See Figures 1, 2, 3, 4, 5, 6, 7, 8 and 9
The 1.6L 16-valve and the 1.8L engines covered by this guide are interference motors. If the timing belt (1.6L) or chain (1.8L) breaks, internal damage to the engine is a very likely result.
The 1.3 and 1.6L engines covered by this guide utilize a timing belt to drive the camshaft from the crankshaft's turning motion and to maintain proper valve timing. Some manufacturer's schedule periodic timing belt replacement to assure optimum engine performance, to make sure the motorist is never stranded should the belt break (as the engine will stop instantly) and for some (such as the 1.6L 16-valve engine) to prevent the possibility of severe internal engine damage should the belt break.
Although the 1.3L and 1.6L 8-valve engines covered in this guide are not listed as interference motors (they are not listed by Suzuki as motors whose valves might contact the pistons if the camshaft was rotated separately from the crankshaft) the first 2 reasons for periodic replacement still apply.
Whether or not you decide to replace the belt, you would be wise to check it periodically to make sure it has not become damaged or worn. Suzuki recommends replacing the timing belts at least every 60,000 miles (96,000 km), and inspecting them every 30,000 miles (48,000 km) between replacements. Generally speaking, a severely damaged belt will show as engine performance would drop dramatically, but a damaged belt (which could give out suddenly) may not give as much warning. In general, any time the engine timing cover(s) is(are) removed you should inspect the belt for premature parting, severe cracks or missing teeth. Also, an access plug may be provided in the upper portion of the timing cover so that camshaft timing can be checked without cover removal. If timing is found to be off, cover removal and further belt inspection or replacement is necessary.
For timing belt cover and belt removal and installation, please refer to Engine & Engine Overhaul .