M52B20 engine - nā hiʻohiʻona ʻāpana mai BMW!

ʻAʻole haʻalele ka mīkini M52B20 i nā hale kūʻai hana mai 2000. Ua pani ʻia e ke ʻano M54. Ua hoʻomohala ʻia ka ʻāpana kiʻekiʻe ma ʻekolu hoʻololi. I loko o nā makahiki o ke kūʻai aku, ua hoʻomaikaʻi hou ʻia ka kaʻa. Hāʻawi mākou iā ʻoe i ka nūhou nui e pili ana i kēia kaʻa!

M52B20 engine - ʻikepili ʻenehana

ʻO ka mea kanu i puka mai ai nā mīkini M52B20 ʻo ia ka mea kanu Bavarian Plant Group, nona ka BMW, e hana ana mai 1992 a aia ma Munich. E like me ka mea i ʻōlelo ʻia ma mua, ua hana ʻia ka mana mai 1994 a 2000. 

ʻO ka M52B20 he ʻenekini ʻaila ʻeono-cylinder me ʻehā kiwi no kēlā me kēia cylinder i ka ʻōnaehana DOHC. I ka manawa like, he 80 mm ke anawaena o ka piston, a he 66 mm kona hahau. I ka huli ʻana, ʻo 1991 cc ka nui o ka hana.

ʻO kēia 2.0-lita maʻamau aspirated ʻehā-stroke engine he 11: 1 hoʻohālikelike ʻia a hoʻomohala i 148 hp. No ka hoʻohana ʻana, e hoʻohana i ka aila 0W-30, 0W-40, 5W-30 a i ʻole 5W-40 a hoʻololi i kēlā me kēia 10-12 km. km a i ʻole kēlā me kēia 6.5 mahina. Loaʻa i ka pahu waiwai he XNUMX lita.

Nā hiʻohiʻona o nā kaʻa i kau ʻia ai ka ʻenekini

Na ka mīkini M52B20 i hoʻoikaika i ka pūʻulu ʻekolu o E36 a me ka pūʻulu ʻelima E39. Ua hoʻohana pū nā mea ʻenekini BMW i kēia hui i nā kaʻa E46 mai ka hopena o ka makahiki 90, a ua ʻike pū ʻia ka mīkini ma ka E38 7 Series a me E36/E37 Z3.

Hoʻolālā kalaiwa

No ka MX series ka 52-lita inline six-cylinder engine. No kēia kumu, nui nā mea like i ka hoʻolālā ma waena o kēia kükohu a me ka M52B24, M52B25, M52B28 a me S52B32. Ua pani ka poloka M52B20 i ke kumu hoʻohālike M50B20.

Ua hoʻoholo nā mea hoʻolālā BMW e hoʻohana i kahi pahu pahu alumini. Ua hoʻohana pū ʻia kēia mea e hana i ke poʻo DOHC 32-valve. Hoʻohālikelike ʻia i ka ʻano ʻano M50B20, hoʻohana pū ʻia nā pistons hou a me 145 mm lōʻihi hoʻohui. 

Hoʻokomo pū ʻia nā mea ʻenekini i kahi ʻōnaehana manawa valve variable VANOS ma ka camshaft intake, a me kahi manifold intake maʻalahi, i hana ʻia me ka plastic. He 154cc wahie injectors ka engine.

Pehea e hoʻomaikaʻi ai i ka pale ʻana o nā cylinder liners?

I ka hihia o ka M52B20, ua hoʻopili ʻia kahi papa o Nikasil i nā cylinder liners. Aia ka uhi i kahi papa electrophoretically lipophilic o ka nickel a me ka silika carbide. ʻO ka hoʻohana ʻana i hopena i ka lōʻihi o nā ʻāpana i hoʻohana ʻia, e hoʻohālikelike ʻia me nā mea hao a i ʻole chromium.

Nā hoʻonā hou i ka makahiki 1998 - pehea i kūkulu ʻia ai ka hoʻolālā o ke kaʻa?

ʻEhā mau makahiki ma hope o ke kūʻai aku ʻana o ka powertrain, ua hoʻoholo ʻo BMW e hana hou i nā hana e hoʻomaikaʻi ai i ka hoʻolālā. Hoʻohui ʻia nā laina hao i hoʻohui ʻia i ka pahu pahu alumini. Eia kekahi, ua kūkulu hou ʻia nā koʻokoʻo hoʻohui, nā pistons a me ka ʻōnaehana hoʻomaha.

Ua hoʻohui pū ʻia kahi ʻōnaehana Double-VANOS, kahi hoʻololi hoʻololi geometry intake manifold a me kahi kino throttle uila. ʻO 9,0 / 9,0 mm ka hoʻokiʻekiʻe ʻana o ka valve, a ua kapa ʻia ka mana mana hou ʻo M52TUB20. I ka makahiki 2000, ua hoʻololi ʻia e kahi hiʻohiʻona mai ka M54 series - ka M2,2B54 ʻāpana me ka nui o 22 lita.

ʻO ka hana a me nā pilikia maʻamau

ʻO nā hana ʻino maʻamau ʻo ka radiator a me ka leak tank hoʻonui. Hoʻopiʻi pū nā mea hoʻohana o nā kaʻa me ka M52B20 e pili ana i kahi paila wai pilikia a me ka hana ʻole ʻole, ʻo ia ka mea maʻamau e kahi kīwaha mana hewa. Aia kekahi pilikia o ka uhi valve a me ka ʻaila ʻaila, a me ka haki ʻana i nā pahu hoʻomaha pālua.

He aha kāu e nānā ai i ke koho ʻana i kahi mīkini M52B20?

Pono e ʻike ma aneʻi ʻo nā mīkini M52B20 he mau ʻāpana kahiko loa - ʻo ka mea hope ma mua o 20 mau makahiki. No kēia kumu, ʻo kēlā me kēia o lākou he mileage kiʻekiʻe. ʻO ka mea nui i kēlā manawa, ʻo ia ka nānā kikoʻī kikoʻī a me ka ʻike ʻana i nā ʻāpana kahiko loa. 

ʻO ka mea nui ke kūlana maikaʻi o ka ʻōnaehana kākoʻo ʻenekini. He ʻōnaehana hoʻoluʻu kēia me ka pā wai, radiator a me ka pahu hoʻonui. ʻO kēia mau ʻāpana ka mea maʻalahi loa i ka hāʻule. No laila, ma mua o ke kūʻai ʻana i kaʻa, pono ʻoe e nānā i kā lākou lawelawe.

Ma ka ʻaoʻao ʻē aʻe, hiki i nā mea i loko e like me nā valves, chain, connecting rods, cranks a me nā sila hiki ke hana me ka pilikia ʻole me ka ʻoi aku o 200 km o ka hoʻokele. km. Ma ka hoʻokaʻawale ʻana i kahi kālā no ka hoʻoponopono mua ʻana a me ka lawe ʻana i ka ʻāpana i kahi kūlana ʻenehana maikaʻi loa, e uku ʻo BMW M52B20 iā ʻoe me ka hana maikaʻi - ʻoiai kona mau makahiki.