Avoiding the Damages due to Timing Belt Crash (Requires participation to start production or sale of technical knowledge)
CAUSES OF TIMING BELT FAILURE
1. Misalignment
Misalignment is one of the main causes of timing belt drive failure. Excessive or uneven tooth wear, belt tracking and tensile failure can all be attributed to misalignment.
2. Excessive load
If the timing belt teeth are shearing, excessive load is more than likely the cause. Tensile failure and even excessive tooth wear can also be caused by excessive load or shock loads, although the latter is less likely.
3. Under-tensioned Belt
Tooth skipping, also called ‘ratcheting’, is probably down to your belt being under-tensioned. Under-tensioning can also cause excessive or uneven tooth wear and excessive drive noise so use a tension gauge to set the correct tension on those timing belts!
4. Weak drive structure
If your drive is vibrating excessively or your timing belts are suffering from apparent belt stretch, you could have a weak drive structure.
5. Damaged or worn pulleys
Damaged or worn timing pulleys will substantially reduce belt life. Worn teeth will cause belt wear and/or damage. Nicks or gouges can cut the belt.
6. Debris in the timing pulley or drive
It’s the most overlooked, but debris can cause a multitude of problems for your timing belt & pulley. Dirt on the teeth can abrade the belt and oil can attack the belt materials. Debris can account for any of the above reasons for timing belt failure.
Components damage in effect of timing belt crash
A timing belt will usually break when you’re either starting or shutting down your engine. That’s simply because this is when the tension is greatest on the belt. If your engine is non-interference, usually you can get away with just installing a timing belt kit. If it’s an interference engine, there is almost certainly going to be some damage. How severe will depend on the engine speed at the time the belt is thrown. If it happens on shutdown or startup, you’ll probably end up with some bent valves and/or broken valve guides.
If it lets go at a high rpm, though, the valves will likely break off, bounce around the cylinders, bend the connecting rods and destroy the piston. Then, as the piston disintegrates, the connecting rods will begin to poke holes in the oil pan and the engine block, ultimately cutting the engine apart. If you think that sounds as though repairs won’t be possible, you’re right. Although, some of the cars have minimum damages in effect of timing belt crashing, but this is major error for most of automotive companies. These damages can be include head of piston, combustion chamber, valves kit and etc.
Suggested idea for new solution
We need to examine the effects of a broken timing belt on the engine components before presenting a new solution. The timing belt is responsible for synchronizing the opening and closing of valves (intake and exhaust) with the pistons. When the timing belt fails, this synchronization between the valves and pistons is disrupted, affecting the timing of their movements. It is important to note that the engine valves and pistons are separate units that work together to ensure the engine's proper functioning.
It is important to note that the timing belt and the solid-state units in an engine are closely related. If the timing belt is damaged, the engine valves may stop in an uncertain position while the piston unit continues to move due to the crankshaft. This can cause the head of the piston to come into contact with the head of the valve, resulting in the bending of the valves due to the additional force on the piston unit. Moreover, bending of the valves can also lead to damage to the head of the piston and the head of the cylinder. These damages can worsen if the driver tries to restart the engine after it has shut down for unknown reasons.
This design not only solves the problem permanently but also allows us to restart and turn on the engine again to change the timing belt at minimum time without opening the cylinder head and continue driving.
