Distribution. Better not underestimate the danger
Most car components wear out sequentially, and their failure does not immediately entail catastrophic consequences. Another thing with the timing drive.
The greatest threat to the engine occurs mainly when the camshafts or camshafts in the head are driven by an elastic toothed belt. This is a popular solution, cheaper and quieter than a chain, but unfortunately more unreliable. In many vehicles, belts are a hassle, requiring replacement after less than the manufacturer's recommended mileage. Model-specific mechanics are well aware of which vehicles require special timing control.
Better not to underestimate the danger. A worn belt can "jump" onto the teeth, resulting in skewed valve timing, or break or fall off the pulleys on which it operates (break effect). If the engine belongs to the so-called "collision" designs, in which pistons can collide with pistons, destruction of pistons and valves is possible in both cases. In the case of a “jump” of the bar, it all depends on how far it has moved from the correct position. A small shift can only result in smooth running and launch problems. In the event of a rupture or fall, the degree of damage depends mainly on the engine speed at which the failure occurred.
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Brake fluid replacement
Together with the belt, guides and tension rollers must be replaced; when replacing the chain, guides, mufflers and sometimes the tensioner are also replaced. Sometimes it is necessary to replace the sprockets that the belt or chain works with. In vehicles where the timing belt drives the coolant pump, the pump bearings should also be replaced. It is not worth saving on these elements, since with excessive wear they can fail and lead to breakage of the camshaft drive element.
See also: How to care for the battery?
