Lock the door open again with c clamps or locking pliers and stretch the extension springs another one to two inches with the garage door in its fully open position.
How to install new springs on garage door.
Make sure that the bearing is inside the stationary cone.
Repeat this process on the other side of the door.
Tap the carriage bolt into the garage door with a hammer.
The doors with two springs are easy to replace.
Slide the torsion bar to the left then add.
Installing the new springs 1.
A pair of new springs cost about 25.
A couple of carabiners can.
Insert the carriage bolts through the door from the outside.
Don t stretch the springs so far that the sheave on the spring and the stationary sheave touch when you retest the door.
Get your new extension spring cable.
Slide the left spring onto the tube and add the cable drum.
When your new springs arrive put the new left spring.
Finger tighten nuts on bolts until the stationary cone is flush against the center bearing plate.
There are two types of garage door springs.
Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers.
Thread the cables and tighten.
Release the tension on side mounted extension springs by lifting the door and locking it in place on each side with a pair of locking pliers.
Insert the bolts in the stationary cones of the new torsion spring and insert the bolts in the slots on the spring anchor bracket.