The fan clutch nut is usually around 1-1/4 inches in diameter. Most fan clutches have a standard size nut, but some may be slightly smaller or larger. It is important to check the size of the nut before purchasing a new fan clutch, as a wrong size nut can cause the fan clutch to not work properly.
How do I know if the fan clutch nut is the right size?
There is no definitive answer to this question, as there can be slight variations in the size of fan clutch nuts from one manufacturer to another. However, a good rule of thumb is to select a nut that is just slightly larger than the nut that is currently being used. This will ensure that the new nut is the correct size, and will also allow for any slight variations in size between different brands of fan clutch nuts.
What are the consequences of having the wrong size fan clutch nut?
If the fan clutch nut is too small, it will not properly secure the fan clutch to the engine, and the fan clutch could come loose. This could cause the fan to come loose and possibly damage the radiator. In addition, the fan could hit other engine parts and cause damage. If the fan clutch nut is too large, it will be difficult to remove and could damage the threads on the engine.
How do I find out the size of the fan clutch nut if I don't know?
To find out the size of the fan clutch nut, you will need to look in the owner's manual for your vehicle. The fan clutch is usually located near the radiator, and the size of the nut will be listed in the manual. If you don't have the manual, you can usually find the size of the fan clutch online.
What are the dimensions of the fan clutch nut?
There are a few different fan clutch nuts out there, so the dimensions will vary depending on which one you have. However, the average fan clutch nut is about 3/4 of an inch in diameter.
What is the fan clutch nut made of?
The fan clutch nut is made of a variety of materials, depending on the manufacturer. Some are made of steel, others aluminum, and still others plastic. The material of the nut does not affect its function, which is to keep the fan clutch from coming loose. Over time, the fan clutch nut can become corroded or damaged, and will need to be replaced.
Frequently Asked Questions
How to check the fan clutch?
1 Spin the fan. Electronic types might freewheel, but most fan clutches should spin with a little effort. ... 2 Inspect for leaks. The key to fan clutch function is its heavy silicone oil, whose viscous properties allow for soft engagement to drive the fan. 3 Check fan speed. ...
What size is a fan clutch wrench?
The wrench that fits the fan clutch nut is 1-7/8 inch.
What type of thermal fan clutch do I Need?
Standard-duty thermal fan clutches are best for applications with less power demand, while heavy duty thermal fan clutches are better suited for higher power applications.
What happens if you use the wrong fan clutch?
If you use the wrong fan clutch on your vehicle, it could cause poor cooling, excessive noise, reduced fuel economy or even fan clutch failure.
How does a torque limiting fan clutch work?
A torque-limiting fan clutch reacts to engine speed. A centrifugal valve opens to allow the flow of heavy silicone fluid, locking the fan blades to the pulley. At idle and low engine speeds, this fan clutch is fully engaged, gradually disengaging as engine speed increases. Depending on the application, it may freewheel above 2,500 to 3,000 rpm.
