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    4. : Why do exhaust valves get damaged more easily in bi-fuel cars

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Model: (Various brands) Various
Part: Engine
Operation: Why do exhaust valves get damaged more easily in bi-fuel cars

In this video we see why engines running on LPG and methane are more likely to have damaged exhaust valves: we see in the cylinder head that the smaller valves are the exhaust valves, while the larger ones are the intake valves, and they ensure a tight seal during the compression and combustion phases. But why do exhaust valves get damaged in bi-fuel engines? The intake valves come into contact with fresh air, while the exhaust valves, when they open, come into contact with very hot air due to the end of the combustion process. In these types of engines, combustion occurs at significantly higher temperatures, and the combustion is longer compared to gasoline cars. Therefore, the exhaust valve will also come into contact with combustion residues, which will damage it very easily, and no longer guarantee the seal of the cylinders, leading to gas leaks from the valves. The remedy is to sinterize the valve seats. A typical characteristic of bi-fuel engines.


Posted on 2 April 2024 by ScegliAuto

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How to reset the oil warning light on the Alfa Romeo Giulietta

If you want to manually reset the oil change light on your Alfa Romeo Giulietta then this guide is all you need. You do not need any diagnostic tools and will be able to complete the whole procedure without any difficulty. First, go inside the car and make sure it is completely turned off. Then keep the accelerator pedal pressed and at the same time press the brake pedal six times consecutively. When finished, keep both pedals pressed and turn on the ignition. Press the brake pedal again six more times and keep both pedals depressed for approximately 50 seconds. Turn off the ignition. Release the brake pedal and hold the accelerator pedal for another 50 seconds to complete the procedure.

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by ScegliAuto

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