Isisiki Sebhulashi Sephethiloli Esinama-Stroke Ama-2

Indlela yokukhetha ukugcwalisa injini ngezicucu zamabhulashi zikaphethiloli

1. Uwoyela wezinjini ezinezinhlungu ezimbili

Injini enezitebhisi ezimbili isebenzisa ingxube kaphethiloli namafutha enjini njengophethiloli. Uphethiloli namafutha enjini kumele kuxutshwe ngokulinganayo ukuze kuvunyelwe ukuthi uwoyela wenjini uxutshwe ngokulinganayo kuphethiloli. Uma uwoyela omningi ungena kwisilinda ngesikhathi esithile, kuzokwenza kube nzima ukuthi uphethiloli uvuthe futhi kubangele ukuthi injini iyeke ukusebenza. Ngesikhathi esifanayo, uwoyela omningi ungabangela nokuthi ama-spark plugs nama-piston rings aqoqe ikhabhoni; Uma uwoyela umncane kakhulu, udonga lwesilinda alukwazi ukugcotshwa, okwandisa ukuguguleka, okuholela "ekudonsweni kwesilinda" futhi kubangele izingozi ezinkulu.

Isilinganiso samafutha axubile siwuwoyela wenjini okhethekile we-stroke ezimbili: uphethiloli = 1:25. Kunconywa uphethiloli onebanga elingu-90 # noma ngaphezulu, kanti u-93 # uyanconywa. Kusetshenziswa uwoyela wenjini we-stroke ezimbili, kanti uwoyela wenjini we-stroke ezine awuvunyelwe ngokuphelele.

Kunconywa ukusebenzisa uwoyela wenjini okhethekile onesilinganiso esingu-1:40 emahoreni okuqala angu-30 omshini omusha, bese usebenzisa isilinganiso esijwayelekile esingu-1:25 ngemva kwamahora angu-30. Akuvunyelwe ngokuphelele ukudlula u-1:25, ngaphandle kwalokho ukuhlushwa kuncane kakhulu futhi kungabangela umshini ukuthi udonse isilinda. Sicela ulandele ngokuqinile isitsha samafutha esinikezwe umshini ukuze ukhiphe uwoyela, futhi ungakhiphi uwoyela ngokunganaki ngokwezilinganiso. Uwoyela oxubile kufanele ulungiswe futhi usetshenziswe ngokushesha, futhi akuvunyelwe ngokuphelele ukusebenzisa uwoyela oxubile osekulungiswe isikhathi eside.

2. Uwoyela wezinjini ezine ezinyakazayo

Ungaqalisi ithangi likawoyela ngaphandle kokufaka uwoyela. Umsebenzi oyinhloko wamafutha ukugcoba izingxenye ezihambayo zenjini kaphethiloli, uzipholise futhi uzipholise, uzihlanze, futhi uvimbele ukugqwala. Ikhwalithi kanye nokusetshenziswa okufanele kwamafutha enjini akuthinti nje kuphela ukusebenza kanye nempilo yesevisi yezinjini kaphethiloli, kodwa futhi kuthinta nempilo yesevisi yemishini. Ngakho-ke, amazinga afanele kawoyela wenjini kufanele akhethwe ngokusekelwe ekushiseni okuzungezile kwenjini kaphethiloli.

Emazingeni okushisa aphansi, uwoyela wenjini kufanele ube nokugeleza okuhle, kanti emazingeni okushisa aphezulu, kufanele ube ne-kinematic viscosity efanele, okubaluleke kakhulu ezinjinini zikaphethiloli ezipholile emoyeni. Kodwa-ke, ngenxa yobukhulu obuncane benjini ye-four stroke ye-brush cutter kanye nomthamo olinganiselwe wethangi likawoyela, kanye nesivinini sokusebenza esiphezulu, kudinga izidingo eziphezulu zikawoyela. Akuvunyelwe ukusebenzisa uwoyela ophansi, futhi kunconywa ukusebenzisa uwoyela okhethekile emishinini yasengadini.

Faka uwoyela wenjini we-4T ofanele ethangini likawoyela, ubeke umshini phansi, bese izinga likawoyela kufanele lifinyelele echwebeni lokugcwalisa ithangi likawoyela ngaphandle kokugcwala. Hlola izinga likawoyela ngaphambi kokusebenza ngakunye ukuqinisekisa ukugcotshwa okuhle komshini.

Uphethiloli wenjini ye-four stroke uphethiloli omsulwa, onezinga elingu-90 # noma ngaphezulu. Kunconywa ukusebenzisa uphethiloli ongu-93 #. Ukugcwalisa kabusha izinjini ezishisayo akuvunyelwe, futhi ukubhema akuvunyelwe ngokuphelele ngesikhathi sokugcwalisa kabusha.

Ehlobo elishisayo, ngenxa yokushisa okuphezulu kanye nomfutho womoya ophansi, ukumelana nomoya kuvame ukwenzeka, futhi kuyadingeka ukuqinisa ukushabalalisa ukushisa kwenjini nokuvikela amapayipi kawoyela.

Ungasebenzisi uphethiloli onomsizi owengeziwe njengowoyela wokuhlanza ukuvimbela ubuthi be-ethyl lead. Ungasebenzisi uphethiloli ogcinwe isikhathi eside futhi osuwohlokile, ngaphandle kwalokho uzobangela ukubilisa okukhulu kanye nokufakwa kwekhabhoni. Iphuzu lokusha likaphethiloli liphansi kakhulu, liyavutha, liyaqhuma, futhi livame ukukhiqiza ugesi ongashintshi. Kumele lisetshenziswe ngokuhambisana nemithethonqubo futhi ligcinwe ngokuphephile.