• . Ukushintshwa okuvamile kwesistimu yedrayivu yesikhathi
  

Uhlelo lokuhambisa isikhathi luyingxenye ebalulekile yesistimu yokusabalalisa umoya wenjini. Ixhunywe ku-crankshaft futhi ifaniswe nesilinganiso esithile sokudlulisa ukuze kuqinisekiswe ukunemba kwezikhathi zokuthatha kanye ne-exhaust. Imvamisa iqukethe izinto zokubeka isikhathi ezifana ne-tensioner, tensioner, idler, ibhande lesikhathi nokunye. Njengezinye izingxenye zezimoto, abakhiqizi bezimoto bacacisa ngokusobala ukuthi ukushintshwa okujwayelekile kohlelo lokushayela isikhathi kuthatha iminyaka emi-2 noma amakhilomitha angama-60,000. Ukulimala kwekhithi yesikhathi kungabangela imoto ukuthi iphuke ngesikhathi ushayela futhi, ezimeni ezimbi kakhulu, kubangele ukulimala kwenjini. Ngakho-ke, ukushintshwa okujwayelekile kohlelo lokudlulisa isikhathi akunakuzitshwa. Kumele ishintshwe uma imoto isihamba amakhilomitha angaphezu kuka-80,000.

• . Ukushintshwa okuphelele kwesistimu yedrayivu yesikhathi

Uhlelo lokudlulisa isikhathi njengohlelo oluphelele luqinisekisa ukusebenza okuvamile kwenjini, ngakho yonke isethi idinga ukushintshwa uma ishintshwa. Uma kushintshwa eyodwa kuphela yalezi zingxenye, ukusetshenziswa nokuphila kwengxenye endala kuzothinta ingxenye entsha. Ukwengeza, lapho ikhithi yesikhathi ishintshwa, imikhiqizo evela kumkhiqizi ofanayo kufanele isetshenziselwe ukuqinisekisa ukuthi ikhithi yesikhathi inedigri ephezulu yokufanisa, umphumela wokusetshenziswa ongcono kakhulu kanye nempilo ende kakhulu.