BMW M52TUB20, M52TUB25, M52TUB28 injuna

Abubuwa

Saukewa: M52TUB20
Saukewa: M52TUB25
Saukewa: M52TUB28

M52 jerin su ne BMW man fetur injuna tare da in-line sanyi na 6 cylinders da biyu camshafts (DOHC).

An samar da su daga 1994 zuwa 2000, amma a cikin 1998 akwai "sabuntawa na fasaha" (sabuntawa na fasaha), wanda aka gabatar da tsarin VANOS dual zuwa samfurori na yanzu, wanda ke tsara lokaci na bawuloli na shaye-shaye (tsarin rarraba gas biyu). A cikin jerin mafi kyau 10 Ward injuna na 1997, 1998,1999, 2000 da kuma 52 MXNUMX a kai a kai ya bayyana kuma bai daina matsayinsu.

Injunan jerin M52 sun sami shingen silinda na aluminum, sabanin M50, wanda aka yi da baƙin ƙarfe. A Arewacin Amirka, har yanzu ana sayar da motoci tare da waɗannan injuna a cikin shingen simintin ƙarfe. Matsakaicin iyakar gudu shine 6000 rpm, kuma mafi girman girma shine lita 2.8.

Da yake magana game da sabuntawar fasaha na 1998, akwai manyan ci gaba guda huɗu:

Tsarin lokaci na Vanos valve, wanda za'a tattauna dalla-dalla daga baya;
Kula da ma'aunin lantarki;
Bawul ɗin Cigaban Geometry Mai Girma Biyu (DISA);
Silinda da aka sake tsarawa.

Saukewa: M52TUB20

Wannan gyaggyarawa M52B20 ne, wanda, saboda haɓakar da aka samu, kamar sauran biyun, yana da ƙarin juzu'i a ƙananan revs (mafi girman juzu'i shine 700 rpm ƙasa). Silinda ya kai 80mm, bugun piston shine 66mm, kuma matsawa shine 11:1. Volume 1991 ku. cm, ikon 150 hp a 5900 rpm - ci gaba da tsararraki a cikin waɗannan halaye yana da hankali. Duk da haka, karfin juyi shine 190 N * m, kamar M52V20, amma a 3500 rpm.

Ana amfani da motoci:

BMW E36/7 Z3 2.0i
1998-2001 BMW 320i/320Ci (jiki E46)
1998-2001 BMW 520i (E39 jiki)

Saukewa: M52TUB25

bugun piston shine 75 mm, silinda diamita shine 84 mm. Ainihin samfurin B25 2.5-lita ya wuce wanda ya gabace shi a cikin iko - 168 hp. da 5500 rpm. The modified version, tare da irin wannan ikon halaye, samar da 245 N * m a 3500 rpm, yayin da B25 isa gare su a 4500 rpm.

Ana amfani da motoci:

1998-2000 E46323i, 323ci, 325i
1998-2000 E39523 XNUMXi
1998-2000 E36/7Z3 2.3i

Saukewa: M52TUB28

Matsar da injin shine lita 2.8, bugun piston shine 84 mm, diamita na Silinda shine 84 mm, crankshaft yana haɓaka bugun jini idan aka kwatanta da B25. Matsakaicin rabo 10.2, ikon 198 hp a 5500 rpm, karfin juyi - 280 N * m / 3500 rpm.

Matsaloli da rashin amfanin wannan ƙirar ICE gabaɗaya suna kama da M52B25. A saman jerin, yana da zafi mai zafi, wanda sau da yawa yakan haifar da rashin aiki na tsarin rarraba iskar gas. Maganin zafi fiye da kima shine yawanci tsaftace radiyo, duba famfo, thermostat, hular radiator. Matsala ta biyu ita ce cin mai fiye da yadda aka saba. A cikin BMW, wannan, a ka'ida, matsala ce ta gama gari, wacce ke da alaƙa da zoben piston mara sawa. Idan babu ci gaba a bangon silinda, ana iya maye gurbin zoben kawai kuma man ba zai bar fiye da yadda aka tsara ba. Na'ura mai daukar hoto a kan waɗannan injuna "kamar" zuwa coke, wanda ke haifar da kuskure.

M52tuB28

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Ana amfani da motoci:

1995-1999 E36328 328i, XNUMXis
1995-1998 E39528 XNUMXi
1995-1998 E38728 728i, XNUMXiL
1997-1998 E36/7Z3 2.8

Tsarin VANOS yana da matukar kula da aikin injin kuma a cikin yanayin juyin juya hali mara kyau, aiki mara daidaituwa a gaba ɗaya ko raguwar wutar lantarki, yana ƙarewa da yawa. Don warware shi, kuna buƙatar samun kayan gyaran tsarin.

Ƙwararrun ƙwanƙwasa da ba za a iya dogara da su ba da na'urori masu auna matsayi na camshaft sau da yawa yakan sa injin ya daina farawa, kodayake a waje komai yana da kyau. Ma'aunin zafi da sanyio yana ƙoƙarin zubewa, kuma gabaɗaya albarkatun sun yi ƙasa da na M50.

Daga cikin fa'idodin, ana iya lura cewa waɗannan injunan guda uku ba su da mahimmanci ga ingancin mai. Ba a ba da shawarar kunna su ba, da kuma siyan canji, tunda sun riga sun tsufa. Koyaya, ga waɗanda ke dagewa a cikin sha'awarsu, akwai wata hanyar da aka tabbatar - don shigar da nau'ikan abun ciki M50B25, camshafts daga S52B32 da kunna guntu. Irin wannan kunnawa zai ɗaga ƙarfin zuwa iyakar 250 hp. Wani zaɓi na bayyane shine m har zuwa lita 3, tare da siyan crankshaft M54B30 da yanke fistan ta 1.6 mm.

Shigar da injin turbin akan kowane ɗayan injunan da aka kwatanta shine cikakkiyar isasshiyar hanyar ƙara ƙarfi. Misali, M52B28 tare da injin Garrett da ingantaccen saitin sarrafawa zai samar da kusan 400 hp. tare da ƙungiyar piston stock.

Hanyoyin daidaitawa don M52V25 sun ɗan bambanta. A nan wajibi ne a saya, ban da nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in kifi) ya saya daga M50V25 "bron" da kuma crankshaft tare da sanduna masu haɗawa M52V28 da firmware. Camshafts da tsarin shaye-shaye sun fi kyau a saka S62 - ba tare da su ba, ba zai shuɗe lokacin kunnawa ba. Don haka, tare da ƙarar lita 2, za ku sami fiye da 200 hp.

Don tada iko a kan mafi karami 2-lita engine, za ka bukatar ko dai da gundura zuwa iyakar 2.6 lita ko turbine. Gajiya da kuma kunnawa, zai iya ba da 200 hp. Turbocharged tare da taimakon kayan aikin turbo na musamman a ƙarshe zai iya fitar da 250 hp. a 2 lita na aiki girma. Za a iya maye gurbin kit ɗin Garrett da Lysholm, wanda kuma zai ba da ƙarin ƙarfi a cikin iyaka guda.