Zai zama mai ban sha'awa da sanyi a faɗi cewa shekaru 20 da suka gabata, BMW ya ƙera hanyar da za ta murkushe rinjayen ajin Porsche's GT, ta hanyar amfani da wits ɗin su kawai da layin layi-shida, amma hakan ba zai kasance gaba ɗaya ba.Injin S54B32 kawai ya buga na biyu-fiddle zuwa 4.0L V8 da aka yi zanga-zangar, amma wannan wani labari ne.Maganar da ta fi gaskiya ita ce S54 ta ba da sanarwar ƙarshen layin don ihun, dangin M50/S50 na asali na BMW inline sixes.
Ya kasance shimfiɗar ƙira daga farkon farawa mai zafi na yau da kullun: ƙara ƙara da bugun jini zuwa tsohuwar injin kuma ƙara sabbin fasahar da ake samu a cikin nau'in VANOS Biyu (BMW yana magana don canza yanayin cam akan duka camshafts na sama biyu, mai iya daidaitawa. layin tsakiya na ci daga 70-130 ° da layin tsakiya daga 83-128 °).Ƙara ƙaramin ƙara a cikin matsawa (zuwa 11.5: 1), jikin magudanar ruwa, masu bin yatsa mai bin diddigin cam, VANOS biyu da aka ambata a baya, da kwanon mai mai jika-jika mai hawa biyu, da wannan babban fasali shida- Silinda ya zama wani abu na musamman a baya a cikin 2001 kuma har yanzu a yau.
Samun takamaiman fitarwa na 104 horsepower-per-liter da stratospheric 8,000-rpm redline ba a taɓa jin shi ba a waje da tsakiyar injinan Italiyan kujeru biyu ko masu kafa biyu na Japan.Ainihin kyawun wannan injin yana bayyana lokacin da kuka tsaga wannan dabbar.CNC-profiled ci masu gudu, CNC-milled konewa dakunan, manyan gami bawuloli, tagulla bawul jagororin, da tsaftataccen m gami da simintin gyaran kafa duk sun fi kamar a gida a kan tseren engine fiye da wani abu da ya fito daga samar line.
Wannan jeri na fasalin yana karantawa kamar zato ga mafi yawan sassaƙan gwal na gargajiya, masu tsaftar injin tuƙi na ƙarshe.Abin farin ciki, ga sauran mu, kasuwannin bayan gida suna ciyar da buƙatun mu waɗanda ke haɓaka ƙauna.Masu tsere, masu ja da tsere, da ƴan wasan junkis masu kai hari lokaci suna farin ciki da manyan kayan aikin turbo guda ɗaya ko ɗaukaka centrifugal.Haqiqa kyawun gyare-gyaren injin shine ladan da kuke girba, lokacin da waɗannan manyan injina masu inganci suka karɓi buri mara ɗabi'a da gyare-gyaren tallafi masu dacewa.Wannan yanki zai jagorance ku, matuƙar wutar lantarki, ta hanyar shirya ƙarshen ƙarshen don babban iko akan haɓakawa.
Da farko, za mu ƙwace mu bincika ainihin jigon mu.Oza na rigakafi shine fam na magani a nan.Sanya irin wannan lokaci da kuɗi a cikin simintin gyare-gyaren da ba zai yiwu ba zai zama babban kuskure.Yayin da S54 ba shi da suna don tsagewa, ɗaukar lokaci don tsaftacewa, duba gani, da gwajin matsa lamba jaket ɗin ruwa shine motsa jiki mai dacewa.
Abin da ba ku sani ba zai iya cutar da ku da walat ɗin ku.Yana da matukar mahimmanci don gwada simintin kan silinda don tabbatar da cewa ya dace don samun aiki mai tsada da tsada a gaba.
Da zarar kun sami damar kiran ainihin mai yiwuwa, lokaci yayi don tantance manufofin ku.Wannan ginin ya ƙunshi motar E36-chassis drift drift, ta amfani da haja ta BMW gajeriyar katanga, duk wanda ke ciyar da shi ta hanyar babban cajin Rotrex na centrifugal.Yin amfani da gajeriyar katangar hannun jari yana haifar da ƙaramin ruɗani kamar yadda piston na asali bai sami sauƙi don cikakken aikin VVT ba lokacin da manyan bawuloli da ake amfani da su a gefen ci.
