The process should be trying to confirm the cap is faulty. When the radiator cap gets stuck, the pressure will be built inside the radiator. This will lead to a leak or burst of the cooling system components.
The cap should be checking on a regular basis to avoid such problem. Coolant leakage from the radiator filler neck often leaves white streak when it dries.
This is another way to know the radiator pressure cap is faulty, just check for these white streaks. The problem is known for cap leaking under pressure or intermittently. As the pressure occurs the coolant expands and the pressure cap allows some portion to flow into an external reservoir tank.
A bad cap will delay or quickly release the coolant which will cause overflow to happen. Always ensure the overflow tank is also in good working condition. The radiator cap may get faulty if the radiator hose collapses. In conclusion, the radiator pressure valve is one of the vital components in the engine cooling system.
We saw how it works and how it can be tested in two steps. Finally, we also examined some symptoms of a bad radiator cap. I hope the enjoyed the reading, if so, kindly comment, share and recommend this site to other technical students.
Tags Automobile engine Automotive chassis clutch cooling system Diesel engine Engine lubrication system. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Used radiator cap. The picture is taken on white background. Take a simple example, a pressure cooker you have in your kitchen will cook food faster because the water in the device is hotter.
Most radiator pressure caps keep the system pressure at 16 PSI so the engine coolant can get considerably hotter without the fear that it will boil off.
If there is no pressure in the cooling system, the coolant will boil off. On the other hand, if the pressure was allowed to increase above 16 PSI the cooling system, including the hoses and even the radiator, could simply burst or even explode if the conditions were right.
Never lose sight of the fact that a liquid expands as it gets hotter. As engine temperature increases, the coolant temperature increases as well, if the temperature exceeds the norm. The design of a typical radiator cap is such that liquid is allowed to escape; it does so by moving from the radiator to a reservoir. When the car engine is shut down, it begins to cool the coolant contracts. If there were not a radiator pressure cap installed, the system would draw in air.
Air causes poor engine cooling and is the main cause of cooling system component corrosion. As the vacuum continues to build up, the two-way check valve, which is exactly what a radiator pressure cap is, goes to work. The upper seal seals and protects the system at all times. After the engine warms and system pressure reaches the caps rated pressure, the pressure spring compresses and pressurized coolant flows into the reservoir or coolant overflow tank.
It allows for the expansion of the heated fluid. The radiator cap also allows the coolant to flow back into the radiator as the engine cools. It also contains a vacuum valve.
0コメント