Ron in NY wrote:
Hi all,

About a month ago, I posted a question asking what might make one
of my garage doors be off center. All of the answers I got said that
a weak spring on 1 side might do that. Well, I got 2 new matched
springs yesterday, and installed them---same problem--the door is
rubbing against 1 of the tracks as it goes up. I tightened the cable
on that side to give it more tension, but no difference. I then
switched the springs, left to right, and still no difference.

All of the rollers are free, both to rotate and to slide in or
out. The door is not warped, and the tracks still look perfect--not
bent or warped. I can push the door sideways and center it, but as
soon as it starts to move, it slides to 1 side. What could cause this
problem, beside a weak spring ??? My other garage door is perfectly
centered with no problems.


RON.
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I agree with Jim. Springs need to be adjusted - balanced. I suspect
this is the problem. As they age it is possible that they don't stretch the
same and require a re-balance. You don't need to replace the springs unless
they are greatly out of spec or don't match.

--
Joseph Meehan

Dia duit