Beatrice Lang
Replacing a clutch fan with an electric fan is a popular modification for car enthusiasts. The process can vary depending on the vehicle's specific configuration, but the general idea involves removing the clutch fan and installing an electric fan in its place. This modification is often done to improve engine cooling, reduce weight, and enhance the vehicle's aesthetics by removing the mechanical fan and belt. It is important to note that removing the clutch fan can impact the vehicle's cooling performance, especially for manual transmission vehicles, and may require additional modifications to the cooling system.
Characteristics and Values Table for Replacing a Clutch Fan with an Electric Fan
| Characteristics | Values |
|---|---|
| Tools Required | Hammer, flat-head screwdriver, wrench, pliers, punch, safety glasses |
| Steps | 1. Remove fan blades for more room. 2. Soak overnight with a penetrating fluid. 3. Use a wrench and screwdriver to remove the fan clutch. 4. Use a hammer and punch to break the fan nut loose. 5. Install the electric fan. |
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What You'll Learn
Removing the fan shroud and upper radiator hose
To remove the fan shroud and upper radiator hose, you will need to first drain some coolant. Then, disconnect the upper radiator hose. Depending on the make of your car, you may also need to remove the belt.
If the clutch is held to the belt pulley hub by screws or bolts, use a plumber's strap wrench to keep the pulley from turning while you loosen the screws. If they're not very tight, you may be able to press on the belt instead. If the clutch is held by a single-nut mount, employ a tool that uses the pulley screwheads for restraint. There are inexpensive wrenches designed specifically for this job.
To remove the fan shroud, you will need to remove the bolts fastening it in place. Most applications will also require the removal of the top radiator hose to get the fan shroud out.
If the fan is on too tight, you can use a hammer to knock the wrench and force the nut loose. Remove the fan by rotating the blades counterclockwise until the fan can be pulled off of the pulley.
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Using a wrench and hammer to remove fan blades
To remove fan blades using a wrench and hammer, you will need to follow a few steps. Firstly, lubricate the hub opening and remove the set screw, placing the adjustable wrench under the blade. You can use WD-40 or a similar product for lubrication. Rotate the blade while keeping the shaft in a fixed position to loosen it. Use additional lubricant if necessary.
Next, grab a friend to help. Ask them to hold the fan blade at its centre, allowing the motor to hang below. Take a punch and a hammer, and gently tap the shaft with the hammer to drive the punch. Remember to tap gently and not strike with force. Remove any rust from the shaft and, if needed, tighten the wrench onto a flat spot on the shaft underneath the blade.
If the fan blade is particularly stubborn, you can try a few alternative methods. One option is to use a screwdriver and a hammer. Line up a flat-head screwdriver with the corner of the nut and gently strike it with the hammer until it breaks free. Alternatively, you can use an air hammer instead of a manual hammer and screwdriver.
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Using a screwdriver and hammer to remove the fan clutch
To remove the fan clutch using a screwdriver and hammer, you can follow these steps:
First, if you have access, it is recommended to take the fan blades off to give yourself more room to work. If the fan clutch is rusty, you may want to spray some penetrating fluid to help loosen it.
Next, line up a large flat-head screwdriver on the corner of the fan clutch nut. Hold it firmly in place, applying pressure in a clockwise direction. Then, use a hammer to hit the end of the screwdriver until the fan clutch breaks free. You can apply force to the screwdriver with the hammer until the fan clutch comes loose.
Alternatively, you can use a wrench and hammer combination. Use a 32mm wrench on the fan clutch nut and hold it firmly with pressure in the clockwise direction. Then, use the hammer to strike the end of the wrench until the fan clutch breaks free.
If you are having trouble breaking the fan clutch free, you may need to soak the fan clutch overnight with a penetrating fluid such as PB Blaster. You can also try using an air hammer or a pipe wrench and mallet combination.
Keep in mind that using a screwdriver and hammer may not be the best method for removing the fan clutch, as it can potentially damage the water pump or fan. If you are unable to remove the fan clutch using this method, you may need to use a special tool designed for this purpose or consult a professional.
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Using a fan clutch tool kit
You can buy fan clutch tool kits online, such as on Amazon, for a relatively low price. These kits are popular in the hot rod community, and guides on how to use them can be found on hot rod forums.
The process of removing the clutch fan involves taking off the fan blades to give yourself more room. It may be necessary to soak the fan overnight with a product like PB Blaster to help loosen it. You can then use the fan clutch tool kit to grab the screws and hold the fan clutch while you loosen it with a 32mm wrench.
If you don't have access to a fan clutch tool kit, you can try using a long flat-head screwdriver and a hammer. Line up the screwdriver on the corner of the nut and keep hitting it with the hammer until it breaks free.
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Replacing the fan clutch
To replace the fan clutch, you will need to remove the fan shroud and the upper radiator hose. Here is a step-by-step guide:
Firstly, rotate the lower portion of the radiator shroud fully open. This will give you access to the fan clutch. If you are unable to open the radiator shroud fully, you may need to remove it by first removing the radiator top hose and then sliding the tabs on the shroud to twist it up, creating enough clearance to get the shroud out.
Next, remove the fan blades. There are typically four bolts securing the plastic fan blade assembly to the fan clutch. You can remove these with a wrench. Leaving a couple of bolts loosely in place can help prevent the fan from getting in the way during the next steps.
Now, you can remove the fan clutch. There are a few different methods you can use:
- Using a hammer and punch, align the punch to the left edge of the "hex" of the fan clutch nut and pound with the hammer. It may take multiple attempts to break the fan nut loose, but after that, it should spin easily by hand.
- Using a long flat-head screwdriver and a hammer, line up the screwdriver on the corner of the nut and keep hitting with the hammer until it breaks free.
- Using an air hammer or a regular hammer, place a long flat-head screwdriver between the large nut and the two small hex heads (or just one hex head), and apply force. Use a large crescent wrench or water pump pliers on the other side and rotate.
Finally, install the new fan clutch by screwing it into place. Make sure to follow the manufacturer's instructions for proper installation.
Note: It is recommended to wear safety glasses during this process and to have one person holding the counter and the other on the wrench for stability. Additionally, if the fan clutch has not been removed in a while, it may be helpful to soak it overnight with a penetrating fluid such as PB Blaster to help loosen it.
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