Iyo cylinder block ndiyo huru muviri weinjini. Inobatanidza humburumbira imwe neimwe uye crankcase kuita yakazara. Iyo furemu yekutsigira yekuisa iyo pisitoni, rezuva muteresi crankshaft, uye zvimwe zvikamu nezvimwe zvinhu.

Iyo tensioner pulley ndeye bhanhire tensioning chishandiso chinoshandiswa mune mota kufambisa sisitimu. Inonyanya kuve yakagadziriswa goko rakagadziriswa, ruoko runonetsa, vhiri muviri, torsion chitubu, chinotenderera chinotakura uye ruoko rwechitubu. Inogona kungoerekana yagadzirisa kusagadzikana zvichienderana nekuomeswa kwakasiyana kwebhanhire. Iko kusimba simba kunoita kuti hutachiwana system igadzikane, ive yakachengeteka uye yakavimbika.