Color-coded camshaft locking blocks allow fast visual sorting and selection. Fiat : Model years of Bravo, Linea, Grande Punto and Palio Weekend with 12V powertrains. When a vehicle reaches its timing belt service interval, or displays worn, cracked belts, noisy tensioners or worn idler pulleys, technicians lock the crankshaft and camshafts with this kit to hold factory timing positions.