Injin BMW M52B25

BMW M52 jerin ne na biyu ƙarni na BMW injuna da 24 bawuloli. Wannan ƙarni ya dogara ne akan abubuwan da aka yi amfani da su a cikin injunan M50 na baya.

M52B25 yana daya daga cikin na kowa raka'a na M52 jerin (shi kuma ya hada da model M52B20, M52B28, M52B24).

Ya fara bayyana a kasuwa a shekarar 1995.

Bayani da tarihin injin

M52B25 injunan layi ne mai silinda shida tare da camshafts guda biyu. Tsarin ƙasa na M52B25, idan aka kwatanta da M50TU, ya kasance daidai da haka, amma tubalin simintin ƙarfe an maye gurbinsa da aluminum mai haske mai yawa tare da murfin nikasil na musamman na silinda. Kuma silinda shugaban gasket (Silinda kai) a cikin M52B25 an yi multilayer.

Pistons da sanduna masu haɗawa suma sun canza idan aka kwatanta da samfuran M50 (sandan haɗin M52B25 anan yana da tsayin 140 mm, kuma tsayin piston shine 32,55 mm).

Har ila yau, an gabatar da tsarin ci gaba mai ci gaba da tsarin canjin lokaci na rarraba iskar gas a cikin M52B25 (an ba shi suna VINOS kuma daga baya an shigar da shi akan kusan dukkanin injunan BMW).

Nozzles a kan M52B25 sun cancanci ambaton musamman - aikinsu ya kasance 190 cc (cc - centimita cubic, wato santimita cubic).

A cikin wannan shekarar, injin ya ci gaba da ingantawa - sakamakon haka, motar ta bayyana a ƙarƙashin alamar M52TUB25 (TU - Ɗaukaka Fasaha). Daga cikin mahimman sabbin abubuwa na M52TUB25, yakamata a lura:

• na biyu ƙarin lokaci shifter a kan shaft shaft (Double-VANOS tsarin);
• ma'aunin lantarki;
• sabon camshafts (lokaci 244/228, daga 9 millimeters);
• inganta sandar haɗi da ƙungiyar piston;
• bayyanar nau'in nau'in ci na nau'in nau'in nau'in nau'in nau'i na DISA;
• canza tsarin sanyaya.

Gabaɗaya, ICE da aka sabunta ya zama ko da ƙasa da ƙarfi fiye da ainihin sigar M50B25 - fifikon ya kasance akan bangarori daban-daban.

Tun 2000 BMW M52B25 injuna fara maye gurbinsu da wani sabon 2,5 lita shida-Silinda model - M54B25. Daga qarshe, a shekarar 2001, samar da BMW M52B25 da aka dakatar da kuma taba ci gaba.

Manufacturer	Kamfanin Munich a Jamus
Shekarun saki	1995 zuwa 2001
Volume	2494 cubic santimita
Silinda Block Materials	Aluminum da Nikasil gami
Tsarin wutar lantarki	Mai shigowa
nau'in injin	Silinder shida, a cikin layi
Ƙarfin ƙarfi, a cikin doki/rpm	170/5500 (na duka iri)
Torque, a cikin Newton mita/rpm	245/3950 (na duka iri)
Halin aiki	+95 digiri Celsius
Rayuwar injin a aikace	Kimanin kilomita 250000
Piston bugun jini	75 mm
Silinda diamita	84 mm
Amfanin mai a kowane kilomita ɗari a cikin birni da kan babbar hanya	13 da 6,7 lita bi da bi
Adadin mai da ake buƙata	6,5 lita
Cin mai	Har zuwa lita 1 a kowace kilomita 1000
Matsayi masu goyan baya	Yuro-2 da kuma Yuro-3

Adadin wannan injin yana a gefen ɓangaren abubuwan sha (mafi daidai, a ƙarƙashinsa), kusan a cikin yanki tsakanin silinda na biyu da na uku. Idan kawai kuna buƙatar duba lambar, ana ba da shawarar yin amfani da walƙiya akan eriya ta telescopic. Idan kana buƙatar tsaftace ɗakin daga datti, to, ƙila za ka iya kwance akwatin tare da tace iska daga tashar iska.

Wadanne motoci aka girka

An shigar da babban sigar injin M52B25 akan:

• BM 523i E39;
• BMW Z3 2.5i Roadster;
• BMW 323i;
• BMW 323ti E36.

An shigar da sigar M52TUB25 akan:

• BM 523i E39;
• BMW 323i E46.

