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master cylinder trouble

  • Thread starter Thread starter oldgsfan
  • Start date Start date
O

oldgsfan

Guest
So, I'm redoing the brakes on my 80 GS850G and am currently taking the master apart to get it clean and sparkly. (There was a brief interlude when an opossum decided to move into my garage..but I'm back at work on the brakes again).

I've already torn and killed the little rubber sleeve that protects the piston in the master cylinder, so it looks like I'll be buying a rebuild kit.

While I wait for it to arrive in the mail, I figure I might as well continue taking the thing apart and getting it clean and ready.

So how do you get that piston out? It has nice bounce to it so I'm sure the spring inside is still good, but there's this ring with two eyes holding it in and I'm not sure how to get that thing out. I'm assuming it has to come out before the piston can be removed. Is that correct anyone?

I tried taking a long ice pick and probing one eye of the ring to see if it would budge, but it doesn't. My needle nose pliers won't reach down far enough to grab the ring. Am I missing some special tool, or is there a trick to getting that thing off?

As always, any and all suggestions are most welcome.

Thanks,

Hector
 
Go to a tool store, they have snap ring pliers with pointy jaws specially for this job. I use mine all the time for those annoying stuck snap rings.

Nastyjones
 
nastyjones said:
Go to a tool store, they have snap ring pliers with pointy jaws specially for this job. I use mine all the time for those annoying stuck snap rings.

Nastyjones
Click to expand...

Make sure they are long enough...not every pair will work.
I think Z1 sells a pair of long snap ring pliers just for this job...

I use a pair of long thin needle nose pliers....
 
that circlip is in there DEEP.... i bought a set of snap ring pliers at ace hardware and modified them by grinding the nose down to a slim profile. worked great. i have heard yo can tease them out with an awl or some such nonsense.

have you looked at the rear m/c and caliper too? might as well do em both, while yer in there and all.
 
I'll be getting that tool

I'll be getting that tool

I figured there was an easy answer to this one. I'll look for that tool.

And, no, I haven't really checked the rear brakes yet.. but I will. I expect I'll be posting more questions when I get to that.


Thanks everyone!
 
I got a pair at Sears. It's easier if you use a screw driver to rotate the clip so the holes are near the opening where the handle goes then hold the piston down and you can get the points in the little holes and squeeze.
To check the master to see if it's good just carefully using a rag for protection pinch the brake line with pliers and squeeze the handle it should be rock hard if not you have a problem.
Good luck
 
lucabond said:
To check the master to see if it's good just carefully using a rag for protection pinch the brake line with pliers and squeeze the handle it should be rock hard if not you have a problem.
Click to expand...

Isn't that pinching awfully hard on the hoses?
I guess they probably need replacing anyway.
 
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