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What are the causes of cylinder head gasket wear?

1 Answers
DiJoseph
07/30/25 4:32am
There are several causes of cylinder head gasket wear: 1. Elongation or loosening of cylinder head bolts and nuts; 2. Deformation of the mating surfaces between the cylinder head and engine block. If these two surfaces are deformed, the cylinder head gasket cannot be evenly compressed, leading to gas leakage and subsequent gasket burning; 3. Dirty mating surfaces during installation, incorrect tightening sequence of cylinder head bolts and nuts, insufficient or uneven torque. Methods to prevent cylinder head gasket wear include: 1. Strictly inspect the flatness of both mating surfaces (cylinder head and engine block) before installation; 2. Check whether the quality of the cylinder head gasket meets standards; 3. During installation, tighten bolts and nuts evenly according to requirements and achieve the specified torque.
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What are the reasons why the Volkswagen Lamando car key cannot close the windows?

Reasons why the Volkswagen Lamando car key cannot close the windows include the master button being turned off, system disorder, and window regulator failure. Below is a detailed introduction to the causes and solutions for this issue: Master Button Turned Off: The Volkswagen Lamando has a button that prevents the windows from being raised or lowered. Once pressed, the three window glasses cannot be raised or lowered. Solution: Unlock this button. System Disorder: Due to disorder in the vehicle's control system, the window key control does not match the vehicle's central control. Solution: Simply re-match them. Window Regulator Failure: A malfunction in the window regulator prevents the glass from being raised or lowered freely. Solution: Visit a 4S shop or repair facility for inspection and replacement.
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Can a 10-year-old car still be driven?

A 10-year-old car can still be driven normally as long as its condition and safety performance are good, provided that it meets emission standards and passes the annual inspection. Here are the relevant regulations for vehicle scrapping: 1. Annual inspection time regulations: Small and micro non-operational passenger vehicles must be inspected every 2 years within the first 6 years; vehicles over 6 years old must be inspected annually; vehicles over 15 years old must be inspected every 6 months. 2. Delayed scrapping vehicles: For vehicles that require approval procedures for delayed scrapping according to regulations, the current procedures still apply; for vehicles that have previously undergone delayed scrapping procedures but do not meet the new scrapping standards, they will be managed as normal vehicles, with a reprinted vehicle license copy and annual inspection stamps as required, without the delayed scrapping inspection approval stamp.
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What are the differences between the domestically produced and imported Range Rover Evoque?

There are several main differences between the domestically produced Range Rover Evoque and the imported version: 1. Price: The official guide price of the domestically produced Evoque is lower than that of the imported version. 2. Models: Currently, there is only one model of the imported Evoque available for sale, while the domestically produced version offers 6 different models. 3. Body colors: The domestically produced Evoque has fewer body color options (only 6) compared to the imported version (12 colors available). 4. Body type: The imported Evoque is a 2-door, 4-seat SUV, whereas the domestically produced version is a 5-door, 5-seat SUV.
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How to Affix the Compulsory Traffic Insurance Label on a Car?

First, clean the car's windshield thoroughly, then prepare a static cling sticker. Peel off the compulsory traffic insurance label and affix it to the static cling sticker on the right front windshield. Here’s some information about compulsory traffic insurance: 1. Starting from January 1, 2019, new regulations introduced electronic insurance policies for vehicles, meaning insurance companies no longer provide compulsory traffic insurance labels or paper commercial insurance policies. This makes the front windshield cleaner and reduces visual blind spots. 2. In addition to the compulsory traffic insurance label, the environmental protection label is also no longer required, as environmental protection inspections are now combined with annual vehicle inspections. Therefore, only the annual inspection label remains, but this does not mean environmental inspections and purchasing compulsory traffic insurance are unnecessary. 3. Electronic insurance policies have the same legal effect as paper policies. Traffic police authorities cannot detain vehicles or impose penalties for not displaying the compulsory traffic insurance label if the owner can provide electronic policy information during roadside checks.
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What is the difference between TSI and TFSI in cars?

The difference between TSI and TFSI in cars is that TFSI has an additional stratified combustion technology compared to TSI. Here are some details about TSI and TFSI in cars: 1. The TFSI engine features both stratified injection and turbocharging. The TSI engine is an upgraded version of the TFSI engine, adding a mechanical supercharger, as the TSI system abroad includes twin charging. 2. The TSI engine is equipped with an exhaust turbocharger + mechanical supercharger, achieving high power output with a small displacement, making it a high-power, low-speed, high-torque engine. 3. The TFSI engine uses a stratified fuel injection mode at low to medium speeds, where the throttle is partially open, and the piston top is designed with a special shape, resulting in thinner cylinder walls, reducing engine weight, saving costs, and lowering fuel consumption.
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What are the two reasons why the Besturn B70 car windows are not working properly?

Besturn B70 car windows are not working properly due to two reasons including faulty window switches, window circuit malfunctions, or window regulator failures. Below is a detailed introduction to the causes and solutions for this issue: Faulty window switches: The window switches may have poor contact, causing the windows to frequently fail to roll up or down. Solution: Check the switches. Window circuit malfunctions: Short circuits or open circuits in the control wiring can prevent the windows from functioning normally. Solution: Use a multimeter to check the continuity of the wiring. Window regulator failures: Malfunctions in the window regulator can prevent the glass from opening or closing properly. Solution: Replace the window regulator with a new one.
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