Most of the car owner’s manuals have not even mentioned the most important ones such as the radiator water hose or the engine cooling system (except in the case where they are heated on the engine). Other hoses, such as the steering hydraulic hose or the air conditioning hose, are usually checked as part of the routine service and maintenance program and when leaks are suspected.
In some engines, the timing belt also drives the water pump. Some repair shops recommend replacing the water pump and belt at the same time. This is justifiable because if the water pump breaks a few months after the timing belt, the repairman has to look at the engine again, disassemble the parts and change the cooling system, and for the few hours he spends on checking this work, He will get a significant salary. So if you want to not be surprised and confused, pay attention to changing the belts on time so that you don’t have to pay more later. The timing belt is a toothed rubber belt that allows the crankshaft to rotate around the valve stem. A timing belt is sometimes called a valve belt. The mill valve opens and closes the valves in a simultaneous movement with the pistons of the engine. If the timing belt breaks, the engine stops working and usually causes severe damage.
Car engine cooling system hoses usually last for several years. Although every part with a life of more than 10 years has the possibility of damage. Hoses wear out over time and in constant proximity to hot coolant, and the longer the life of the hose, the more likely it is to leak and cause the engine to overheat. Today, most belts are spiral-shaped, wrapped around the pulleys, and cause Various parts such as dynamo, air conditioning compressor, steering hydraulic pump or water pump are set in motion and are designed to last for several years.
The car technician determines the time to replace the belt, and it is up to the car owner to decide to replace it or to rely on the manufacturer’s schedule. Of course, it is better to consider the side of caution because if the belt breaks on the way, the car will stop and depending on the time and place this happens, you may have to wait for a long time for the parts and the serviceman.
Do not confuse this belt with the timing belt. The timing belt connects the crankshaft to the valve shaft, which controls the opening and closing of the valves. The timing belts are out of sight and hidden behind the frame. And because of more effort and complexity to replace, they are usually more expensive. Some vehicles have a timing chain instead of a belt, which has a longer life. Timing belts are usually replaced based on the mileage before changing their condition. In most cases, this distance is less than 100,000 km, but in some vehicles it can be 150,000 km or even more.