Skeezix
Well-Known Member
- Joined
- Jul 7, 2011
- Messages
- 87
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I have an 8-foot garage door with one torsion spring going across the top. The door has 7 (or maybe 8?) panels. It has an automatic door opener on it. For years something has been making a light bang just about a foot from the fully open position to a foot from the fully lowered position when I operate the door. When closed, the door seats against the garage floor nicely, and the auto-reverse also operates correctly.
When I last lowered the door I heard a somewhat loud noise when the door bottom was about a foot or so from the floor. With the door opener disconnected from the door there is a binding when the door bottom is about 2 feet off the floor.
Looking at the door from the inside of the garage it is been rotated clockwise such that when the bottom right corner hits the floor, the bottom left corner is about 8 inches off the floor, and the right-hand cable is off the pulley. It is difficult to manually raise and lower the door past this point but I can do it. I've tried without success to straighten the door. Raising the door by putting a jack under the lower right corner raises the entire door.
I've checked the tracks with a level. The vertical parts are perfectly plumb both side to side and top to bottom. The horizontal parts are correctly spaced from each other and are parallel to the ground. None of the track's assembly bolts are loose or have worked themselves to different positions. None of the rollers are binding. I've only had a cursory look at the spring but I can't say that it's broken.
QUESTION 1: What can I check before I take a closer look at the spring?
QUESTION 2: How can I verify the spring is broken is without removing it?
QUESTION 3: How do I measure the spring length and the coil diameter so that I buy the correct spring at the box store?
When I last lowered the door I heard a somewhat loud noise when the door bottom was about a foot or so from the floor. With the door opener disconnected from the door there is a binding when the door bottom is about 2 feet off the floor.
Looking at the door from the inside of the garage it is been rotated clockwise such that when the bottom right corner hits the floor, the bottom left corner is about 8 inches off the floor, and the right-hand cable is off the pulley. It is difficult to manually raise and lower the door past this point but I can do it. I've tried without success to straighten the door. Raising the door by putting a jack under the lower right corner raises the entire door.
I've checked the tracks with a level. The vertical parts are perfectly plumb both side to side and top to bottom. The horizontal parts are correctly spaced from each other and are parallel to the ground. None of the track's assembly bolts are loose or have worked themselves to different positions. None of the rollers are binding. I've only had a cursory look at the spring but I can't say that it's broken.
QUESTION 1: What can I check before I take a closer look at the spring?
QUESTION 2: How can I verify the spring is broken is without removing it?
QUESTION 3: How do I measure the spring length and the coil diameter so that I buy the correct spring at the box store?