Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Vehicle rentals Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

···

Log in / Register

What are the components and functions of the crank-connecting rod mechanism?

3 Answers

RileyLee

08/28/25 8:28am

The components and functions of the crank-connecting rod mechanism are as follows: I. Components of the crank-connecting rod mechanism: It consists of three parts: the engine block group, the piston-connecting rod group, and the crankshaft-flywheel group. 1. Engine block group: cylinder block, cylinder gasket, cylinder head, crankcase, cylinder liner, and oil pan. 2. Piston-connecting rod group: piston, piston ring, piston pin, and connecting rod. 3. Crankshaft-flywheel group: crankshaft, flywheel, torsional vibration damper, and balance shaft. II. Functions of the crank-connecting rod mechanism: It provides a combustion chamber, converts the expansion pressure of the gas acting on the piston crown after fuel combustion into the rotational torque of the crankshaft, and continuously outputs power.

Was this review help?

11

1

Share

DelDallas

09/10/25 6:33am

The crankshaft connecting rod mechanism is the heart of the engine, and I've seen many car owners curious about its structure. Simply put, it consists of three main components: the piston moves up and down in the cylinder, the connecting rod acts like an arm linking the piston and crankshaft, and the crankshaft is the key to converting the up-and-down motion into rotational output. Every time the engine ignites, the piston is pushed downward by the combustion gases, causing the connecting rod to swing and the crankshaft to rotate—this is the magic that transforms our throttle input into wheel rotation. This mechanism also bears the immense pressure of the engine, so the materials must be exceptionally strong and the design precise. If any part wears out, such as a loose connecting rod bearing, the engine will produce annoying knocking sounds, and in severe cases, it may even lead to cylinder scoring and major overhauls, so proper maintenance is essential.

Was this review help?

12

2

Share

Expand All

MacSadie

10/24/25 7:25am

As a seasoned mechanic frequently involved in engine maintenance, I liken the crank-connecting rod mechanism to the human skeletal-muscular system. The piston acts like a kneecap, connected via the piston pin to the connecting rod, which resembles the thigh bone driving the lower leg (crankshaft) into rotation. The brilliance of this assembly lies in its conversion of linear explosive force from the combustion chamber into smooth rotational energy. This energy is then stored by the flywheel at the crankshaft's rear end, ensuring smoother vehicle acceleration. Just last week, I encountered a car with poor acceleration - disassembly revealed 0.5mm wear on the connecting rod small-end bush, causing a 15% power transmission loss. This demonstrates how every component must fit with micrometer precision to achieve peak performance.

Was this review help?

6

4

Share

Expand All

More Forum Discussions

Are Maybach's Small Triangular Windows Connected to or Separate from the Doors?

Maybach's small triangular windows are separate from the doors; they are fixed on the C-pillar. Maybach is a luxury brand under Mercedes-Benz, and its car models include the 57, 62, Maybach S-Class, etc. The Maybach S-Class is a large car with dimensions of 5466mm in length, 1899mm in width, and 1500mm in height, with a wheelbase of 3365mm. The Maybach S-Class is equipped with three types of engines: a 3.0-liter turbocharged engine, a 4.0-liter turbocharged engine, and a 6.0-liter turbocharged engine.

Can the T-Roc use 92-octane gasoline?

T-Roc cannot use 92-octane gasoline because all models of this car are equipped with turbocharged engines. Using 92-octane gasoline in a turbocharged engine may cause engine knocking, which can affect both power output and fuel economy. Different grades of gasoline have varying octane ratings—higher-grade gasoline has a higher octane value, and gasoline with higher octane ratings offers better stability. The T-Roc is powered by 1.2T and 1.4T turbocharged engines, paired with either a 7-speed dual-clutch transmission or a 5-speed manual transmission. Positioned as a compact SUV, the T-Roc measures 4318 mm in length, 1819 mm in width, and 1582 mm in height, with a wheelbase of 2680 mm.

What is the penalty for driving at 50 in a 40 speed limit zone?

