Alternator freewheel pulley: what is it for and when to replace it?
The alternator clutch pulley is present in the main car models on the market, but do you know exactly what function is it? For its replacement, always rely on professionals such as GXOAP team. Online service is always ready for you.
One-way alternator pulley, it absorbs vibrations from accessory belt drive systems compared to the solid alternator pulleys. When the engine slows down, such as when changing gears or shutting down, the inertia of the alternator creates resistance on the belt. When the belt suddenly slows down, the alternator pulley allows the alternator to move freely or over-running. This prevents the belt from slipping, reducing vibration, wear and squealing.
What are the benefits of the overrunning alternator pulley?
The overrunning alternator pulley brings numerous benefits to alternator manufacturer.
- Allows the use of alternators with higher power output.
- It reduces the influence of the alternator mass on the belt drive system.
- Reduces wear on all belt drive components.
- Eliminates slippage and the resulting noise.
- Absorbs vibrations and fluctuations.
- Extends the service life of all accessory belt drive components.
When to replace the alternator idler pulley?
This must be taken into account when servicing the vehicle’s drive system, as the alternator over-running alternator pulley is the most important component for reducing wear on the accessory belt drive system and, to a large extent, prevents overloading of the drive system.
This must be taken into account when repairing the vehicle’s drive system, because the overrunning alternator pulley is the most important element to reduce wear on the accessory belt drive system and largely prevent overloading of the drive system.
If the pulley fails, it will cause internal spring wear and failure of the overrunning clutch device. A damaged alternator overrunning pulley cannot effectively suppress vibrations and cannot properly transmit power to the alternator.
Therefore, GXOAP Manufacturer recommends:
You should not hear any strange noises when the engine is running, otherwise there is a problem that needs to be solved.
You can also check by visual inspection or by replacing any parts of the auxiliary drive, here are some tips:
- When installing a new alternator, replace the flywheel pulley with a tool suitable for replacing the alternator pulley.
- Replace the alternator free pulley after 120,000 kilometers.
- If necessary, you can also replace the belt tensioner and the multi-V belt at the same time.
The main product as below:
Overrunning alternator pulley: Audi Volkswagen(F00m147737、24-91255-3、F-553470/F-227628.xx、535001210)
GXOAP alternator pulley: Toyota(021040-1811 、27415-0t010/0t011/0w020、535020810)
GXOAP alternator pulley: Nissan(23150-3ta1b/A、A252c586fd/fe、F-600038、535027310)