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

(Various brands) Various - Video tutorial

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 do I replace the Land Rover Evoque auxiliary battery?

In order to replace the auxiliary battery of the Land Rover Evoque, it is necessary to go inside the passenger compartment and remove the panel which is positioned immediately under the glovebox. Once the screws that secure this panel have been loosened, it will be possible to access the components located in its rear part, including the auxiliary battery. The latter must be disconnected from its cables and the fixing screws must be loosened. The battery can then be replaced with a new one and the panel can be fixed again with its screws.

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by ScegliAuto

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