What does 342 on the valve tappet represent?

1 Answers
PeytonLee
07/29/25 1:09pm
The number 342 on the valve tappet represents thickness. Here are the relevant details: 1. Hydraulic Tappet: The hydraulic tappet maintains constant contact with the camshaft, operating without any clearance. Inside the tappet, hydraulic pressure is used to adjust the clearance. The hydraulic tappet mainly consists of a plunger, a check valve, and a check valve spring. It stores or releases engine oil through the action of the check valve, and by altering the oil pressure within the tappet chamber, the working length of the hydraulic tappet can be adjusted, thereby automatically regulating the valve clearance. 2. Valve Tappet Cleaning Interval: The cleaning interval depends on various factors, such as the vehicle's driving environment, the control method of the fuel-injected engine, and air quality. Generally, cleaning is required every 20,000 to 30,000 kilometers. If the vehicle operates in a heavily polluted environment (mainly referring to inhalable particulate matter), impurities can quickly accumulate on the throttle body. Over time, this can affect the engine's air intake, necessitating cleaning. This phenomenon is most noticeable when starting the vehicle.
Was this review help?
15
1
Share
More Forum Discussions

How to Distinguish Between Different Car Body Types?

The engine hood and the front windshield form an almost slanted surface, making the entire body appear as a unified whole. Generally, streamlined MPVs can be classified as single-compartment cars. The driver's compartment and the trunk are integrated into one unit, with the engine compartment being very distinct. Typically, small cars adopt a two-compartment design, and all SUVs feature a two-compartment body. The car's engine compartment, passenger compartment, and trunk are relatively independent. Three-compartment cars usually have a 4-door, 5-seat design, making them more suitable for both business and family use.
20
3
Share

Does door dent repair require repainting the entire door?

Door dent repair does not require repainting the entire door. Here is expanded information about paintless car dent repair: Preserving original paint: Paintless dent repair technology uses patented techniques and streamlined processes to maximally preserve the vehicle's original paint condition, maintaining and reflecting the car's original value to the greatest extent. Excellent post-repair results: After paintless dent repair, the vehicle's appearance remains unchanged with no fading or alteration to its original color, maximally preserving your car's factory condition.
10
2
Share

Are there dash cams that clip directly onto the rearview mirror?

There are dash cams that clip directly onto the rearview mirror. The main functions of a dash cam include recording driving videos and emergency collision footage. It can document the entire driving process with video and audio, providing evidence for traffic accidents. For those who enjoy road trips, it can also be used to record the journey. Precautions for installing a dash cam: Before installing a dash cam, thoroughly read the manual to understand all the buttons and functions. Choose an installation location that does not obstruct the driver's view—the best spot is the upper center of the windshield, near the rearview mirror. Ensure it is within the wiper's coverage area; otherwise, in rainy or snowy weather, dirty windows outside the wiper's reach may result in unclear footage. Adjust the dash cam's field of view to face straight ahead, with the car's hood appearing at the bottom of the frame but not exceeding one-third. The A-pillars on both sides of the car should be positioned at the lower edges of the frame. Dash cam motion detection feature: The motion detection feature is designed to record when there is movement in the frame and stop recording when there is none. However, in situations with minimal movement, such as traffic jams or waiting at red lights, enabling this feature might cause the cam to miss critical footage. Therefore, it is recommended to turn off this feature while driving. For loop recording duration settings, dash cams offer options like 1, 3, 5, 10, or 15 minutes. For long drives, a 10-minute loop is recommended.
8
0
Share

What brand are the tires on the Honda CR-V?

Honda CR-V tires are Michelin, with a tire specification of 235/65R17. Tires are circular elastic rubber products mounted on various vehicles or machinery for ground rolling. The Honda CR-V has a body size of 4621mm in length, 1855mm in width, and 1679mm in height, with a wheelbase of 2661mm. The Honda CR-V is equipped with a 1.5T turbocharged engine and a 6-speed manual transmission, delivering a maximum power of 142 kilowatts and a maximum torque of 243 Newton-meters. It features front-wheel drive, with a front suspension using MacPherson independent suspension and a rear suspension using multi-link independent suspension.
4
1
Share

Which One is the Engine Start-Stop Button?

Engine start-stop button is a circle with an 'a' inside and the word 'off' below. The usage method of engine start-stop technology is: 1. After the car is started, the automatic start-stop system is in normal working condition; 2. When encountering a red light or other reasons to stop, step on the brake and the engine will automatically shut off; 3. When starting again, release the brake and step on the accelerator, or turn the steering wheel to restart. The conditions for the engine start-stop technology to automatically stop rotation are: 1. The engine is idling and not in gear; 2. The wheel speed sensor of the anti-lock system shows zero; 3. The electronic battery sensor shows sufficient energy for the next start.
9
1
Share

What are the widths of motor vehicle lanes?

Motor vehicle lane widths are as follows: two-way four-lane roads are 2×7.5 meters, two-way six-lane roads are 2×11.25 meters, and two-way eight-lane roads are 2×15 meters. Regulations regarding motor vehicle lanes: When driving on the road, motor vehicles must not exceed the maximum speed indicated by speed limit signs. On road sections without speed limit signs, drivers should maintain a safe speed. When driving at night, in hazardous road sections, or under adverse weather conditions such as sandstorms, hail, rain, snow, fog, or icy roads, drivers should reduce their speed. When driving in the same lane, the following vehicle should maintain a safe distance from the vehicle ahead to allow for emergency braking. At intersections, motor vehicles should proceed according to traffic signals, signs, road markings, or the directions of traffic police. When approaching intersections without traffic signals, signs, markings, or police direction, drivers should slow down and yield to pedestrians and vehicles with the right of way. Precautions for driving on motor vehicle lanes: Before driving, check the fuel, water, electrical system, brakes, and tire pressure. When starting, slowly lift the clutch pedal with your left foot. Once you hear the engine sound change or feel a slight vibration in the car, gradually press the accelerator pedal with your right foot while slowly releasing the clutch pedal. Avoid sudden movements. When changing lanes, observe the road conditions carefully and only proceed if it is safe. Never force a lane change. When making a U-turn or turning, reduce speed and shift gears appropriately, yielding to vehicles going straight. Avoid rushing. When reversing or parking, pay attention to your surroundings to prevent collisions with other vehicles.
16
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.