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Posted to alt.home.repair
HeyBub
 
Posts: n/a
Default How to replace torsion springs?

yourname wrote:
Why is it that people are so damn afraid of springs. Are you afraid to
change the shocks on your car? Damn


## See below


you need: 2 bars maybe 30 inches long, not too long not too short.
Probably 3/8 or 1/2 inch diameter

wrench to fit the bolts in the outboard spring mount[square head on my
doors]

There are 4 holes in the outboard ends of the springs. The bars need
to just fit in them.


standing on a very sturdy ladder, you will need to first take the
weight of the spring with your shoulder. Stick the bar in the hole
that is closest to horizontal.If you let the bar loose it will go flying,
break your collar bone or somehting similarly ugly.
So you are standing on the ladder, door down, facing the door, bar
resting firmly on your shoulder. when you lift the bar you will see
the cable slack.

loosen the bolts clamping the spring retainer to the bar. the bar
should be weighing on your shoulder, not any space in between you and
it.
The force will now be on your shoulder and not on the door.
Take the second bar and place it in one of the holes above the one you
are using and push it up, away, towards the door/wall.

This will allow you to remove the bar resting on your shoulder.

carefully lower the second bar till it rests on your shoulder

repeat.

When there is no force left on the bar, you can do the other side.

tightening is the reverse process

Note that there is always a bar in the hole, so that the spring can
only spin less than half a turn and is not very dangerous unless you
put your head in there or use some old rotten piece of tubing
instead of a proper solid steel bar.

Completely replacing a spring is a little more complicated than just
adjusting, but not rocket science. Note exactly how the cable is wound
on the pulley.


Follow the above instructions exactly. If you don't, you may die. No joke.

These springs have as much as 47,000 ft lbs of energy stored within them.
This is enough energy to raise a Volkswagen higher than a two-story house
(or fling you a city block), or bake 15,000 pizzas.