How To Fix A Radiator Leak With JB Weld: Quick & Easy

A leaking radiator can be a real headache. But, with JB Weld, you can fix it yourself. This guide will show you how to fix a radiator leak using JB Weld. It is easy and quick. Let’s get started!

What You Will Need

Before you start, gather all the necessary tools and materials. Here is a list:

• JB Weld
• Sandpaper
• Rubbing alcohol or acetone
• Rag or cloth
• Gloves
• Bucket
• Coolant
• Water

Step 1: Locate the Leak

First, you need to find where the leak is. Check your radiator carefully. Look for wet spots or drips. You may need to use a flashlight to see better.

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Step 2: Drain the Radiator

Once you find the leak, you need to drain the radiator. Put a bucket under the radiator. Open the drain valve and let the coolant flow out. Be careful, the coolant can be hot!

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Step 3: Clean the Area

Now, clean the area around the leak. Use sandpaper to remove any rust or dirt. Then, wipe it with a rag and rubbing alcohol. This will help JB Weld stick better.

Step 4: Mix JB Weld

Next, put on your gloves. Open the JB Weld package. Squeeze equal parts of the two tubes onto a piece of cardboard. Mix them together until you get a consistent color. This will take about a minute.

Step 5: Apply JB Weld

Now, use a small stick or a putty knife to apply JB Weld to the leak. Spread it evenly over the area. Make sure to cover the leak completely. You can add a bit more around the edges for extra strength.

Step 6: Let It Cure

JB Weld needs time to harden. Let it sit for at least 15 hours. It is best to leave it overnight. Make sure the area stays dry and clean while it cures.

Step 7: Refill the Radiator

After JB Weld has cured, it is time to refill the radiator. Close the drain valve. Pour in new coolant and water. Make sure to follow the instructions on the coolant bottle.

Step 8: Check for Leaks

Start your car and let it run for a few minutes. Check the repaired area for leaks. If you see no leaks, you have done a great job!

Frequently Asked Questions

How Do You Prepare A Radiator For Jb Weld?

Clean the radiator surface thoroughly. Ensure it’s dry and free of debris or oil.

Can Jb Weld Fix A Radiator Leak?

Yes, JB Weld can effectively seal small radiator leaks and cracks, offering a durable repair solution.

How Long Does Jb Weld Take To Cure?

JB Weld typically cures in 4-6 hours, but full strength is achieved after 15-24 hours.

Is Jb Weld Permanent?

JB Weld creates a permanent bond, making it a reliable choice for long-term radiator repairs.

Conclusion

Fixing a radiator leak with JB Weld is simple. Just follow these steps, and you will save time and money. Remember to always be careful when working with your car. Safety first!

Frequently Asked Questions (FAQs)

If you have any more questions, feel free to ask. Happy fixing!