trying to disassemble the rear master cylinder

[JPerez]

So I am trying to disassemble my rear master cylinder on my 1984 FJ600. I stated on the calipers bit now have moved onto the master.  I got the snap ring out but I am having no luck disassembling it to get to the spring. Does anyone know how to do this? Here is a link to my photobucket.  Its the first 2 pictures. Any advice/help would be greatly appreciated.

http://s1316.photobucket.com/user/jperez1229/media/Mobile%20Uploads/20140107_210646_zps705c2ad7.jpg.html?sort=3&o=0

[movenon]

So I am trying to disassemble my rear master cylinder on my 1984 FJ600. I stated on the calipers bit now have moved onto the master.  I got the snap ring out but I am having no luck disassembling it to get to the spring. Does anyone know how to do this? Here is a link to my photobucket.  Its the first 2 pictures. Any advice/help would be greatly appreciated.

http://s1316.photobucket.com/user/jperez1229/media/Mobile%20Uploads/20140107_210646_zps705c2ad7.jpg.html?sort=3&o=0

A little shot of compressed air ? Keep your fingers and cats out of the way....
George

[JPerez]

So then I should shoot air up where the spring is to try and blow the metal piece out? You know of any other way? I have a tendency of loosing things.

[simi_ed]

Before using the compressed air, wrap the end of the plunger (the part that should come out) and the master cylinder in a rag, then hit it with the air.  It'll pop, but won't go anywhere.  

[movenon]

Before using the compressed air, wrap the end of the plunger (the part that should come out) and the master cylinder in a rag, then hit it with the air.  It'll pop, but won't go anywhere.  

There you go taking all the fun out of it Ed
George

[FJmonkey]

Ed saved another cat.... 

[red]

So then I should shoot air up where the spring is to try and blow the metal piece out? You know of any other way? I have a tendency of loosing things.

JPerez,

Wrap the master cylinder in a towel, as if you do expect parts to go flying everywhere.  They might, and you would need the towel to catch all of them safely.  The compressed air goes in, where the oil comes out.  You are trying to use air pressure to push the piston out, here.  Try to do this operation gradually, using no more air than necessary.  If you need the full air pressure, and still nothing happens, stop and press the center plunger in slightly, and see if you can clean out any debris stuck inside the cylinder.  Then start over, with the MC wrapped in a towel as before.

If the piston or cylinder is badly corroded inside, and it may be, just replace the MC with a new (or good used) one.

Cheers,
Red