[Peter Serio]

You need to be SUPER CAREFUL messing around with those springs.


They are meant to be "pre-wound" which helps to offset the weight of the glass. The electric motor, by itself does not have enough power to push one of those windows all the up with out an assist from the spring.

All GM power and manual window regulators are made like this. Older GM cars had thick (read heavy) side glass and the spring tension inside the regulators was tailored to the weight of the glass, 2 door vs 4 door. Side glass vs quarter glass.

You should have pinned the arm, removed the motor and put it back on with those 3 bolts that way the spring is in it's original "wound" position.

In the shop manual it tells you how to do that. In some cars it can be done inside the door in others the regulator has to be removed.

I cannot tell you what the wind is in # of turns except that it is wound. In some cars it is around 1/2 a turn in others it is 3/4 of a turn.

Basically it is a counter balance spring so you may need to experiment with it to get it put back right. BE VERY CAREFUL. The arm has enough force when un-tethered to nip off the tip of a finger!!!! The pinion gear of the motor holds the spring back until you get it mounted inside the door so that the spring is then under the weight of the glass. In the shop I have seen people get hurt messing around with those regulators!!!!!