Vavu chisindikizo. Vavu chivundikiro gasket - zizindikiro zowonongeka ndi m'malo.

Gasket yophimba ma valve (yomwe imadziwikanso kuti valve seal) imasindikiza kulumikizana pakati pa chivundikiro cha valve ndi mutu wa silinda. Kuwonongeka kwake ndi chimodzi mwazomwe zimayambitsa kutayikira kwamafuta a injini m'magalimoto akale. 

Zifukwa za kuwonongeka kwake ndi zotani? Tinafunsa katswiri za nkhaniyi. Tidawonanso njira zomwe zimakanika amagwiritsa ntchito "kuthandizira" gasket yomwe simasindikiza.

Kutuluka kwa mafuta a injini ndikowopsa kwambiri. Iwo akhoza kutsogolera ku kuthamanga kwachangu kapena kupanikizana kwa unit yoyendetsa . Makamaka pamene tikuchita ndi kasitomala amene amangoyang'ana pansi pa hood pamene chizindikiro mlingo wa mafuta pa dashboard galimoto kuyatsa.

Chivundikiro cha valve - ndi chiyani ndipo chimakonzedwa bwanji?

Chophimba cha valve chimapangidwira chitetezo cha camshafts, mavavu ndi zina zowonjezera za dongosolo logawa gasi, anaikidwa mu silinda mutu. Chivundikiro cha valve amasindikiza mgwirizano pakati pa chivundikiro cha valve ndi mutu wa silinda. Potero kuletsa kuwonongeka kwa mafuta a injini .

Zovala zophimba ma valve nthawi zambiri zimapangidwa ndi mphira wokhazikika. Magalimoto akale ankagwiritsa ntchito magalasi ophimba valavu.

Magalimoto akale ndi magalimoto ambiri amakono amagwiritsabe ntchito zophimba zitsulo zazitsulo, nthawi zambiri aluminiyamu. Pansipa pali gasket ya rabara (nthawi zambiri imakhala ndi gasket). Pamenepa, ngati kutayikira, chisindikizo chowonongeka chokha chimasinthidwa.

Koma m'zaka zaposachedwa, njira yatsopano yawonekera, yomwe imagwiritsidwa ntchito nthawi zambiri. izo pulasitiki valve chimakwirira (duroplast kapena thermoplastic, yokhala ndi fiberglass reinforcement). Chivundikiro cha valve gasket chimaphatikizidwa nawo. Chifukwa chake, ngati kutayikira, kumakhalabe kusinthira kapu yonse ndi gasket yophatikizika.

Zizindikiro za kuwonongeka kwa valve chivundikiro gasket

Zizindikiro zowoneka ndi maso - mafuta a injini pamwamba pa injini . Mu mawu colloquial, nthawi zambiri amati "injini ndi thukuta." Chizindikiro chachiwiri ndichoti, kutsika kwamafuta a injini pafupipafupi . Chachitatu - (mwina) mafuta oyaka moto , yomwe imadontha ndikutenthetsa pa chipika cha injini yotentha.

Mafuta akutuluka kuchokera ku chivundikiro cha valavu yowonongeka akhoza kufika pa lamba wa V-nthiti kapena lamba wa nthawi (pa magalimoto opanda lamba). Ndipo kotero kungayambitse kuwonongeka kwa lamba wa V-nthiti kapena lamba wa nthawi .

Zifukwa za chivundikiro cha valve kuvala gasket

Chifukwa chiyani mafuta akutuluka pansi pa chivundikiro cha valve gasket? Kodi valavu chivundikiro gasket kukalamba chimakhudza chiyani? Tinamufunsa katswiriyu

Stefan Wujcik, katswiri wa Dr Motor Automotive, wodziwika bwino wopanga ma gaskets agalimoto, kuphatikiza ma gaskets pansi pa chivundikiro chamutu cha silinda, adatifotokozera zifukwa zofunika kwambiri za ukalamba wa ma cylinder head gaskets. Izi:

• Kusokonezeka Zisindikizo zimangokalamba. Ngakhale zabwino kwambiri zopangidwa ndi opanga odziwika. Ndicho chifukwa chake kutayikira kumachitika kawirikawiri m'magalimoto omwe ali ndi zaka zingapo. Ngakhale omwe athandizidwa bwino.
• Otsika khalidwe - kulephera kumatha kuchitika kale ngati gasket yabwino kwambiri imagwiritsidwa ntchito m'galimoto. Izi zikhoza kukhala zolakwika za opanga ndi kugwiritsa ntchito gasket yabwino kwambiri pamsonkhano woyamba. Kapena locksmith amene amaika wotchipa kwambiri gasket pa kukonza ndi ... kulephera kwina kwa gasket, ngakhale patapita miyezi ingapo.
• Makina ozizirira olakwika – Chivundikiro cha valve gasket chingathenso kuvala mofulumira ngati makina ozizirira a galimoto ndi olakwika. Kutentha kwambiri kwa injini kumapangitsa kuti chivundikiro cha valve chiwonongeke. Chifukwa chingakhale, mwachitsanzo, kulephera kwa thermostat (kugwedeza pamalo otsekedwa), mulingo wozizira kwambiri, kulephera kwa mafani, kugwiritsa ntchito madzi m'malo mozizira.
• Mafuta ainjini   - kugwiritsa ntchito mafuta a injini otsika komanso kusintha kwamafuta pafupipafupi.
• Kuyipa kwa gawo loyendetsa - Injini yowonongeka imathandizira kuwonongeka kwa gasket pansi pa chivundikiro cha valve.

