1. In addition to scaling, place two large, peeled, and seeded loofahs into a water tank and rinse them regularly. This helps maintain cleanliness and prevents the buildup of debris.
2. If the piston ring lacks sufficient elasticity, consider replacing it with a new standard ring of the same type. To check the old ring, place it vertically along the circumference and ensure both ends are in a horizontal position. Press the rings by hand. If the new ring's gap opens while the old one remains closed, it indicates that the old ring is still flexible and can be reused.
3. Repair a damaged paper gasket by applying a small amount of butter on both sides. Cut two thin white papers of the same size as the gasket, and stick them onto both sides. Place the gasket back on the machine and tighten the nuts to prevent oil leakage.
4. Bleed air from the pump. If the rotor oil pump in the S195 diesel engine fails to draw oil due to air trapped inside, use a medical waste needle to fill the pump inlet with oil. Turn the pump until oil starts to come out of the outlet, ensuring all air is removed.
5. Address oil leakage at the connection between the high-pressure fuel pipe and the injector. The seal relies on the precision of the contact surface and the tightness of the union nut. If the surface wears out, cut a small round piece of copper from a scrap cylinder pad, punch a hole in the center, and place it between the protruding head and the recessed area to restore the seal.
6. Clean the iron filter of the air filter. It’s difficult to clean with diesel oil. If the filter element is oily, burn it off carefully. After extinguishing the fire, tap the core gently with a wooden stick to remove any remaining residue, ensuring the filter is thoroughly cleaned.
7. Remove dirt from the fine filter. The dirt inside the rotor oil filter is hard to clean. Apply a layer of butter on the inner wall of the rotor, let the dirt stick to the butter, then remove the paper to eliminate the dirt completely.
8. Bend copper tubing more easily. Since copper is rigid, heat the section you want to bend using charcoal until it turns red, then quickly cool it in water. This softens the metal, making it easier to shape without breaking.
9. Remove the outer retaining ring from the deceleration gear. On the Dongfeng-12 model, the elastic retaining ring is hard to remove. Use a wire: insert one end through the small hole in the ring after tightening, and wrap the other end around a screwdriver. Pull tightly and rotate the drive wheel back and forth several times to loosen and remove the ring.
10. Fix tire sagging. Take two tablespoons of talcum powder, remove the valve core, and release the air from the inner tube. Use a funnel made from hard paper to insert the talcum powder into the inner tube. When the powder is no longer flowing, remove the funnel, turn the wheel, and continue filling until full. Then reinsert the valve core and inflate the tire. The talcum powder will spread inside and adhere to the inner wall, sealing small air leaks and preventing them from spreading further.
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