Don wannan ginin mun zaɓi girman OEM (35mm) bawul ɗin ɗaukar bakin ciki na nitrided da 31.5mm (1mm oversize) Inconel shaye bawuloli;duka a cikin guda mai gadi tsagi hira iri-iri.Duka manyan VAC Motorsports-wanda aka samo Schrick "Tilastawa Induction" camshafts da yuwuwar sumbatar rev limiter a cikin tseren skid yana buƙatar ingantaccen sarrafa bawul.An yi amfani da saiti mai ɗorewa na manyan magudanan ruwa biyu daga Ayyukan Supertech tare da madaidaitan masu riƙe da nauyin gashin fuka-fuki.
S54 yana amfani da keɓaɓɓen-don-BMW, hannun roka mai bin yatsa wanda aka ɗora akan sandar rocker.Wannan yana ba da hanzarin buɗe bawul da haɓaka rabon rocker, amma, a cewar wasu, na iya zama abin lalacewa mai matsala.Mun ga nasara ta yin amfani da Jiyya na WPC akan masu bibiyar rocker OEM, kodayake wasu na iya ficewa don shafan DLC.
Tare da sassan da aka shimfida, yanzu za mu iya kusanci jerin hanyoyin da za mu rufe a cikin shagon injin.Ko da yake mai gudu na S54 yana da cikakken bayanin CNC, akwai ƙananan wurare don ingantawa, kamar bayanin wurin zama da diamita-maƙogwaron aljihu.Tashar ruwan shaye-shaye mai saurin gudu ce, rabe-rabe, venturi mai siffa D, wanda ake nufi don ɓata iskar gas da aka kashe ta zahiri.Ayyukan bayanin martaba, kamar daidaita mai gudu, zai sami riba a nan.Ƙwararren injiniyan injiniya na bawul don jagora har yanzu yana aiki don canja wurin zafi, hatimin bawul, da tsawon rai.Ya kamata a magance jagororin bawul ɗin S54s kamar yadda ake buƙata.
Bayan bayanan tashar tashar jiragen ruwa da sutura, muna neman sauƙaƙe alamun kayan aiki masu kaifi na ɗakunan konewa.Muna kuma tabbatar da daidaituwar juzu'i tare da burette.Babban hankali ya kamata a ba da fifiko ga wurin zama, idan aka ba da karuwar girman bawul akan shaye-shaye.Wurin zama na bawul yana amfani da dalilai guda biyu: don nutsar da zafi daga bawul cikin jaket na ruwa, da kuma samar da canjin tashar jiragen ruwa don ciyar da ɗakin konewa yanayin mu mai mahimmanci (kuma sau da yawa intercooled).
Za a iya bin bayanan wurin zama tare da yin zagon hannu don tabbatar da madaidaicin madaidaicin wurin zama-zuwa-bawul.Da zarar an duba aikin bawul ɗin kuma an gwada, mataki na gaba shine milling da kuma duba flange inda PCD na jujjuya yana murƙushe “shida da tara” don ƙarewa mai laushi da lebur.Binciken sashi na ƙarshe yana faruwa a wannan lokacin kafin buga wankin sassa.Da zarar muna da sassa masu tsabta kuma masu dacewa, muna benci-daidaita bawuloli.Muna bin ƙayyadaddun ƙirar cam ɗin kuma mun kammala taron ƙarshe tare da dubawa na ƙarshe.
Kafin mu yanke guntu guda ɗaya, muna buƙatar tsarawa da auna duk makasudin mu.Girman bawul ɗin shaye-shaye da 35mm da 31.5mm bi da bi.Manufar cin mu shine aƙalla kashi 85-kashi na 35mm - ko aƙalla diamita na makogwaro 29.75mm a cikin aljihu tsakanin wurin zama da tashar jiragen ruwa.Makasudin shaye-shaye yana kusa da kashi 90 na 31.5mm - ko 28.35mm - diamita na makogwaro.
Mutane da yawa na iya lura da yanayin kulawa da aka biya ga shaye-shaye a cikin wannan aikace-aikacen;bari wannan ya jaddada mahimmancinsa ga ingantaccen ingancin volumetric.Ka tuna cewa injiniyoyin da ke Munich sun shafe mafi yawan lokutan su akan sha.Mun dora kan Silinda a cikin injin zama na bawul na Serdi kuma muka yi amfani da abin da aka saka mai radiyo don nemo diamita na makogwaro.Muna buƙatar wannan ma'aunin kafin mu yi jigilar masu gudu.Yana ba mu ikon haɗa alamomin mashin ɗin hannu ko kabu da abin da aka saka makogwaro ya bari shima.
