziswa kwamafutha enjini esezingeni eliphansi kanye nokushintsha kukawoyela okungajwayelekile.
• Isimo esingesihle seyunithi yokushayela - Injini egugile isheshisa ukuwohloka kwe-gasket ngaphansi kwesembozo sevalvu.

Ukwehluleka kungase kubangelwe futhi ukubekwa uphawu okungalungile . Kunemihlahlandlela eminingi ku-inthanethi (okuhlanganisa namavidiyo wokufundisa) akubonisa isinyathelo ngesinyathelo ukuthi ungayilungisa kanjani ingxenye ngokwakho. Amanye amakhasimende kungenzeka ashintshe ngokungafanele i-gasket yekhava ye-valve ngokwawo, okubangela inani lamaphutha ahambisana nokungalungiseki okwanele kwezindawo eziseduze noma ukuqiniswa okungafanele kwamabhawodi afakwayo.

Kufanele ishintshwe nini le gasket?

Izinga lokushisa eliphezulu elikhona emoteni linomthelela omubi empilweni yophawu. Ngokuhamba kwesikhathi, iba nzima, iyaqhekeka futhi iyeke ukuvaleka kahle. . Lokhu kuzobonakala ngokuvuza kukawoyela endaweni yesembozo se-valve, ezoqala ukugeleza enjinini, futhi kwezinye izinjini zizovela emithonjeni ye-spark plug. Isisekelo sokubheka lesi simo ukuxilonga okufanele kanye nokunquma ukuthi ukuvuza kuvela ngokuqondile yini kukhava yevalvu.

I-Valve Cover Gasket Replacement kanye Nezinkinga Zekhava Yevalve Empofu

Ngezinye izikhathi ukufaka i-gasket yekhava ye-valve entsha akusizi. Kungani? Ukuvuza kungase kubangelwe izinkinga ngokulingana kahle kwekhava yevalvu ukuya phezulu enjini . Isembozo se-valve singase sigotshwe, sisontekile, noma sonakaliswe ngenye indlela. Kulokhu, akukho lutho olusele ngaphandle kokusebenzisa ikhava entsha.

Ngezinye izikhathi omakhenikha basebenzisa ezinye izixazululo, kodwa ukukhuluma ngokulungiswa kochwepheshe kanye nomphumela wesikhathi eside kunzima. Enye yazo kungaba ukusetshenziswa kwe-silicone eyengeziwe yokushisa okuphezulu, okumele (ngokwethiyori) kunxephezele ukuvuza okubangelwa ukulingana okungalungile kwekhava phezulu kwenjini.

Yini okufanele ikhunjulwe ngaphambi kokufaka i-valve cover gasket?

Nawa amathiphu awusizo:

• Umehluko kumanani ephedi phakathi kwemikhiqizo enophawu lwekhwalithi kanye nemikhiqizo eshibhile engeyona enophawu ayinamsebenzi. Kungcono ukukhetha i-gasket enhle ezoqinisekisa ukuqina kanye nomphumela omuhle wokulungisa.
• Kudingeka susa izinsalela ze-gasket endala enekhanda lesilinda nesembozo sevalvu.
• Kufanelekile ukusebenzisa izikulufo ezintsha zokulungisa .
• Qinisa amabhawudi ekhava yevalvu nge-torque wrench nomzuzu odingekayo. Ukuhleleka okuqiniswa ngayo izikulufu nakho kubalulekile.
• Ngemva kokufaka uphawu phakamisa izinga likawoyela wenjini .

I-DIY: ukufaka esikhundleni se-valve seal

Uma uzwa ukuvuza kwamafutha eduze kwesembozo se-valve, cishe uzodinga ukufaka esikhundleni se-gasket yekhava ye-valve. Lona akuwona umsebenzi onzima kakhulu esingawenza uma sinamathuluzi ayisisekelo kuphela. Kulo mhlahlandlela, uzofunda ukuthi lolu phawu lukuphi, ukuthi lushintshwa nini, nokuthi ungawuqedela kanjani wonke umsebenzi.

Isinyathelo sokuqala uku-oda i-gasket efanele . Uma ufuna ukuyithenga ku-Allegro, cinga ukwakheka nemodeli yemoto yakho namandla enjini yakho, isibonelo, "Mercedes 190 2.0 valve cover gasket". Uma, ngemva kokufunda incazelo yomkhiqizo, asinaso isiqiniseko sokuthi i-gasket izolingana nenjini yethu, kufanelekile ukuxhumana nomthengisi ngale njongo, ngakho ngokubheka inombolo ye-VIN, sizoqiniseka ukuthi i-gasket ifaneleka injini.

