Chisindikizo chamafuta a valve ndi chimodzi mwazinthu zofunika kwambiri za gulu la valavu ya injini, zomwe zimakumana ndi mafuta ndi injini yamafuta pa kutentha kwambiri.
Choncho, m'pofunika kugwiritsa ntchito zipangizo zotentha kwambiri komanso kukana mafuta, zomwe nthawi zambiri zimapangidwa ndi fluororubber.
Zisindikizo za tsinde la valavu zimapereka kuchuluka kwa metering kwa mafuta ku mawonekedwe a tsinde la ma valve a injini zoyatsira mkati kuti azipaka kalozera wa ma valve ndikuchepetsa kutulutsa kwa injini.
Amapezeka m'mainjini a dizilo ndi mafuta omwe ali ndi mphamvu komanso opanda mphamvu.
Kuphatikiza pa zisindikizo za tsinde wamba, zomwe timapereka zimaphatikizanso zisindikizo za valavu zamainjini omwe ali ndi zovuta zambiri pamapangidwewo,
chifukwa cha ma turbo charger kapena mabuleki otulutsa mpweya pamainjini ogulitsa.Yokhala ndi kapangidwe kake kakukangana kochepa,
zisindikizo izi zimawonjezera kutulutsa mpweya wabwino komanso kupititsa patsogolo magwiridwe antchito a injini polimbana ndi kupsinjika kwakukulu pamadoko a utsi ndi ma doko a injini.
Mosasamala mtundu wa injini, timapereka mitundu iwiri yokhazikika ya zisindikizo za valavu:
Chisindikizo chosaphatikizidwa: chimakwaniritsa ntchito yoyezera mafuta
Chisindikizo chophatikizika: kuphatikizanso mpando wamasika kuti musavale pamutu wa silinda
Valve stem imasindikiza FKM NBR BLACK GREEN
Kuyika ndi kusintha kwa valve mafuta chisindikizo
(1) Disassembly masitepe a valve stem mafuta chisindikizo:
① Chotsani matepi a camshaft ndi ma hydraulic, ndikuwasunga pansi.
Samalani kuti musasinthe ma tappets panthawi yogwira ntchito.Gwiritsani ntchito spark plug wrench 3122B kuchotsa plug spark,
sinthani pisitoni ya silinda yofananira pakatikati pakufa, ndipo potoza payipi yamagetsi VW653/3 mu dzenje la spark plug.
② Ikani chida choponderezera kasupe 3362 pamutu wa silinda wokhala ndi mabawuti, monga momwe tawonera pachithunzichi.
1. Sinthani ma valve oyenerera kuti akhale oyenerera, ndiyeno gwirizanitsani payipi yamagetsi ku mpweya wa compressor (ndi mpweya wa mpweya osachepera 600kPa).
Gwiritsani ntchito ndodo yapakati ndi ulusi kuti mupanikizike valavu pansi ndikuchotsa kasupe.
③ Chotsekera cha valve chikhoza kuchotsedwa pogogoda pang'onopang'ono pampando wa masika a valve.Gwiritsani ntchito chida 3364 kuti mutulutse chisindikizo chamafuta a valve, monga momwe chithunzi 2 chikusonyezera.
(2) Kuyika chisindikizo chamafuta a valve.
Ikani manja apulasitiki (A pachithunzi 3) pa tsinde la valavu kuti musawononge chisindikizo chatsopano cha mafuta.Ikani pang'onopang'ono mafuta a injini pamlomo wosindikizira mafuta.
Ikani chosindikizira chamafuta (B mu chithunzi 3) pa chida 3365 ndikuchikankhira pang'onopang'ono pa kalozera wa valve.Chikumbutso chapadera:
Musanayike mavavu olowera ndi kutulutsa, gawo la mafuta a injini liyenera kuyikidwa pa tsinde la valve.