Ukulungiswa kabusha kwenjini yezimoto ikakhulukazi kufaka phakathi ukushintshwa kwamavalvu, amaphistoni, ama-cylinder liner, noma amasilinda, amashafti okugaya, njll. Ngokwezinga lezitolo ezijwayelekile ze-4S, zidinga ukushintshwa ngamadivaysi asekelayo angu-4, okungukuthi, ama-pistons, amasongo e-piston, ama-valve, ama-valve oil seal, ama-valve guides, ama-crankshaft shingles, ama-shingles enduku yokuxhuma, amabhande esikhathi, amasondo aqinisayo.
Uma i-chain iphelelwe yisikhathi, kuyadingeka ukushintsha uchungechunge lwesikhathi, i-tensioner, ngaphezu komshini, umkhono we-cylinder, umshini wokugaya, umshini wokucindezela obandayo, kodwa futhi udinga ukufaka esikhundleni sephakheji yokulungisa, uphawu lwamafutha olugobile ngaphambili, uphawu lwamafutha olugobile emuva. , uphawu lwamafutha e-camshaft, ipompo yamafutha, i-valve yocwaningo eyengeziwe, njll., ngezinye izikhathi futhi kudingeka ithathe indawo yezesekeli zangaphandle ezifana ne-clutch disc, njll. Ngamafuphi, kuyadingeka ukufaka esikhundleni sezingxenye ezingaqinisekisi ukulungisa injini ukuqinisekisa ukuthi ukusebenza kwenjini.