M54B25 2.5L engine daga BMW - mafi muhimmanci bayanai a wuri guda
Abubuwa
Motoci masu sanye da injin M54B25 har yanzu suna kan titunan kasar Poland. Wannan injin mai nasara ne, wanda aka ƙididdige shi azaman naúrar tattalin arziƙi wanda ke ba da kyakkyawan aiki. Mun gabatar da mafi muhimmanci bayanai game da fasaha halaye, zane mafita da kuma gazawar rates na BMW kayayyakin.
M54B25 engine - fasaha bayanai
Model M54B25 ne mai 2.5 lita man fetur naúrar - daidai 2494 cm3. An halicce shi a cikin layi shida. Injin bugun bugun jini na dabi'a wakilin dangin M54 ne. An samar daga 2000 zuwa 2006 a Bavarian BMW shuka a Munich.
Toshe yana da diamita na 84,0 mm da bugun jini na 75,00 mm. Matsakaicin matsawa na ƙima shine 10,5: 1, matsakaicin ƙarfin naúrar shine 189 hp. a 6000 rpm, karfin juyi - 246 nm.
Hakanan yana da kyau a faɗi abin da ainihin alamomin raka'a ɗaya ke nufi. M54 yana nufin dangin injin, alamar B zuwa nau'in mai na injin, da 25 zuwa ainihin ƙarfinsa.
Wadanne inji aka sanya M54B25?
An yi amfani da naúrar daga 2000 zuwa 2006. An sanya injin BMW akan motoci kamar:
- BMW Z3 2.5i E36/7 (2000-2002);
- BMW 325i, 325xi, 325Ci (E46) (2000-2006 gg.);
- BMW 325ti (E46/5) (2000-2004 gg.);
- BMW 525i (E39) (2000-2004);
- BMW 525i, 525xi (E60/E61) (2003-2005 gg.);
- BMW X3 2.5i (E83) (2003-2006);
- BMW Z4 2.5i (E85) (2002-2005).
Tsarin tuƙi
Injin M54B25 ya dogara ne akan katafaren simintin silinda na aluminium da kuma simintin silinda da aka jefa. Shugaban Silinda, wanda kuma aka yi shi da aluminium, yana da sarkar DOHC biyu camshafts da kuma bawuloli huɗu a kowace silinda, don jimlar bawuloli 24.
Masu zanen naúrar wutar kuma sun yanke shawarar samar da shi tare da tsarin sarrafa Siemens MS 43 da Vanos dual m bawul lokaci don ci da sharar camshafts. Cikakken sunan wannan tsarin shine tsarin lokaci na bawul mai canzawa na BMW. Duk waɗannan ana haɗa su da ma'aunin lantarki wanda ba na injina ba da kuma nau'in shan DISA mai tsayi biyu.
A cikin yanayin injin M54 B25, an kuma yi amfani da tsarin kunna wuta mara rarraba tare da muryoyin wuta. Kowane ɗayansu an tsara shi daban don kowane Silinda da thermostat, aikin wanda ke sarrafa shi ta hanyar lantarki.
Toshe gine-gine
Wannan sinadari yana da silinda, kowanne daga cikinsu yana fallasa zuwa wurin sanyaya mai yawo. Madaidaicin simintin ƙarfe crankshaft yana jujjuyawa a cikin manyan ramukan da za a iya maye gurbinsu tare da raba gidaje. Ya kamata kuma a lura cewa M54B25 yana da manyan bearings guda bakwai.
Wani abin burgewa shi ne cewa jabun sandunan haɗin ƙarfe na ƙarfe suna amfani da igiyoyin da za a iya maye gurbinsu a gefen crankshaft, da kuma ƙaƙƙarfan bushing inda fil ɗin piston yake. Pistons da kansu zane ne na zobe uku tare da zoben matsawa biyu na sama da zobe na ƙasa guda ɗaya wanda ke goge mai. Fitar fistan, a gefe guda, suna riƙe matsayinsu ta hanyar amfani da dawafi.
murfin silinda
Don shugaban Silinda M54B25, kayan kera yana da mahimmanci. Gilashin aluminium yana samar da ma'auni masu kyau na sanyaya. Bugu da ƙari, an ƙirƙira shi bisa tsarin ƙirar ƙasa wanda ke ba da ƙarin iko da tattalin arziki. Godiya ce a gare shi cewa iskar da ake shigar da ita ta shiga cikin ɗakin ta gefe kuma ta fita daga ɗayan.
Hakanan matakan ƙira na musamman sun haifar da raguwar hayaniyar injin. Wannan ya shafi cirewar bawul, wanda aka tsara ta hanyar masu ɗaga na'ura mai ɗaukar nauyi. Hakanan yana kawar da buƙatar gyare-gyaren bawul na yau da kullun.
Aikin tuƙi - abin da za a nema?
Dangane da injin BMW M54B25, mafi yawan matsalolin da ake fuskanta sune na'urar famfo ruwa mara kyau da kuma na'urar thermostat mara kyau. Masu amfani kuma suna nuna lalacewar bawul ɗin DISA da karyewar hatimin VANOS. Rufin bawul da murfin famfon mai suma sukan gaza.
Shin injin M54B25 ya cancanci shawarar?
A lokacin farin ciki, M54B25 ya sami kyakkyawan bita. Ya kasance na farko a kai a kai a cikin jerin mafi kyawun injuna a cikin mujallar Ward. Tare da kulawa na yau da kullun da kuma amsa kan lokaci ga abubuwan da ke faruwa akai-akai, injin M54B25 zai yi aiki ba tare da gazawa ba na dubban kilomita.
