Dib-u-habaynta mishiinka baabuurta inta badan waxaa ka mid ah beddelka valves, pistons, liners cylinders, ama cylinders, shafka wax lagu shiidaa, iwm. Marka loo eego heerka caadiga ah ee dukaamada 4S, waxay u baahan yihiin in lagu beddelo 4 qalab taageero ah, taas oo ah, pistons, piston rings. alwaaxyada, shaabada saliida waalka, hagayaasha valve, shingles crankshaft, isku xidhka shingles ul, suumanka waqtiga, giraangiraha kacsan.
Haddii silsiladda la waqti, waxaa lagama maarmaan ah in la beddelo silsiladda waqtiga, tensioner, marka lagu daro machining, sleeve dhululubada, shiidi shiidi, marinka cadaadiska qabow, laakiin sidoo kale u baahan tahay in la beddelo xirmo dib-u-hagaajin, shaabad saliid hore qaloocday, qalooca saliid dhabarka , camshaft oil seal, bamka saliidda, waalka cilmi-baarista dheeraadka ah, iwm, mararka qaarkood waxay sidoo kale u baahan yihiin in la beddelo qalabka dibadda sida clutch disc, iwm. engine si loo hubiyo waxqabadka engine ah.