Kulephera kungayambitsidwenso ndi kuyika kosindikiza kolakwika . Pali maupangiri ambiri pa intaneti (kuphatikiza makanema ophunzirira) omwe amakuwonetsani pang'onopang'ono momwe mungakonzere gawo nokha. Makasitomala ena atha kukhala atasintha mopanda ntchito chivundikiro cha ma valve okha, zomwe zimayambitsa zolakwika zingapo zomwe zimagwirizanitsidwa ndi kusakwanira kokonzekera malo oyandikana nawo kapena kumangirira kosayenera kwa mabawuti okwera.

Kodi gasket iyi iyenera kusinthidwa liti?

Kutentha kwakukulu komwe kulipo mu injini kumakhala ndi zotsatira zoipa pa moyo wa chisindikizo. Pakapita nthawi, imakhala yolimba, imasweka ndipo imasiya kusindikiza bwino. . Izi zidzawonetseredwa ndi kutuluka kwa mafuta kuchokera kumalo ophimba ma valve, omwe amayamba kuyenda kudzera mu injini, ndipo mu injini zina zidzawonekeranso mu zitsime za spark plug. Maziko owonera zochitika zotere ndikuzindikira koyenera ndikutsimikiza ngati kutayikirako kumachokeradi kuchokera pachivundikiro cha valve.

Valve Cover Gasket Replacement ndi Vuto Losauka la Valve

Nthawi zina kukhazikitsa valavu yatsopano yophimba gasket sikuthandiza. Chifukwa chiyani? Kuchucha kungayambitsidwe ndi mavuto ndi kukwanira koyenera kwa chivundikiro cha valve pamwamba pa injini . Chophimba cha valve chikhoza kupindika, kupindika, kapena kuwonongeka kwina. Pankhaniyi, palibe chomwe chatsalira koma kugwiritsa ntchito chivundikiro chatsopano.

Amango nthawi zina amagwiritsa ntchito njira zina, koma kulankhula za kukonza akatswiri ndi zotsatira za nthawi yayitali kumakhala kovuta. Chimodzi mwa izo chikhoza kukhala kugwiritsa ntchito silicone yowonjezera kutentha, yomwe (mwachidziwitso) iyenera kubwezera kutayikira komwe kumachitika chifukwa cha chivundikiro chosakwanira pamwamba pa injini.

Kodi muyenera kukumbukira chiyani musanalowe m'malo mwa chivundikiro cha valve?

Nawa malangizo othandiza:

• Kusiyana pamitengo ya pad pakati pa zinthu zodziwika bwino ndi zotsika mtengo zomwe sizili ndi dzina ndizosavomerezeka. Ndikwabwino kusankha gasket yabwino yomwe ingatsimikizire kukhazikika komanso kukonzanso bwino.
• Amafunika chotsani zotsalira za gasket wakale yokhala ndi mutu wa silinda ndi chivundikiro cha valve.
• Zoyenera kugwiritsa ntchito zomangira zatsopano .
• Mangitsani mabawuti ophimba ma valve ndi wrench ya torque ndi nthawi yofunikira. Dongosolo lomwe zomangirazo zimangiriridwa ndizofunikanso.
• Pambuyo kusintha chisindikizo onjezerani mlingo wa mafuta a injini .

DIY: kusintha chisindikizo cha valve

Mukawona kutayikira kwamafuta mozungulira chivundikiro cha valve, mungafunike kusintha chivundikiro cha valve. Iyi si ntchito yovuta kwambiri yomwe tingathe kuchita ngati tili ndi zida zoyambira zokha. Mu bukhuli, muphunzira komwe chisindikizochi chili, nthawi yoti mulowe m'malo mwake, komanso momwe mungamalizire ntchito yonseyo.

Gawo loyamba ndikuyitanitsa gasket yoyenera . Ngati mukufuna kugula pa Allegro, fufuzani kupanga ndi chitsanzo cha galimoto yanu ndi mphamvu ya injini yanu, mwachitsanzo, "Mercedes 190 2.0 valve cover cover". Ngati, titawerenga malongosoledwe a mankhwalawa, sitikutsimikiza ngati gasket ingagwirizane ndi injini yathu, ndikofunikira kulumikizana ndi wogulitsa pazifukwa izi, kotero poyang'ana nambala ya VIN, tidzakhala otsimikiza kuti gasket ndiyoyenera yathu. injini.

