Bicycle Mechanics - Does anyone know how to service this rear shock?!

http://image.internetimagingnetwork.com/getImage?pid=ph36428810368&size=IMAGE_RES_4&mod=2002-05-22
http://image.internetimagingnetwork.com/getImage?pid=ph36428820369&size=IMAGE_RES_4&mod=2002-05-22
http://image.internetimagingnetwork.com/getImage?pid=ph36428640369&size=IMAGE_RES_4&mod=2002-05-22

This shock is from a bike that I bought from a fellow who had not maintained it at all. Being low in cash and my only means of transportation, the shock needs to be serviced(to do by myself) as I cannot buy another bike. The bike is apparently an old Ironhorse(with Amp forks), but nobody can tell me where I can get any help with parts!
The shock is very short(just over 5" extended), with a short stroke(less than an inch), and can't be replaced with any current shocks, I've been told. I have disassembled the shock before, not exactly sure how to reassemble; although it did work much better than when I had first purchased the bike(it only held pressure for 10 minutes).
If you have any further questions about the bike or shock itself, I will reply with any answers I can.
Thanks in advance to anyone who can give me ANY info,
Jory.

Man, I can't remember the name of that shock ... send those pictures to some magazines and such. Try Mountain Bike Action
www.mbaction.com

Even though you weren't able to solve my problem, I thank you for the reply with a good suggestion anyways.
There was a Marzochi sticker on it when I bought the bike, but they don't make rear shocks anymore. :confused:
I am about to put the shock back into the frame, but first I want to take it apart again and figure out what exactly the rear "plunger" cylinder is for & how it's used. None of the mechanics in the bike shops will even suggest what it does(I guess they are afraid of warranties becoming void), even though the shock is so old and I am willing to do the work myself; actually prefer to do it myself!
How much fluid, where and why the shock should be filled would also be a big help. Should I get some photos of the interior of the shock?
I am anxious to hear anymore other suggestions that could be tried, as I have been puzzling over this for a few years now.
Thanks again.
Jory.

Have you tried contacting Marzochi? Folks at those places frequently like to puzzle over old hardware like this, that was why i suggested MBA.

Even if you don`t have an exploded view or blueprint, you can try it yourself.

Try to discover how the shock is build and dismantle it carefully part over part.

Don`t use any brutal force, except if you really know how the part is mounted!

Number the parts, clean them and put them down on a clean white sheat, so you don`t forget the mounting procedure.

measure the oil level inside the shock and replace it with new shock oil.

Reassemble the shock and use loc-tight if neccesary.

If you have an air shock instead of the oil, you have to take much more caution, because you can damage airtight seals easily!!!

Good luck and let us know if you made it

Try asking here:

http://forums13.consumerreview.com/crforum?14@@.ee7b96c