Bent Valves and Other Common Issues After a Timing Belt Snaps

Ignoring your synchronous belt can be expensive. Timing belts do not usually buckle, but if they occur, it can cause piston damage, damage to the cylinder head, and damage to the engine valve.

Maybe when you think about your engine, you think about valves and pistons, but you do not think about what they keep them in good working condition. Let's clarify. There is nothing important except the timing belt. It drives the camshaft, which is why the valves are synchronized while the crankshaft controls the piston. Your timing belt tells you when to move up and down the piston and when the valve opens and closes

Timing belts usually do not emit a lot of warnings when trying to disturb - they may click or click or suddenly break. However, more generally, the damage is caused by the wear of the timing belt. You can perform a visual inspection - make sure that there are cracks, glass, missing teeth or oil. Or you can ask the mechanic to check the belt. Most automobile manufacturers also recommend exchanging timing belt replacement as part of your daily maintenance and exchanging it every 60,000 miles. Some belts can be up to 100,000 miles. If you have any questions, please check the user manual or consult your dealer or mechanic.

The degree of damage caused by damage to the timing belt varies depending on the type of engine of the car. The undisturbed engine will provide clearance between the valve and the piston so that if the timing belt breaks it may result in bending the valve, you may have to recreate your cylinder head, But the engine is unlikely to be destroyed

However, when the engine is clogged (about 70% of the vehicles on the road today have this type of engine), the pistons and valves move in the cylinder instead of moving at the same time. Pistons and valves "own" cylinders at different times. However, that is intact. "Owned" interval is less than 1 second. If the time is off, you can not stop the piston and cylinder from colliding within 1 second. This causes the rod to drop off and the hole in the engine block starts to pierce. After all, the engine is only half open, there is no way to fix it.

It is found that catastrophic results occur when ignoring the timing belt that damage to the engine valve and piston, curved valve, cylinder head rebuilding or replacement is required, and furthermore the entire engine may be damaged It was. If you do not want to see these dollar signs do not match, check the timing belt periodically and have them repair them on time.

The above explanation is for reference only and you need to verify it individually. For details, please see Terms of Service.

A curved valve is usually the result of the most intense collision between the valve and the piston. The reason here is that the timing chain or belt breakage, weak or broken valve springs, engine overload, valve sticking (insufficient guide clearance or lubrication, overheating, etc.), and poor valve to piston Clearance (valve lift too large, valve) Release too large (not getting deep into piston, wrong piston, deck not high enough, too much head grinding etc). The seal controls the amount of oil that lubricates the guide. The positive seal stays on the guide and scrapes off oil from the stem like a scraper, so it provides maximum oil control. Positive seals are used in most overhead cam engines, as more oil flow needs to be controlled within the head. On the other hand, since the umbrella and the O-ring baffle seal move up and down with the valve, more oil can be put in the rail.

The most common failure of the valve is due to bending and breakage due to contact with the piston. Valve contacting the top of the piston is caused by erroneous engine synchronization due to timing chain / belt breakage and improper installation of new belt and chain. If you think that the engine has a bent valve or a damaged valve, it is important not to start the engine. This is due to the possibility of serious damage to the cylinder head, piston, cylinder bore. Another common type of valve failure is a valve combustion or combustion valve. Basically this is caused by combustion gas escaping between the valve and the valve seat without proper sealing. The hot combustion gases pass through the valve and the valve starts burning off the end of the valve. Normally, this type of fault only affects the exhaust valves, but it also damages the intake valves.