Reassembling woofer with sagging spider

[bcbud3]

I refoamed this woofer a while back. At first I did it by hand and everything felt good. Put some music through it and could hear some scratchiness. Loosened up the surround and used the test tone method. Again everything seemed ok until i put some music through it. Again slight scratchiness. So tonight I separated the surround from the basket and cut open the dust cap. The voice coil is shifted to the side and not centered.

How do I put this back together and fix the sagging spider? Shim the vc, glue the surround and then deal with the spider sag?

 

[4-2-7]

How do I put this back together and fix the sagging spider?

Install the driver in the cabinet 180 degrees the opposite direction from the sagging. It sagged that direction because it was in that cabinet for so long one way and most likely not being used. Once it's all back together keep the music low or at least back it off when you hear that rattle noise.

 

[bcbud3]

I meant how do I reassemble the woofer itself knowing that the spider is sagging. Should I shim the voice coil and glue down the surround and then deal with the spider sag?

 

[RTally]

Shim the VC to ensure it is centered in the gap and glue the surround in place. Install the driver rotated 180 degrees from the way it had been installed, just as 4-2-7 noted above. In time, the spyder should return to position.

 

[ultumax]

Shim the VC to ensure it is centered in the gap and glue the surround in place. Install the driver rotated 180 degrees from the way it had been installed, just as 4-2-7 noted above. In time, the spyder should return to position.

Got any pictures of this for future reference ? Do down firing speakers suffer from this ?

 

[bcbud3]

Well, I shimmed the VC and glued the surrounds and now it buzzes like crazy. No matter which direction I try pushing the cone it buzzes. I think I will give up for now.