Yuav ua li cas mus txo tus nqi ntawm engine overhaul?

"Cav overhaul" lo lus rau txhua txhua tsav tsheb tsis nyuaj li ib tug tuag kab lus tau hnov tias, cia li muaj txoj cai rau lub caij nplooj zeeg mus rau hauv tag kev cia siab. Tab sis yog nws txaus ntshai? Nyob rau hauv qhov tseeb, lub cav overhaul yuav ua tau ho pheej yig dua, tshwj xeeb tshaj yog rau cov kim tsheb. Tus taw tes yog hais tias lub cav tej yam uas lub tsheb - nws yog, nyob rau hauv qhov tseeb, cia li hlau, thiab, tsis muaj teeb meem nyuaj npaum li cas nws yuav, lawv yog cov tag nrho zoo heev. Tag nrho cov muaj pistons, piston rings, crankshaft. Ntawm cov hoob kawm, ib co loj li qub, nyob rau hauv ib co - lub camshafts, lub tog raj kheej, tab sis tag nrho lawv khiav lag luam rau cov hauv paus ntsiab lus ntawm cov plaub strokes, uas ua rau lawv yuav luag zoo tib yam.

Txoj kev overhaul ntawm lub engine, tshwj xeeb tshaj yog lub ntsiab lus ntawm uas, rau Piv txwv li, rau lub German-ua tsheb ntau ntau lub sij hawm ntau tshaj rau lwm hom ntawm lub tsheb uas ua lub teb chaws. Tab sis tsis txhob hnov qab tias rau lub cov neeg kho tshuab ua hauj lwm muaj peev xwm kuj yuav ib tug dlej diav rawg.

Kho Vaz cav yuav tsum nqa tawm ntawm ib tug chav nres tsheb, nws yog txaus los mus Tshuag yooj yim txheej ntawm cov cuab yeej, cov uas yuav tsum tau ib tug roj burner, txij thaum lub piston pin mus rau lub sab sauv txuas pas nrig yog tso rau ntawm ib tug kub ntawm 750-800 degrees.

Ua ntej ntawm tag nrho cov, peb yuav tsum nco ntsoov tias lub engine overhaul yuav nws ua tiav disassembly, li ntawd, raws sij hawm yuav tsum tau saib xyuas huv chaw ua hauj lwm, ua hauj lwm ua tau zoo dua nyob rau hauv cov uas raug tshem tawm engine tsis muaj attachments. Tsis tas li ntawd, koj yuav tsum Tshuag li ib tug khoom nyiaj ntawm kerosene yuav tsum tau "da dej" rau shafts, raws li zoo raws li lwm yam lus.

Yog hais tias lub cav no muab tshem tawm, ces tus ua hauj lwm yuav tsum tau muab faib ua peb qhov chaw: hauv lub tog raj kheej lub taub hau, lub tsev nws tus kheej, raws li zoo raws li lub lubrication system. Thiab tam sim no - nyob rau hauv kev txiav txim thiab tshaj.

Ua ntej koj yuav mus ua kom tawm txhua yam nyob rau hauv kom meej, tab sis nws yog ib nqi nco ntsoov hais tias ib tug valve mechanism uas tsis tau hloov, yuav tsum muab ntsia nyob rau hauv tib yam li hais tias yog. Lub qub, tom qab hloov thiab hloov ntawm cov phau ntawv tes tsho yuav tsum tau lapped ntawm lapping pastes. Lub camshaft (los yog shafts, yog hais tias muaj yog ob tug los yog ntau tshaj) tsim nyog nkag siab micrometer thiab yog hais tias muaj yog hloov los ntawm cov cai, yuav tsum tau hloov. Nws tseem yog tsim nyog rau them sai sai rau lawv them nyiaj yug, raws li lawv feem ntau yog ua los ntawm cam khwb cia txhuas (es mos cov ntaub ntawv uas muaj ib tug sab zog).

Tam sim no ib tug me ntsis txog cov cav thaiv. Ntawm no kho yog tsuas yog yuav tsum tau hloov. Ntawm cov hoob kawm, yog tias koj muaj ib lub tsev tshuab rau boring thiab honing ntawm tus kheej kheej, tag nrho cov ua hauj lwm koj yuav tau ua raws li lawv tus kheej, tab sis cov neeg zoo li ntau heev ob peb. Yog li ntawd, cov kev thaiv nws tus kheej yog muab rau ib tug tshwj xeeb rhiav qhov twg tshwj xeeb ua hauj lwm.

Tom qab nws rov los, nws yuav nasechen pistons chav kawm ntawv, uas yuav tsum tau tos. Rau txhua chav kawm ntawv nws muaj nws tus kheej cov chav kawm ntawv ntawm piston pins thiab piston rings. set qhov ceeb thawj rau txhua tog raj kheej yuav tsum tob yuav zoo tib yam, tiam sis qhov yuam cai nyob rau hauv 2 grams.

Mus tom ntej. Tom ntej no rau hauv daim ntawv lubrication system. engine overhaul thiab kho ntawm txoj kev no system, vim hais tias nws yog lub luag hauj lwm rau txoj kev ruaj ntseg thiab durability ntawm qhov chaw. Ntawm no, dua, peb xav tau ib tug micrometer los mus txiav txim seb tus crankshaft txhua hnub sib tsoo yuav tsum tau. Yog hais tias yog li ntawd, ces peb yuav tsum ua tib yam li nrog lub tsev. Yog hais tias tsis - koj tsuas muaj mus hloov lub pawm no ntau npau. Lawv loj feem ntau yog qhia nyob rau hauv lub kho ntawm lub puab tsaig balances. Yog hais tias loj yog tsis sau tseg qhia, lub ncauj tsev menyuam yeej tsis polished, ces nws ua raws li cov nominal tus nqi.

Tom qab tag nrho cov muas tau koom ua ke, raws li zoo raws li cov kev hloov ntawm consumable kua, thiab lim ntsiab. Ua ntej mus sib hais mus dhia yog pom zoo kom hliv roj rau hauv cov roj lim thiab tig lub crankshaft los ntawm txhais tes. Nws li nram no los ntawm lub foregoing uas lub cav overhaul nrog lawv txhais tes - nws yog tsis yog li ntawd phem, vim hais tias peb lub sij hawm yog tsis yooj yim mus nrhiav tej phau ntawv.