How to Replace Your Own Garage Door Torsion Spring

garage-torsion-spring

When a torsion spring breaks it can be a scary experience. However, it’s relatively harmless, as these springs are fairly safe (if you have extension springs, then it’s a different story, which is why you should look to convert to torsion springs). The only thing you need to worry about is how you’re going to fix those garage door springs and get your door back in working order.

Fixing Broken Garage Door Springs

In the above video they welded the broken garage door torsion spring back together and put it through some more tests. This worked for them, but don’t think that this is a viable way to keep your garage door in working order. It’s very risky and unreliable, and even if you get it working again it won’t be for long.
The first thing you will need to do before replacing your torsion springs will be to measure your existing springs that you will know which size to order for the replacements. This video tutorial does a good job showing how to measure:

There are simple and cheap solutions though, as explained below. Getting your garage door working smooth again should not cost more than $250 when you do it yourself.

The Tools Youll Need

Before you go any further, you need to make sure you have the following tools and equipment:

  • 2 Winding Bars
  • Vise Grips
  • Wrenches (9/16, 1/2, 7/16)
  • 8 Point Socket
  • Step Ladder
  • Safety Glasses (make sure you’re wearing these)

You will also need a replacement torsion spring, which you can purchase on websites like Garage Door Nation or at local stores like Home Depot or Lowes (though they may have limited sizes when shopping in-person). Once you have what you need then you can begin by removing the broken spring from your door.

Removing Broken Torsion Spring

The first step is to safely unwind the spring. Torsion springs are much safer than Extension springs, but there is still a risk of something going wrong as you’re playing with a lot of pressure. So, play it safe and don’t rush in.

  • Place your winding bar in the winding cone of the wound spring.
  • Use the 7/16 wrench or 8 point socket to gradually release each of the keys on the spring. Expect pressure as you do so.
  • Add your second wind bar and turn, releasing pressure one quarter-turn at a time until there is no tension left.
  • Release spring from the center cone using either the 9/16 wrench or the 1/2 wrench, whichever one fits.
  • Use your vise grip to secure the torsion shaft in place.
  • Loosen the keys on the drum and remove the cable.
  • Slide the broken spring off.

Installing New Torsion Spring

Now that you have removed your broken spring you just need to add the new spring. The cost of replacing garage door springs can vary, and will be most expensive when hiring a local service company versus doing it yourself. This is a little easier, but there are still a few steps involved:

  • Slide the new spring on. Make sure the spring is facing the right way in regards to Left-Hand Wound springs and Right-Hand Wound springs.
  • Remove the vise and reattach the bolts.
  • Secure the spring in place.
  • Use the winding bars to wind up the spring. The amount of turns you need will be different depending on the size of your door, ranging from 30 to 35. Double check the owner’s manual for these details.
  • Tighten the keys.
  • Put the cable and the drum back in place.
  • Don’t be afraid to use your new spring. The more you use it, the quicker you will break it in and get it into full working order.

The above instructions can also be used if you’re looking to change both of your springs. Just make sure that you perform the previous steps on both sides of your door and that you keep the tension equal on both sides.

For a video version, this video may be helpful to follow-along with:

This covers all major problems with garage doors, from transmitter and motor issues, to broken springs and more.

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