BMW N42B20 engine - bayanai da kuma aiki

Injin N42B20 yana samarwa tun 2001 kuma an ƙare rarrabawa a cikin 2004. Babban makasudin gabatar da wannan rukunin shi ne maye gurbin tsoffin nau'ikan injuna, kamar M43B18, M43TU da M44B19. Mun gabatar da mahimman bayanai game da babur daga BMW.

injin N42B20 - bayanan fasaha

Samar da na'urar samar da wutar lantarki da aka yi ta hanyar kamfanin BMW Plant Hams Hall, wanda ya kasance daga 2001 zuwa 2004. Injin yana amfani da silinda huɗu tare da pistons guda huɗu kowanne a cikin tsarin DOHC. Ainihin ƙaurawar injin shine 1995 cc.

Naúrar in-line tana da diamita na kowane Silinda wanda ya kai 84 mm da bugun piston na 90 mm. Matsakaicin rabo 10: 1, ikon 143 hp ku 200 nm. Tsarin aiki na injin N42B20: 1-3-4-2.

Don ingantaccen amfani da injin, ana buƙatar mai 5W-30 da 5W-40. Bi da bi, ikon tanki na abu shine 4,25 l. Dole ne a canza shi kowane 10 12. km ko watanni XNUMX.

A cikin wadanne motoci aka saka na'urar BMW?

An shigar da injin N42B20 akan nau'ikan da suka shahara sosai ga duk masu sha'awar mota. Muna magana ne game da motoci BMW E46 318i, 318Ci da 318 Ti. Naúrar da ake nema ta dabi'a ta sami kyakkyawan bita kuma tana kan hanya a yau.

Rage nauyi da haɓaka ƙarfin ƙarfi - ta yaya aka cimma hakan?

Wannan rukunin yana amfani da toshe injin aluminum. Don wannan an ƙara bushings-baƙin ƙarfe. Wannan madadin bayani ne don tsarin da aka saba amfani dashi wanda aka yi gabaɗaya da simintin ƙarfe. Wannan haɗin ya haifar da ƙananan nauyi idan aka kwatanta da tsofaffin injunan layi-hudu na BMW.

Ana samun haɓaka ƙarfin juyi ta hanyar amfani da nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan geometry mai sarrafa lantarki. An kira tsarin DISA kuma an inganta matakan wutar lantarki a ƙananan sauri da sauri. Hakanan an ƙara zuwa wannan shine Bosch DME ME9.2 tsarin allurar mai.

Abubuwan yanke shawara na asali

A cikin shingen Silinda akwai sabon crankshaft gaba ɗaya tare da bugun jini na 90 mm, pistons da sanduna masu haɗawa. Injin N42B20 kuma yana da ma'auni na ma'auni iri ɗaya da injin M43TU.

Shugaban DOHC mai bawul 16, wanda kuma aka yi shi daga wannan kayan, yana zaune akan shingen aluminium. Ya kasance tsalle na fasaha na gaske, kamar yadda samfuran babura na baya suka yi amfani da kawunan SOHC 8-valve kawai. 

N42B20 kuma ya haɗa da Valvetronic m bawul ɗagawa da sarkar lokaci. Har ila yau, masu zanen kaya sun yanke shawarar shigar da camshafts guda biyu tare da tsarin lokaci mai canzawa - tsarin Double Vanos. 

Aiki Unit Direba - Mafi Yawan Matsaloli

Ɗaya daga cikin matsalolin babur da aka fi sani shine yawan zafi. Yawancin lokaci wannan ya faru ne saboda gurɓataccen radiyo. Mafi kyawun ma'aunin rigakafin shine tsaftacewa na yau da kullun. Har ila yau, ma'aunin zafi mai lalacewa zai iya zama dalilin - a nan mafita shine maye gurbin yau da kullum kowane 100 XNUMX. km. 

Hakanan ana amfani da hatimin Valve stem, suna daina aiki kuma, sakamakon haka, yawan man inji yana ƙaruwa. Hakanan akwai matsalolin da ke tattare da tsarin sanyaya. Injin N42B20 kuma na iya zama hayaniya - mafita ga rashin jin daɗi da ke tattare da hayaniya shine maye gurbin lokacin sarƙoƙi. Wannan ya kamata a yi a 100 km. 

Har ila yau, wajibi ne don saka idanu akan yanayin wutar lantarki na BREMI. Za su iya kasawa lokacin da suke maye gurbin tartsatsin wuta. A wannan yanayin, maye gurbin coils da EPA ƙonewa coils. Man injin da mai kera abin hawa ya ba da shawarar yana da mahimmanci don aikin babur da ya dace. Rashin yin haka zai buƙaci sake fasalin taro da maye gurbin tsarin Vanos. 

N42 B20 engine - ya cancanci zabar?

Motar 2.0 daga BMW naúrar nasara ce. Yana da tattalin arziki kuma daidaikun gyare-gyaren ba su da tsada - kasuwa yana da wadataccen kayan abinci, kuma injiniyoyi galibi sun san halayen injin sosai. Duk da wannan, sashin yana buƙatar dubawa akai-akai da kulawa da hankali.

Na'urar kuma ta dace da gyaran guntu. Bayan siyan abubuwan da suka dace, irin su shan iska mai sanyi, tsarin cirewar Cat Back da gyaran injin sarrafa injin, gyare-gyaren yana ba ku damar ƙara ƙarfin naúrar zuwa 160 hp. Don haka, injin N42B20 na iya zama mafita mai kyau.