Yanke wurin zama na bincike yana taimakawa tsara aljihun makogwaro.Duk da yake cikakkiyar girman makogwaro har yanzu ana yin muhawara, babu wata muhawara da cewa inganta rabonta shine mabuɗin mahimmanci don haɓaka kwararar gabaɗaya.
Mataki na gaba baya buƙatar ruwan shimfidar wuri ko rubutu.An shimfida tashar jiragen ruwa na shan ruwa tare da tsagi na O-ring kuma shaye-shayen zai zama babban zane mai ban dariya don rubutu da wasan tashar jiragen ruwa.Don haka, gwaninta da hankali ƙwarewa ne guda biyu waɗanda ke ɓata wa mai niƙa mai tsayayye.
Mafi girman wuraren yin guntu su ne rabin watannin D-dimbin yawa na tashar shaye-shaye.Muna niƙa, daidaitawa, da ƙari ga siffar D.Babu fiye da kusan 2mm na cire kayan daga bangon tashar jiragen ruwa yakamata ya zama wadatuwa don yawancin aikace-aikacen ƙasa da matsananciyar 1,100 whp.Ƙaƙƙarfan gefuna da rarrabuwa a cikin abin sha suna karɓar santsi da santsi tare da juzu'in juzu'i 80-grit.
Da zarar an bayyana shi, shaye-shaye yana karɓar 80-grit sannan 120-grit ya biyo baya.Muna biye da wasu ƙetare-tsalle mai haske don murƙushe rubutu don sarrafa carbon.Gidan konewa yana karɓar tausa iri ɗaya kamar shaye-shaye, ƙwanƙwasa manyan tabo da burar kayan aiki don hana duk wani kunnawa ko walƙiya.
Ci gaban tashar shaye-shaye daga chippy zuwa m.Tashar ruwa mai shaye-shaye yana samun mafi yawan cire kayan aiki da sake fasalin aiki akan shugaban S54 wanda aka ƙaddara don ganin haɓakawa.
Bayyana kujerun bawul wani tsari ne da mutane da yawa ke la'akari da "zane-zane mai duhu."Ba komai bane illa kimiyyar lissafi da lissafi.Ƙaƙƙarfan ɗakin konewa na S54 na 33cc yana amfani da filogi na 12mm wanda akafi samu a cikin babura don dacewa da bawul ɗin da aka ambata.
A cikin mannewa tare da ƙaƙƙarfan jigo, duk da haka babban jigon iska, mun zaɓi duka 5-angle da radiused-seat cutters, samuwa daga Goodson Machine wadata.Duk masu yankan biyu sun ba mu wurin zama na 1mm mai kyau, mai girman digiri 45, wanda aka haɗa da yankan canji mai kyau, ciki da waje daga cikin kwano.
Idan kana amfani da bawuloli na titanium ko gudana matakan ƙarfin dawakai masu matuƙar ƙarfi, yakamata kayi la'akari da wurin zama gami da jan ƙarfe kamar Moldstar90 ko makamancin haka (kuyi hattara da carcinogenic, alloys beryllium).Mun kammala QC tare da aikin cinyar hannu, ta amfani da tsohuwar kera, fili mai kyau don bincika zoben tsoma baki.Hakanan yana ba da kyakkyawar fuskar bawul ɗin da aka karye don guje wa manyan canje-canje a cikin lalashin bawul.
Waɗannan hanyoyin sun yi fice kawai tare da jagororin bawul ɗin da aka share su zagaye kuma daidai yadda ya kamata.Ana magance wannan ta hanyar da ake buƙata, yawanci daga babban nisan nisan nisan da rashin kulawa.Jagoran maye gurbin da ya dace shine rukunin tagulla-manganese da ake samu daga Ayyukan Supertech.Ka tuna, a cikin wannan halin da ake ciki, concentricity sarki.
Ba tare da ɗimbin faifan flange da yawa a kan hanya ba, za mu iya miƙe-ƙeƙe da allon bayanin abubuwan ci da shaye-shaye da hannu.Yana bayar da santsi da lebur-surface don sabon gasket tsakanin shugaban Silinda da manifold.Shugaban Silinda sannan ya sami jujjuyawa da daidaita daidai kafin mu cire .002-.003 inch kowane wucewa akan injin Rottler tare da shigar PCD.Wannan yana barin bayan santsi, MLS- ko tagulla-kai gaskit abokantaka, tsakiyar 30s (Ra) gama.Zauren, gefuna na tashar jiragen ruwa, da gefen bene na waje ana lalata su tare da fayil ɗin juyi mai kitse kafin busa guntuwar.
