How does a water pump fan clutch work?
The fan clutch is a thermostatic device, which means it operates based off temperature, and is usually mounted on the water pump, or another belt driven pulley. The fan clutch will spin loosely until the temperature reaches a certain level, at which point the fan clutch will fully engage…
How does the fan clutch on a Silverado work?
Righty tighty & lefty loosey. the fan is self tightening. so just look at the direction the fan is spinning when the engine is running, thats the direction you need to spin the nut to loosen it. The nut on my fan clutch has notches in it kind of like most left hand threaded nuts do. The new one I bought does not have those notches.
What are the symptoms of a bad or failing fan clutch?
As the fan clutch is a cooling system component, any issues with it can cause overheating and other issues. Usually a bad or failing fan clutch will produce a few symptoms that can alert the driver of a potential issue.
What is an electric fan clutch?
The fan clutch is a cooling system component that controls the operation of the engine cooling fans. While many newer vehicles now use electric cooling fans to keep the engine cool, many older vehicles used a mechanical fan clutch to control the fans.
Can a timing belt be replaced on a water pump?
When replacing a water pump that is driven by a timing belt or chain it best to replace the timing belt or chain with a new unit since it will be take off anyway. This will require a diagram which will show you where the timing marks are so you can reassemble the engine correctly.
When do you know it’s time to replace the fan clutch?
According to Hayden, here are some signs your fan clutch might need replaced: Fan spins excessively when engine is stopped (three or more times when hot engine is shut off). Poor A/C performance at idle or low vehicle speeds. Fan speed does not increase when engine is hot.
How does a non thermal fan clutch work?
Non-Thermal Fan Clutches. Non-thermal clutches operate solely based on the shaft speed of the water pump. At low and idling speeds, the clutch allows the fan blade to turn at almost a 1:1 ratio.
When to replace the timing belt on a water pump?
When replacing a water pump run by a timing belt, always replace the timing belt at the same time, especially if the water pump was leaking. A coolant contaminated timing belt will have a reduced service life. On the other hand, a worn out timing belt may break and damage your new water pump.
Can a sutck closed thermostat cause a water pump failure?
A sutck closed thermostat will block coolant circulation and overheat the engine, as well. One way to check for worn out or failed pump bearing is to check for water pump shaft movement. 1. With a faulty bearing, you can often hear a squealing, howling, or sometimes a grinding noise coming from the front of the engine.
How can I check if my water pump is working?
Check the water pump shaft and pulley for signs of damage or movement. On vehicle models where a serpentine, drive or timing belt runs the water pump, you may need to remove the belt to manually check the water pump pulley. Wiggle your pump pulley with your hand. If you notice damage or movement, replace the water pump. Rotate the pulley by hand.
What happens when the fan clutch goes bad?
When the fan clutch goes bad, it can lock up and spin at full speed depending on the engine rpm. The problem is that at high rpms your belt can break, the fan can break, and you engine makes a lot of noise. This video will teach you how to change the fan clutch ($30) and save at least $150.