What are the symptoms of water ingress in a tricycle motor?

1 Answers
VonSkylar
07/30/25 12:34am
There are three types of reactions when a motor is exposed to water. Visible faults: The motor fails to operate, and symptoms may include bearing damage, increased noise, severe coil burnout, and even a noticeable rubber burning smell. Hidden faults: Parts of the motor may rust extensively, leading to magnetic pole short circuits and reduced insulation performance of the coils. The motor's current will continuously increase, secondary faults will accumulate, and eventually, the motor will need replacement. Treatment methods: Remove the motor, dry it thoroughly (either by baking or sun-drying), eliminate rust, polish the rotor and stator with the finest sandpaper to prevent friction, and inspect the bearings.
Was this review help?
18
1
Share
More Forum Discussions

Is it normal to drive 25,000 kilometers a year?

It is normal to drive 25,000 kilometers a year. Here is the relevant introduction: 1. Operational vehicles: Generally referring to taxis, in large cities, the day shift usually covers about 300KM per day, while the night shift covers less than 200KM. Accumulatively, it amounts to about 500KM per day. Excluding time for vehicle repairs, it totals approximately 150,000KM per year. (In smaller cities, the normal value might be slightly less but not below 100,000KM) 2. Private cars: Generally used only for commuting to and from work, occasional holiday trips, and outings during festivals. The distance between the company and home usually does not exceed 70KM.
1
4
Share

Where to Put Your Phone When Taking the Written Driving Test Alone?

There is usually a numbered bag at the entrance of the examination hall for candidates to store their mobile phones, wallets, and other personal belongings. Here are some relevant details: 1. Precautions: When placing your phone, be sure to note the number on the bag and remember to retrieve your belongings after the exam. Additionally, before storing your phone, make sure to mute it, enable airplane mode, or turn it off completely to avoid any noise during the exam that might disturb other candidates. 2. Arrive Early: Do not be late; follow the instructions of the staff and collect your study files in the order of the examination hall. Bring and present your ID card for inspection by the supervising officer. Mobile phones must be turned off upon entering the exam area. The written test (Subject 1) is a theoretical exam, so it is crucial to read the questions carefully.
11
5
Share

Where is the automotive fuel-water separator located?

The front side of the vehicle frame fuel tank. Below is relevant information: 1. Quality requirements: Under China National III emission standards, models equipped with high-pressure common rail engines have higher diesel quality requirements. This is because high-pressure fuel injectors need precise control over injection pressure, timing, and quantity, demanding more refined manufacturing. 2. Impact: If water or impurities in diesel aren't thoroughly filtered, they can cause wear and scoring on the injector's plunger assembly, potentially leading to injector seizure. Damaged injectors may result in unstable engine acceleration, lack of power, or black smoke emissions, affecting normal vehicle operation.
1
1
Share

What Causes the Transmission to Make Noise When the Throttle is Released?

There are several reasons why the transmission makes noise when the throttle is released: 1. Bearing wear: Wear and damage to bearings can cause increased clearance and reduced fitting accuracy. When bearings are damaged, they cannot operate normally, leading to abnormal noises and even damage to transmission components, exacerbating the issue. 2. Transmission component wear: Wear of transmission components or the use of low-precision replacement parts, such as gears with excessive clearance between new and original gears. 3. Insufficient lubrication: Inadequate or overly viscous lubrication can lead to poor lubrication. The corresponding lubricant (grease) should be replaced; otherwise, it will accelerate transmission wear and shorten its lifespan. 4. Loose bolts: Bolts on the transmission housing (end cover) may become loose due to vibration during use. Regular inspections should be conducted to prevent this.
9
5
Share

Is the Engine Hood Being Hot a Sign of Car Damage?

The engine hood being hot does not indicate car damage. It is normal for the engine hood to become warm after short-distance driving. The operating temperature of an engine is generally around 90 degrees Celsius, and the heat from the engine transfers to the hood, causing it to heat up. If there is no heat-insulating and noise-reducing insulation pad on the inner side of the hood, the heat will be more noticeable. The engine dissipates heat to the hood, including heat from the radiator. As long as the temperature gauge on the dashboard does not show overheating, there is no issue. The engine hood serves an aerodynamic function. For objects moving at high speeds through the air, the air resistance and turbulence generated around the moving object directly affect its trajectory and speed. The shape of the engine hood effectively adjusts the direction of airflow relative to the car's movement and reduces the obstructive force of the airflow, minimizing its impact on the vehicle. The engine hood also protects the engine and surrounding pipeline components. Beneath the hood lie critical components of the car, including the engine, electrical circuits, fuel lines, braking system, and transmission system. By enhancing the strength and structure of the hood, it can effectively prevent adverse effects such as impacts, corrosion, rainwater, and electrical interference, ensuring the vehicle operates normally.
14
5
Share

Can Zhejiang License Plates Enter Downtown Shanghai?

Yes, vehicles with non-Shanghai license plates are only restricted from using elevated roads within the Middle Ring Road (including the Middle Ring Road) from 7:00-9:00 AM and 4:30-6:30 PM on weekdays (Monday to Friday). These restrictions do not apply on holidays and public holidays. During other time periods, there is no difference between non-Shanghai license plates and Shanghai downtown license plates. 1. Passing through restricted intersections: Vehicles with restricted license plate endings can go straight through intersections with restricted roads, but cannot turn left or right onto the restricted roads. 2. No use of bus lanes: During restricted hours, the Second Ring Road will maintain dedicated bus lanes, allowing only buses, registered school buses, and company shuttle buses. Restricted vehicles are not permitted to use these lanes.
9
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.