Injin saman Rottler tare da kayan aikin lu'u-lu'u na polycrystalline yana barin ƙarshen madubi-bakan gizo saman saman silinda.
A wannan lokacin, an gama yin guntu kuma lokaci ya yi da za mu wanke wahalarmu da ɗimbin yawa.Tsaftace birki ko kaushi - ciyar da bambaro - da matsewar iska na iya cire tarkace daga wurare masu tsauri.Da zarar kun sami kwanciyar hankali game da waɗancan wurare masu maƙarƙashiya, lokaci ya yi da za ku gudanar da guntun aluminium ɗin mu ta cikin injin wanki.
Nau'ikan inji guda biyu suna ba da mafi inganci tsaftacewa: zafi mai zafi mai zafi mai zafi mai zafi mai zafi ko ultra-sonic submersion.A cikin yanayinmu shine tsohon wanda aikinsa yayi kama da na katuwar injin wanki akan steroids.Da zarar wani babban matsi, mai zafi, da ɗan wanki ya goge, kayan aikin simintin suna samun kurkurewar ruwa daga bututun masana'antu da bututun ƙarfe har sai ragowar sabulun ya tashi.Wadannan matakan suna biye da iska mai matsa lamba don bushe duk wani danshi da ya rage.
Tsaftacewa mai tsafta tare da cikakken duban gani kafin yin izgili mataki ne mai mahimmanci wanda bai kamata a manta da shi ba.
Sannan ana ɗaukar shugaban S54 zuwa benci mai tsabta tare da saman tebur na roba mai laushi don kare kyakkyawan niƙa daga karce.Wannan shi ne inda duka jagora da gogewa suka sa mu kan madaidaiciyar kunkuntar hanya ta mise en wurin daidaici.Mun gwammace mu shimfiɗa bawuloli, wuraren zama na bazara, maɓuɓɓugan ruwa, masu riƙewa, da makullan tuba guda ɗaya waɗanda aka shirya a kan benci kamar matakan matsayi a fagen fama.Lokacin da komai ya kasance a wurinsa, yana da sauƙin ganin abin da, idan wani abu, ya ɓace.
Anan zaku iya ganin bawuloli masu girman OEM tare da rufin nitride, tare da manyan bawul ɗin inconel mai girman girman 1mm.Makullin samun babban riba akan wannan aikace-aikacen musamman shine fitar da iskar gas da aka kashe cikin sauri da inganci.
Babban izgili na Silinda don saita share bawul shine mataki na gaba;Hakanan zaka iya daidaita bawuloli akan injin idan ya dace da kai.Mun ga ya rage jijiyar wuya a buga lallashin kafin alƙawarin manne kai gasket.A yayin wannan jerin matakai, muna amfani da maɓuɓɓugan bincike masu nauyi a madadin maɓuɓɓugan ruwa biyu masu girma don sauƙin izgili.Ka tuna cewa gazawar bin jagororin daidaitawa da suka dace na iya haɗa ku kona bawuloli, ƙaramin ƙarfi, bawul ɗin hayaniya, ko wasu sakamako masu ban kunya.
Schrick Camshafts ya yi kira ga bawul na .25mm (.010 inch) sha da shaye-shaye don amfani da niƙansu.BMW yana kira ga .18-.23mm (.007-.009 inch) da .28-.33mm (.011-.013 inch) yarda, a kan ci da ƙare bi da bi.A cikin dacewa da jigon babur, Wiseco ya yi 8.9mm OD shim kit don Husqvarna, KTM, da Husaberg wanda kuma ya dace da S54: P/N: VSK4.Kuna purists daga can yana iya zama mafi dacewa da BMW P/N: 11340031525. Idan ku (ko mashin ɗin ku) kun kasance a kan ƙwallon yayin yanke wurin zama, farawa a tsakiyar kewayon akan kauri na shim zai yi aiki da kyau a gare ku.
Madaidaicin juzu'i akan iyakoki na cam yana da mahimmanci don daidaita lashin bawul daidai.Yin hakan daga injin yana iya sauƙaƙa rayuwa ta jiki, kuma idan aka fuskanci matsala, ba ya buƙatar ka cire kan silinda daga toshe.
