What size wrench for Chevy fan clutch?

Wrench Size for Chevy Fan Clutch
When it comes to the wrench size for a Chevy fan clutch, the most commonly mentioned sizes are 32mm, 36mm, and 48mm. These sizes are tailored to the specific needs of the vehicle’s cooling system and are made of hardened steel to withstand the force required to remove the nut. The fan clutch nut is typically 36mm, but some sources also mention the use of a 32mm or 48mm wrench for this purpose, ,,,,,.
It’s important to note that some kits come with a range of sizes to accommodate most models, and the choice of the specific wrench size may depend on the particular model and year of the Chevy vehicle. Therefore, it’s advisable to consult the vehicle’s manual or a professional mechanic for the most accurate information.
In summary, for a Chevy fan clutch, a 32mm, 36mm, or 48mm wrench is typically used for removing the fan clutch nut, with the most common size being 36mm.

What size are the bolts on the fan clutch?

5/16”
Many aftermarket clutch manufacturers have chosen to over consolidate fan clutches with the 5/16” bolt hole for both standard and reverse rotation clutches. If the fan clutch has previously been replaced with an aftermarket unit, the OEM bolts may have been replaced with smaller 5/16” aftermarket supplied bolts.

Which way do you turn a fan clutch to remove it?

To remove the fan clutch, install a large crescent wrench onto the clutch’s nut, and hit it using a hammer to loosen the fan. If you are unsure about which way to loosen the fan nut, it’ll always loosen in the same direction as the fan when the engine is running.

How tight should a fan clutch be?

I installed a new fan clutch. The bentley manual says to tighten the bolt by hand and then pound on the wrench once with your fist. It is supposed to be torqued to 40 lbs.

Is it OK to drive with a bad fan clutch?

Originally Answered: What happens if you keep driving with a bad fan clutch? If it is merely slipping it could cause overheating whenever you are stopped for long. If it is wobbly it could cause damage to the radiator and/or anything else it may hit, including fan belts or hoses.

Which way do you loosen a fan clutch nut?

So in order to do that it needs to spin this way. Right. So whatever way the fan needs to spin. That’s the way you hit it to loosen that nut so you can remove the fan so Fan’s been in this way.

What size is a fan clutch wrench?

They’re made of hardened steel to withstand the incredible force required to remove this nut, and they’re often powder coated or painted to prevent corrosion since they’re used infrequently. Common sizes for fan clutch wrenches include 22mm, 36mm, 39mm, 47mm, and 50mm.

What does a bad fan clutch feel like?

A bad or failing fan clutch leaves the fan permanently engaged, causing a noisy engine and a decrease in performance. More importantly, a stuck fan clutch can cause excessive, unnecessary drag on the engine, which results in a drop in acceleration, power & fuel efficiency, sometimes to a quite noticeable degree.

What size is the nut on a 4.3 Vortec fan clutch?

The fan clutch “nut” is 36 mm. You can use a 1 7/16″ wrench which will be loose but will work, or you can take a 1 3/8″ wrench and grind the open end to fit.

What tools do you need to remove a fan clutch?

And what i’m going to do is use the mallet. And just tap down on top of the wrench and then that should shock it. Off.

What size is the nut on a 2002 Chevy TrailBlazer fan clutch?

The nut size is 36mm.