Khona-ke ake sigcwalise wonke amathuluzi nezinsiza ezizokwenza futhi zenze wonke umsebenzi ube lula. Amathuluzi afana nalawa:

• isethi yama-socket wrenches, okhiye be-hex, ama-Wrenches e-Torx ane-ratchet nezandiso (isb., i-YATO),
• i-torque wrench enobubanzi obuvumela ukuqina nge-torque engu-8 kuye ku-20 Nm (ngokwesibonelo, i-PROXXON),
• izidladla ze-universal,
• Phillips kanye ne-screwdrivers flathead
• i-gasket/i-glue scraper, ibhulashi locingo,
• ithawula lephepha noma indwangu kanye nophethiloli okhiphayo,
• i-rubber mallet.

Isinyathelo esilandelayo sizoba ukuhlakazwa kwezingxenye eziphazamisa ukukhishwa kwesembozo se-valve . Kuye ngemodeli ethile kanye nohlobo lwenjini kanye nenani lamasilinda, lokhu kuzoba nzima kakhulu (ku-V-injini, okungenani kunama-gaskets amabili). Okuvame kakhulu iyunithi yomugqa wamasilinda amane. Njengomthetho, kuzodingeka sisuse ikhava yenjini yepulasitiki, izintambo ze-spark plug noma amakhoyili (enjinini kaphethiloli), kanye nezintambo namapulaki kwezinye izinzwa. . Kwesinye isikhathi kuyodingeka futhi ukuthi kukhishwe izindlu eziningi zokungenisa kanye nesihlungi somoya.

Lapho ukhipha izintambo kuma-spark plugs noma ama-spark plugs kumakhoyili okuthungela, qaphela lapho ucingo luvela khona (sikhuluma ngohlelo lokukhanyisa). Ukuze ukhumbule lokhu, kuhle ukunamathisela ucezu lwe-adhesive tape enenombolo entanjeni ngayinye (isibonelo, ngokulandelana kusukela ngaphambili kwenjini).

Ngemva kokudiliza yonke into evimbe ukufinyelela kwethu, isinyathelo esilandelayo ukususa ikhava yevalvu . Ngaphambi kokwenza lokhu, kufanele ukhiphe injini ngomoya ocindezelwe ukuze uqiniseke ukuthi akukho lutho olungena ngaphakathi. Ikepisi livame ukubanjwa ngamabhawodi noma amantongomane ambalwa angu-8 noma 10 mm, ngakho sebenzisa isikrufu sesokhethi esingu-13 noma 17. esinezimbobo lapho sizofaka khona izikulufu. Uma kunenkinga yokukhipha ikhava ye-valve, singayithinta nge-mallet yerabha. Sizozama futhi ukusika i-gasket endala ngommese obukhali (ngemuva kwesikhathi eside inganamathela ekhanda noma ikhava).

Manje susa i-gasket endala nazo zonke izinsalela zayo . Sizosebenzisa i-scraper efanelekile yokuvala (okungcono ipulasitiki). Kungcono ukuthi ungazami ukuhlanza nge-screwdriver evamile noma elinye ithuluzi lensimbi eqinile njengoba lokhu kungase kulimaze ingaphezulu lekepisi noma ikhanda.

Ngalokhu, singasiza ngebhulashi locingo elithambile, ithawula lephepha kanye nophethiloli wokukhipha. Indawo yokuxhumana kufanele ihlanzeke futhi ilingane.

ukususwa

ukuhlanza isivalo

Ngokuya ngemodeli yenjini, kwesinye isikhathi kungenzeka ukuthi kuthathelwe indawo i-spark plug o-rings. . Uma zigqokile, uwoyela ungangena ezisekelweni ze-spark plug, okubangela ukuthi uhlelo lokuthungela lungasebenzi. Kwamanye amamodeli enjini, lezi zimpawu zakhelwe kukhava yevalvu. Lokhu kusho ukuthi uma eyodwa yazo igugile futhi uwoyela uvuza, kuzofanele sibuyisele yonke ikepisi.

Ukubuka okujwayelekile okuvela phezulu

ucezu

Isinyathelo esilandelayo ukufaka i-gasket entsha . Kwesinye isikhathi ishubhu le-silicone motor sealant lingadingeka ukuze linikeze ukuvala okwengeziwe emakhoneni nasemaphethelweni agobile. Ukuthi iyadingeka kuncike kumenzi. Ngemva kokufaka i-gasket, qiniseka ukuthi izikhathi ezingu-3 ibambe kahle futhi ayisuki ngemva kokubekwa ekhanda.

Isinyathelo sokuqala ukufaka ikhava ye-cylinder head gasket bese uqinisa izikulufu ngendlela efanele. - ukuwela, kusukela phakathi nendawo. Lapho uqinisa amabhawodi ekhava ye-valve, i-torque efanele ibalulekile, ngakho-ke sizosebenzisa isikrufu se-torque lapha. I-torque yokuqinisa ivamise ukuba phakathi kuka-8 no-20 Nm.

Isinyathelo sokugcina siwukuhlanganisa zonke izingxenye esizihlukanise ekuqaleni. . Ngokushesha ngemva kokuqala injini, bheka amafutha enjini azovuza endaweni yekhava.

Indlela Yokushintsha I-Valve Evuzayo Yekhava Gasket