Tushen bawul ɗin suna karɓar lube ɗin taro na Torco akan mai tushe kuma ana sake duba su don daidaiton dacewa yayin da suke zamewa cikin jagororin bawul.Ana ɗora kujerun Valvespring a saman saman kafin maɓuɓɓugan ruwa kuma injin damfara mai huhu yana jingina cikin mai riƙe da titanium.Wannan yana faruwa sau 23 har sai an shigar da duk bawuloli, maɓuɓɓugan ruwa, masu riƙewa, da makullai.
Shigar da shaft na Rocker yana gaba, kuma ya kamata a lura cewa akan S54, shaft rocker shaft yana da ramin mai da ake nufi da ciyar da shi daga babban tashar mai a kai.Rashin daidaita wannan rami da kyau zai haifar da camshaft mai lebur da mabiya.Mabiyan yatsa wani batu ne na jayayya ga wasu da ke yawan shiga intanet;Zan guje wa duk wani jayayya ta hanyar nuna kawai cewa akwai nau'ikan nau'ikan mabiyan yatsa guda uku da aka yarda da su don amfani tare da manyan camshafts da babban aiki na RPM: Masu bin Schrick Performance DLC (P/N: SCH-CF-S54-DLC), DLC mai rufi OEM Mabiyan BMW (P/N: 11337833259, tuntuɓi Calico Coatings) ko WPC da aka kula da masu bin OEM BMW (P/N: 11337833259, tuntuɓi WPC Jiyya).
Waɗannan masu bin yatsa da aka yi wa WPC ɗin suna microtextured don riƙon mai kuma an yi musu ciki tare da gaurayawar karafa na jiyya na WPC.
Abubuwan Lubricants masu ƙorafi suna yin kyakkyawan camshaft mai ɗanɗano da mai mai ɗagawa;a tabbata a yi amfani da wannan kyauta ga lobes da fuskokin masu bin yatsa.Tabbatar da shafa man shafawa mai sauƙi zuwa saman camshaft masu ɗauke da mujallu kafin saka iyakoki da goro.Takaddun ƙayyadaddun ƙarfi da tsari sun rage naku, domin idan kuna yin haka, yakamata ku sami jagorar mai wannan bayanin.
Lissafin ya nuna cewa za mu sami 2-2.5 psi baya daga gyare-gyaren numfashi zuwa kan Silinda.A cikin shiri don ƙãra ingancin volumetric, mun sami manyan ɗigon haƙarƙari shida da aka yanke daga karfe sannan kuma an rufe zinc don juriya.
A ƙarshe, firikwensin MAP ya nuna ƙaƙƙarfan haɓakar psi 3, yana haifar da busa Rotrex zuwa kololuwa tsakanin 14.5 da 17 psi, dangane da yanayin yau da kullun.tafiye-tafiye zuwa kalkuleta mai saurin motsi na Rotrex Impeller ya nuna muna iya ɗan wuce gona da iri na injin mu na C38-92.Haɓakawa na numfashi haɗe tare da babban abin jan hankali ya haifar da ribar 156whp da 119 lb-ft na juzu'i.
Akwai ribar dawakai da yawa da za a iya samu a yawancin injunan samarwa, har ma da waɗanda ake ganin sun fi rikitarwa ko tsada.Fasaha ta gaskiya ita ce gano bakin kofa na raguwar dawowa a kowane tsarin, kafin saduwa da bangon tare da kashe lokaci da kuɗi.Ina fatan komawa ga wannan batu na iska da kuma tilasta shigar da shi a cikin mahallin layin layi na zamani a nan gaba.Lokacin da lokacin ya zo, zai kasance tare da ƙarin bayanai don raba tare da ku.
Ingantacciyar numfashi yana kawo manyan dawakai.Wannan shine ingantacciyar ingantacciyar wutar lantarki don ɗan ƙara haɓakawa da ingantaccen kan silinda.
Gina wasiƙar ku ta al'ada tare da abubuwan da kuke so daga Turnology, kai tsaye zuwa akwatin saƙon saƙo na ku, cikakkiyar KYAUTA!
Mun yi alƙawarin ba za mu yi amfani da adireshin imel ɗin ku don komai ba sai keɓancewar ɗaukakawa daga Cibiyar Sadarwar Taimako ta atomatik.
Lokacin aikawa: Juni-12-2020