Dropped my lens

[Afterglow]

So, my camera got dropped over the weekend and now by sony 18-70 kit lens is not so healthy. Initially the focus was sticking but i've managed to fix that part of the problem (cogs not in alignment).
Unfortunately now when the camera powers on it doesn't appear to be able to properly tell where the focus is positioned. When it powers on or off it continually spins the focus motor even though the focus is at its end point. Eventually if it stops doing this the AF actually seems to work until you turn it off and it does the same thing.
My assumption is that this is to do with the 4 metallic disks in the back of the lens, had i realised there were 4 when i took the top off I would have taken more care to remember which one was which Anyway I am a bit impoverished to afford a new lens and I don't really think professional repair is worth it on a £150 lens so does anyone have any ideas how to put this back together in the right order? There are 4 discs, two are of the same brass like material, one is a silver metal and one looks like very thin copper. Alternately is there maybe something else I have missed?

cheers,
Paul

 

[coldpenguin]

Well, that leaves 24 possible permutations. One of which you have tried!
Are the disks different in any way?

 

[paulyoung666]

your title says lens , your thread says camera , what was dropped ? , even if the body did not hit the ground then shock may have damaged something or put something out of alignment

 

[gumbo-67]

house insurance???? not sure you will be covered now you have taken it apart but worth trying to claim as asccidental damage

 

[Afterglow]

Well, that leaves 24 possible permutations. One of which you have tried!
Are the disks different in any way?

Only in that they appear to made of 4 different metals, one silver in colour which could be just about anything I suppose, two look like brass in colour and one is almost certainly a very thin piece of copper. They have identical shape and the way the lens goes back together they have to all sit on top of each other, so the only permutation is the order, I suppose I could try all 24 combinations

your title says lens , your thread says camera , what was dropped ? , even if the body did not hit the ground then shock may have damaged something or put something out of alignment

The camera with lens attached fell a couple of feet onto paving slabs, looks like it landed on the lens hood and knocked a tooth out of the pinion for the focus which jammed the mechanism, with the loose tooth removed it operates smoothly. The camera seems to work fine I have another lens which works fine with it, the optics seem ok. I don't think it hit the floor particularly hard just the rack/pinion is made of very soft metal :/

house insurance???? not sure you will be covered now you have taken it apart but worth trying to claim as asccidental damage

The same girlfriend who knocked it onto the floor also forgot to renew the contents insurance last week (not that I have more than one girlfriend). It never rains but it pours as they say :/ plus I don't think we would have had accidental damage cover anyway.