Driving at 50 in a 40 speed limit zone will result in a warning from the traffic police department without any fine or demerit points. According to regulations, if driving a motor vehicle in violation of speed limit rules falls under any of the following circumstances without causing consequences, a warning will be issued by the public security traffic management department: 1. Exceeding the speed limit by less than 50% on roads with a speed limit below 60 km/h; 2. Driving a motor vehicle on highways at a speed less than 20% below the prescribed speed limit; 3. Driving medium-sized or larger passenger trucks, school buses, or hazardous chemical transport vehicles on roads other than highways or urban expressways exceeding the speed limit by less than 10%; 4. Driving motor vehicles other than medium-sized or larger passenger trucks, school buses, or hazardous chemical transport vehicles exceeding the speed limit by less than 10%.

Will crossing the solid line at a traffic light intersection result in penalty points?

Crossing the solid line at a traffic light intersection will result in penalty points, as it constitutes a violation of prohibited road markings. The central dividing line on the road can be either yellow or white. If it is a solid line, you must not cross it or overtake. Typically, traffic police will enforce this on the spot, imposing a fine and deducting 3 points from your license. Traffic lights generally refer to traffic signal lights, which are used to direct traffic and usually consist of red, green, and yellow lights. A red light means stop, a green light means go, and a yellow light serves as a warning. Tips for navigating traffic lights: When approaching a straight-through intersection with only one set of traffic lights, follow normal traffic rules—stop when the light is red and proceed when it turns green. At intersections where U-turns are permitted, you can make a U-turn regardless of the traffic light signal. However, if you see a 'No U-turn' sign at an intersection, it means U-turns are prohibited there.

Should the Equinox use 92 or 95 octane gasoline?

The Equinox is equipped with two turbocharged engines across its lineup, so it is recommended that owners use 95 octane gasoline. Gasolines with different octane ratings have varying levels of octane; the higher the octane rating, the higher the octane level, and the better the anti-knock performance of the gasoline. If the octane rating of the gasoline is too low, its anti-knock performance will be poor, which can lead to engine knocking during operation. Knocking is an abnormal combustion phenomenon in the engine. When the piston is in the compression stroke, it moves upward to compress the air-fuel mixture, at which point the pressure and temperature of the mixture increase. If the gasoline's anti-knock properties are inadequate, the air-fuel mixture may ignite before the spark plug fires.

What is the vehicle registration process?

Vehicle registration process: 1. Obtain the vehicle qualification certificate; 2. Keep the triplicate invoice for the vehicle purchase; 3. Pay the vehicle purchase tax and obtain the original and duplicate tax certificates; 4. Register and inspect the vehicle at the vehicle management office; 5. Select the vehicle license plate number. The owner of the motor vehicle shall fill out the motor vehicle registration application form and submit the relevant documents to the vehicle management office at the place of residence of the owner for registration. The vehicle management office requires the following for registration: 1. The name or unit name of the motor vehicle owner and the identity card number or unit code and the address of the residence; 2. The type, manufacturer, brand, model, vehicle identification number, engine number, and body color of the motor vehicle; 3. Relevant data of the motor vehicle; 4. The use nature of the motor vehicle; 5. The method of obtaining the motor vehicle; 6. The name and number of the origin certificate of the motor vehicle and the name and number of the import certificate for imported motor vehicles; 7. The name and number of the vehicle purchase tax payment or tax exemption certificate; 8. The type of insurance for the motor vehicle, the date of insurance, and the name of the insurance company; 9. The name of the vehicle sales unit or trading market and the sales price of the motor vehicle; 10. The date of registration.

Trending Ranking

What does ECU mean in a car?

How to Confirm Car Locking with Keyless Entry?

How to Adjust the Rearview Mirror of a Volkswagen Car?

Can Out-of-Town Vehicles Enter the Second Ring Road After Obtaining a Beijing Entry Permit?

How long is the validity period of a vehicle license?

Is the Left Side for Brake and Right Side for Accelerator Correct?

How many meters away should the warning sign be placed from the direction of oncoming traffic for a malfunctioning vehicle?

What is the tire pressure for the Chery Tiggo 8?

What is the correct way to use the car ECO mode?

What Do the Icons on the Car Dashboard Mean?

More Forum Discussions

Can the Vehicle Management Office Process License Renewals During National Day?

How many points are deducted for drunk driving a motor vehicle at one time?

Is it necessary to transfer the driver's license back to the local area?

Is it okay if the clutch slips once or twice?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.