Browse

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 Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

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

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

What is the working principle of a fuel pump?

1 Answers

KingRose

07/29/25 7:15pm

The working principle of a fuel pump is: to draw gasoline from the fuel tank and press it through the pipeline and fuel filter into the float chamber of the carburetor. The maintenance methods for a fuel pump are: 1. Do not use water-containing substances to create a vacuum; 2. After removing most of the solvent in an oven, use the oil pump to create a vacuum; 3. Use the vacuum pump in the correct sequence; 4. Add the specified grade of lubricating oil; 5. The fuel must be clean, free of impurities and water. The causes of abnormal noise in a fuel pump are: 1. Damage to the one-way valve of the fuel pump, resulting in no residual pressure and difficulty in starting; 2. Wear of the centrifugal pump impeller, leading to reduced fuel supply pressure and weak acceleration; 3. Wear of the carbon brushes, causing the fuel pump to stop; 4. Mechanical faults such as rotor jamming, leading to increased working current of the oil pump and damage to the relay or fuse.

Was this review help?

19

4

Share

More Forum Discussions

What type of suspension does the Envision use?

The Envision adopts MacPherson independent suspension for the front and multi-link independent suspension for the rear. Relevant information about the Envision is as follows: 1. The Envision is a midsize SUV under SAIC-GM Buick, with only the 2019 model currently available, launched in December 2018, including both China V and China VI versions. 2. The design of the 2019 Envision follows the family-style design language, featuring a large-mouth front grille with two wing-shaped chrome trim strips inside the mesh area, treated with blackout. The headlights on both sides are very sharp and highly recognizable, echoing the fog lights below, creating a good visual effect. The lower air intake has strong layering and is treated with blackout, conveying a strong sporty atmosphere.

How Long Does It Take to Transfer a Motorcycle Title?

Motorcycle title transfer can be completed within one business day. Below are the key considerations for motorcycle title transfer: Required Documents: Buyers should thoroughly understand the documentation of the used motorcycle they intend to purchase. Some buyers opt for cheaper motorcycles with incomplete paperwork that cannot be transferred, which can cause significant issues for both the buyer and the seller. The necessary documents for a used motorcycle transaction include the vehicle registration certificate, license plate, purchase invoice, insurance policy, and the ID cards of both the buyer and the seller. Title Transfer Process: The most critical yet often overlooked aspect is the transfer of vehicle-related documents. Many owners skip the transfer process for convenience, leading to major difficulties in using the motorcycle or claiming insurance later. It is advisable for buyers to complete the transfer of vehicle documents and insurance policy renaming as soon as possible after purchasing a used motorcycle.

Does Motorcycle License Demerit Points Affect Car License?

Yes, it does affect. Currently, both licenses are integrated into one. Regardless of whether it's a motorcycle or car violation, demerit points are deducted from the same license. Points deducted for motorcycle violations are counted against the driver's license score. If a motorcycle violation results in demerit points, it won't affect obtaining a driver's license. However, when registering a new car, if the motorcycle owner's name matches the car owner's name, it will impact the registration process. The motorcycle violations must be cleared first. Additional Information: Demerit Points System: Refers to the traffic police departments recording corresponding points based on the severity of the violation when penalizing motor vehicle drivers for violating road traffic laws, regulations, and rules. Depending on the severity of the violation, the points deducted at one time are categorized into five levels: 12 points, 6 points, 3 points, 2 points, and 1 point.

Which country produces Rolls-Royce and Bentley?

Rolls-Royce and Bentley are produced in the United Kingdom. The following is a related introduction to Rolls-Royce: 1. Exterior: The Rolls-Royce Cullinan has a body length, width, and height of 5341mm, 2164mm, and 1836mm, respectively, with a wheelbase of 3295mm. 2. Interior: The interior design of the Rolls-Royce Cullinan is not in a modern style but follows a classic style, unaffected by the passage of time. The dashboard design adopts a mechanical watch-like styling. 3. Powertrain: It is equipped with a 6.8L V12 twin-turbocharged engine, delivering an output of 600 horsepower and a torque of 850Nm.

Does Motorcycle Backfiring Damage the Vehicle?

If the motorcycle backfiring phenomenon is not very severe, it will not have much impact on the vehicle. Below are the specific reasons for the backfiring sound in motorcycles: Engine malfunction: If the air-fuel mixture in the engine is too lean, fuel consumption will increase, and acceleration may become intermittent. If the engine emits black smoke or produces backfiring sounds during low to medium-speed operation and tends to stall during rapid acceleration, this indicates that the air-fuel mixture in the engine is too rich. The carburetor or air filter should be promptly checked for blockages. Fuel not meeting requirements: Using fuel that does not meet the requirements can cause engine knocking, which reduces engine power, leads to incomplete fuel combustion, and worsens the motorcycle's acceleration performance. Excessive lubricating oil: Too much lubricating oil in the engine can cause incomplete combustion of the air-fuel mixture, leading to carbon buildup over time and backfiring sounds during acceleration.

Where is the Sylphy Body Control Module Located?

The body control module of the Sylphy is located behind the glove compartment on the passenger side. Below is an introduction to the automotive body control module: 1. Definition: The Body Control Module (BCM) is a powerful control module designed to implement discrete control functions, managing various electrical devices. 2. Functions: The BCM's functions include power window control, central door lock control, remote security, lighting system control, heated power mirror control, instrument panel backlight adjustment, and power distribution, among others. 3. Trend: A single centralized BCM struggles to handle increasingly complex functions, making bus-based and networked BCMs the development trend.

Trending Ranking

How to Clear the Maintenance Reminder for the 2018 Octavia?

What Causes Loud Exhaust Noise in Wuling Hongguang?

What is the younger brother of the Accord?

Should I Go for Driving Practice in the Rain?

Where is the rear brake on a motorcycle?

What is a Car Three-Way Catalytic Converter?

Is it necessary to upgrade the audio system in the new Santana?

Where is the location to add windshield washer fluid for the Volkswagen Lavida?

Does the Mercedes-Benz C260L have a spare tire?

Can a Motorcycle License Be Taken in a Different Location?

More Forum Discussions

Is the Mercedes-Benz E-Class Front-Wheel Drive or Rear-Wheel Drive?

Is the Wuling Capricorn Engine Produced by GM?

What are the differences between the Magotan B8 and B8L?

What is the reason for the constant water shortage in the Wuling Rongguang radiator?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.