Valve Damage and Causes
Negligence can be the root of many unwanted expenses. Whether it’s the maintenance of an industrial vehicle or a conventional car, issues not fixed on time can turn out to be bigger expenses. The same rule applies to automobiles. Minor problems can turn into significant ones if fixation is delayed. The repair may cost higher depending on the component. For instance, if a major engine component is damaged, it can lead to complete engine failure.
One such major component is the engine valve, which like other parts is prone to damage. We will go through the possible causes of engine valve damage and some effective steps to take in this regard.
Engine Valves Function
The engine valves control the airflow inside a vehicle’s engine. These valves are responsible for allowing air or liquid flow during the combustion process. As a component performing such a vital function, any damage to it can be hazardous for the engine.
Engine valves, like other components, go through a natural process of wear and tear. The engine components need to be built with maximum precision as the slightest misalignment can lead to failures. Some of the other problems caused by engine valve damage include valvetrain noise, increased fuel consumption, a compression leak or a complete valve failure.
Symptoms of Valve Damage
Just as you would take immediate action against symptoms of car engine failure, valve damage also requires a prompt response. Modern vehicles come equipped with camshaft engines that diminish the chances of valve damage; however, the majority of older models may encounter valve problems.
Therefore, it is important to know the engine valve problem symptoms to take immediate action if your vehicle shows any such signs. Listed below are some common symptoms of engine valve damage that you should be aware of:
TICKING NOISES FROM THE ENGINE
If you come across popping or ticking noises from the engine, there may be some engine valve problems. The ticking sounds tend to get louder as you accelerate. This may be because valves have worn off or a possible misalignment. Either way, lubrication in the engine may be affected – leading to the ticking noises.
ENGINE POWER LOSS
Another symptom of valve damage is low engine power and performance. Valves are designed to fit perfectly without no or minimal leeway. However, in case of oil leakage, a gap might be formed – causing the valve to lose its seat.
Additionally, burnt valves can also contribute to a decrease in engine performance and power loss.
BLUE SMOKE COMING FROM THE TAILPIPE
If you see blue smoke from the tailpipe, your vehicle may have an engine issue. Although blue smoke indicates several problems, engine valves may be a certain one.
Damaged engine valve seals and guides make room for oil to get to the combustion chamber. This results in oil burning along with the fuel. Drivers are also more likely to experience oil levels dropping rapidly.
Engine Valve Damage and Causes
Whether your vehicle is equipped with V-engines, W-engines or any other type, valves need to be in perfect condition for an effective run. However, engine valves can wear with time or may go bad due to bad driving habits. That said, let’s go through some common types of engine valve damage and their causes.
IMPROPER INSTALLATION OF VALVE SPRINGS
This happens when the spring isn’t fitted properly during installation. The improper installation of the spring can cause a lateral bending movement on the valve’s stem. This can lead to the complete wreckage of the valve guide.
IMPROPER INSTALLATION OF HYDRAULIC TAPPETS
There is a minimum time frame of 30 minutes after the installation of the tappets. This problem arises when this period is not served. The oil inside the tappets doesn’t get enough time to escape the area. This results in the valve’s collision against the piston which may result in bend and break.
IMPROPER VALVE CLEARANCE SETTINGS
This issue usually occurs when the valve clearance is set tighter than it should be or when the maintenance periods have been exceeded. This can lead to overheated valves and burns in the valve seat area.
MISALIGNMENT AT THE VALVE GUIDE OR THE VALVE SEAT INSERT
When the valve seat or valve guide alignment is non-centric, misalignment is likely to occur. When this happens, the valve cannot close properly. This may lead to burns and damage in the valve seat area.
EXCESS VALVE GUIDE CLEARANCE
This engine valve damage occurs when the valve guide clearance is too big. This usually happens due to excess wear of valve guides.
INSTALLATION OF WORN PARTS
Old or used spare parts can cause damage to the vehicle. Therefore, it is essential to choose spare parts wisely for better results. Using worn-out parts can also cause engine valve damage in several ways. Pay extra attention when installing the following parts:
- Valve cotters
- Rocker arms
- Valve stem
OVERSTRESSING VALVE BECAUSE OF COMBUSTION DEFAULTS
Combustion defaults may cause the temperature and pressure to rise significantly in the combustion chamber. When the valve is unable to withstand the pressure, it may bend inwards – causing damage to the valve head.
These are all the engine valve damage and the causes. Engine valves are an integral part of a vehicle’s engine and they should be well taken care of. Timely checks and repairs can ensure you don’t end up bearing any additional damage and expenses.
Some engine problems are relatively easy to fix while others are not. Therefore, it is important to know whether to replace or repair the engine to avoid any extra expenditure.
Moreover, don’t forget to keep a check on these neglected car maintenance services to increase your vehicle’s running life.
If your vehicle engine encounters frequent issues, it is better to go for a new vehicle. You can find pre-owned versions of many vehicles, equipped with advanced engines. Browse through these used cars for sale in the UAE and have your pick.
Stay tuned to dubizzle’s auto blog for information about engine problems and more.