Matsaloli da rashin amfani na inji BMW M52B25

• Kamar raka'a na jerin M50 da suka gabata, injin M52B25 yana ƙoƙarin yin zafi, sakamakon wanda, a wani lokaci, shugaban Silinda na iya gazawa. Idan na'urar wutar lantarki ta riga ta kasance mai saurin zafi, mai motar motar ya kamata ya zubar da iska daga tsarin sanyaya, tsaftace radiyo, duba aikin thermostat da radiator cap.
• M52 jerin injuna suna da saurin kamuwa da cutar zoben piston, wanda ke haifar da karuwar yawan mai. Idan ganuwar Silinda na al'ada ne, to, don kawar da wannan rashin aiki, yana yiwuwa a yi ba tare da maye gurbin zobba ba. Lokacin da aka sa ganuwar Silinda, dole ne a ba da toshe ga hanyar hannun riga. Bugu da kari, ya kamata a duba bawul ɗin samun iska.
• Hakanan ana iya samun matsala kamar coking of hydraulic lifters. Saboda wannan, aikin silinda yana raguwa kuma sashin kula da lantarki yana kashe shi. Wato ana buƙatar mai motar da injin M52B25 don maye gurbin na'urorin hawan ruwa akan lokaci.
• Wani lahani na rashin aiki shine mai kunna wuta. Sau da yawa wannan yana faruwa ne saboda wata irin matsala a cikin kofin mai ko a cikin famfon mai.
• Juyawa RPM yayin da injin M52B25 ke gudana na iya haifar da lalacewa akan tsarin VANOS. Don gyara tsarin, a matsayin mai mulkin, wajibi ne a saya kayan gyara na musamman.
• A tsawon lokaci, fashe fashe na iya tasowa akan murfin bawul ɗin M52B25. A wannan yanayin, yana da kyau a canza waɗannan murfin.

Bugu da kari, matsaloli kamar gazawar crankshaft matsayi na'urori masu auna sigina (DPKV) da camshaft matsayi na'urori masu auna sigina (DPRV), zaren lalacewa ga Silinda shugaban kusoshi, asarar thermostat tightness ne mai yiwuwa. Har ila yau, ya kamata a tuna cewa ainihin sigar tana da matukar buƙata akan ingancin mai.

Wata matsala da za a iya ganowa lokacin nazarin halayen fasaha yana da girma (musamman ga injunan da ke da nisa mai mahimmanci) yawan man fetur. Mai sana'anta da kansa ya ba da shawarar yin amfani da samfuran mai - 0W-30, 5W-40, 0W-40, 5W-30, 10W-40.

Amincewa da kiyayewa

BMW M52B25 a shekarar 1998 masana sun bayyana shi a matsayin injiniya mafi kyau a Amurka. Domin shekaru hudu (1997, 1998, 1999 da kuma 2000), da M52 engine jerin da aka hada da Ward a cikin ranking na goma mafi kyau injuna na shekara.

A wani lokaci, juriyarsa, amincinsa da ƙarfinsa ya ba masana mamaki. Amma, kamar yadda aka ambata a baya, na karshe injuna M52B25 bar taron line a farkon XNUMXs.

Don haka, yanzu siyan M52B25 dole ne a aiwatar da hankali, bincika komai a hankali. Zaɓin da ya fi dacewa shine injin kwangila daga ƙasashen waje tare da albarkatu mai kyau. Yana da kyawawa cewa an cire shi daga mota ba tare da babban nisan miloli ba. Dangantakar da, wannan inji tsohon doki ne wanda ba shakka ba zai lalata furrows ba, amma a lokaci guda, ana iya samun ƙarin na'urori na zamani da na ci gaba akan siyarwa a yau.

Tare da kula da wannan injin, yanayin ya ninka biyu. Tare da wasu raguwa, M52B25 za a iya samun nasarar gyarawa, amma ba za a iya aiwatar da aikin silinda na silinda a Rasha ba. Gaskiyar ita ce, don irin wannan gyare-gyaren wajibi ne don mayar da murfin nicosil na ganuwar Silinda, kuma wannan kusan ba zai yiwu ba.

kunnawa

Don haɓaka ƙarfin injin M52B25 ta hanyar wucin gadi, dole ne ku fara siyan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan sanyi daga injin M50B25 iri ɗaya, camshafts tare da wani lokaci na 250/250 da ɗaga millimita goma, sannan aiwatar da gyaran guntu.

A sakamakon haka, zai yiwu a "matsi" daga cikin naúrar daga 210 zuwa 220. Har ila yau, akwai wata hanya, "makanikanci" don ƙara ƙarfin aiki da ƙarfin aiki.

Wannan hanya ta haɗa da shigar da kayan aikin bugun jini (abin da ake kira kit na sassa ta hanyar da za ku iya ƙara bugun bugun piston da kashi 10-15) a cikin shingen Silinda. A wannan yanayin, za ku buƙaci crankshaft, haɗa sanduna da firmware daga M52B28, yayin da pistons ya kamata a bar "yan ƙasa". Hakanan zai zama dole don samar da ci daga M50B25, da camshafts da shayewa daga S52B32. Idan ya cancanta, injin M52B25 shima ya dace da turbocharging - don wannan, mai motar dole ne ya sayi kayan turbo mai dacewa.