Ndiye tiyeni timalize zida zonse ndi zothandizira zomwe zingathandize ndikuthandizira ntchito yonseyo. Zida monga:

• seti ya socket wrenches, hex keys, Torx wrenches yokhala ndi ratchet ndi zowonjezera (mwachitsanzo, YATO),
• wrench ya torque yokhala ndi mitundu yosiyanasiyana yomwe imalola kulimbitsa ndi torque ya 8 mpaka 20 Nm (mwachitsanzo, PROXXON),
• universal pliers,
• Phillips ndi flathead screwdrivers
• gasket/glue scraper, burashi yamawaya,
• thaulo la pepala kapena nsalu ndi mafuta owonjezera,
• mphira wa mphira.

Gawo lotsatira lidzakhala kutha kwa zigawo zomwe zimasokoneza kuchotsa chivundikiro cha valve . Malingana ndi chitsanzo ndi mtundu wa injini ndi chiwerengero cha masilinda, izi zidzakhala zovuta kwambiri (mu V-injini pali ma gaskets osachepera awiri). Chodziwika kwambiri ndi XNUMX-cylinder in-line unit. Monga lamulo, tidzafunika kuchotsa chivundikiro cha injini ya pulasitiki, mawaya a spark plug kapena ma coils (mu injini yamafuta), komanso mawaya ndi mapulagi kuchokera ku masensa ena. . Nthawi zina padzakhalanso kofunikira kuchotsa zochulukirapo komanso nyumba zosefera mpweya.

Mukachotsa mawaya kuchokera ku spark plugs kapena spark plugs kuchokera pazitsulo zoyatsira, tcherani khutu kumene waya akuchokera (tikukamba za dongosolo loyatsira). Kuti mukumbukire izi, ndi bwino kumamatira tepi yomatira ndi nambala pa mawaya aliwonse (mwachitsanzo, kuchokera kutsogolo kwa injini).

Pambuyo pochotsa zonse zomwe zidatilepheretsa kulowa, chotsatira ndikuchotsa chophimba cha valve . Musanachite izi, ndikofunikira kuwomba injini ndi mpweya wothinikizidwa kuti muwonetsetse kuti palibe chomwe chalowa mkati. Kapu nthawi zambiri imagwiridwa ndi mabawuti angapo a 8 kapena 10 mm kapena mtedza, choncho gwiritsani ntchito socket wrench 13 kapena 17. ndi mabowo momwe timayikamo zomangira. Ngati pali vuto kuchotsa chivundikiro cha valve, tikhoza kuchijambula ndi mallet. Tidzayesanso kudula gasket yakale ndi mpeni (pambuyo pa nthawi yayitali ikhoza kumamatira kumutu kapena chophimba).

Tsopano chotsani gasket wakale ndi zotsalira zake zonse . Tidzagwiritsa ntchito scraper yoyenera kusindikiza (makamaka pulasitiki). Ndibwino kuti musayese kuyeretsa ndi screwdriver nthawi zonse kapena chida china cholimba chachitsulo chifukwa izi zingawononge pamwamba pa kapu kapena mutu.

Pachifukwa ichi, titha kuthandiza ndi burashi yofewa ya waya, thaulo la pepala ndi mafuta otulutsa. Malo olumikizana nawo ayenera kukhala oyera komanso ofanana.

Kuchotsa

kuyeretsa chivindikiro

Kutengera mtundu wa injini, nthawi zina ndizotheka kusintha ma spark plug o-rings. . Ngati atavala, mafuta amatha kulowa muzitsulo za spark plug, zomwe zimapangitsa kuti makina oyatsira asamagwire bwino ntchito. Pamitundu ina ya injini, zisindikizo izi zimamangidwa mu chivundikiro cha valve. Izi zikutanthauza kuti ngati imodzi yavala ndipo mafuta akutuluka, tidzasintha kapu yonse.

Mawonedwe anthawi zonse kuchokera pamwamba

chidutswa

Chotsatira ndikuyika gasket yatsopano . Nthawi zina chubu la silicone motor sealant lingafunike kuti liperekenso kusindikiza kumakona ndi m'mbali zopindika. Kaya ikufunika zimadalira wopanga. Mukayika gasket, onetsetsani kuti nthawi 3 imagwira bwino ndipo sichikuchoka mutayikidwa pamutu.

Gawo lomaliza ndikuyika chivundikiro cha cylinder head gasket ndikumangitsa zomangira moyenerera. - kuwoloka, kuyambira pakati. Mukalimbitsa ma bolts ophimba ma valve, torque yoyenera ndiyofunikira, chifukwa chake tigwiritsa ntchito wrench ya torque pano. Kulimbitsa makokedwe nthawi zambiri kumakhala pakati pa 8 ndi 20 Nm.

Chomaliza ndikusonkhanitsa zigawo zonse zomwe tidazidula poyamba. . Mukangoyambitsa injini, yang'anani kuti mafuta a injini atayike kuchokera pachivundikirocho.

Momwe Mungasinthire Gasket Yovundikira Valve Yotuluka