Should a Car with Cylinder Scoring Be Repaired or Sold?
2 Answers
Cars with cylinder scoring can be kept if they can be repaired properly, eliminating the need to sell. Below are relevant details about cars with cylinder scoring: 1. Cause: The primary reason is severe lack of lubrication oil, leading to a sharp rise in friction temperature between the cylinder liner and piston as well as the connecting rod. Under high temperatures, due to drastic changes in the thermal expansion coefficient of metal objects, the lubrication gap rapidly decreases, causing the piston, cylinder liner, and connecting rod to seize. 2. Symptoms: Due to the powerful inertial force during operation, the cylinder block suffers severe impact damage and becomes irreparable. 3. Precautions: If the mechanical lubrication gap between the piston and the inner wall of the cylinder liner is too large, it can also cause mechanical impact damage to the cylinder block.
A blown head gasket is quite troublesome. It's caused by the gasket damage leading to the mixing of engine oil and coolant. If left untreated, the engine is more prone to overheating or even complete failure. I've repaired similar cars before, and the repair costs are really not cheap—ranging from at least three to four thousand to over ten thousand, depending on the extent of the damage and the car model. Assess the overall condition of the car: if it's over 10 years old or has run over a hundred thousand kilometers, other issues might arise after the repair, such as engine wear or oil leaks, which could cost even more. Additionally, driving with a blown head gasket is unsafe and increases the risk of accidents. I recommend first getting a professional diagnosis and quote from a repair shop, then checking the car's residual value in the used market. If the repair cost is close to or exceeds the car's valuation, it might be better to sell it to cut losses. Selling it in a blown head gasket condition will fetch a lower price, but it saves hassle and time. In short, weigh the costs and potential issues carefully—don’t make an impulsive decision to avoid regret. From personal experience, selling a car in poor condition outright is often the wiser choice.
