leaking rear cylinders

Ok i need some help one of my rear cylinders are leaking from the exaust outlet. It leaks bad when its all the way up then it drop a little and leaks really slow from there. What is the problem and how can i fix it?

i am having the same problem!

It depends on what cylinders they are. If it's leaking out the exhaust port at the bottom of the cylinder, it means that the piston seal is bad.
If you have a cylinder that is rebuildable, you can take it apart and put new seals in, provided that the cylinder walls aren't scored or damaged.
However, most air cylinders are not designed to be serviced, so you may just be stuck getting new cylinders.
If you're not sure what you have, post a picture of one up here- I can tell most types by sight. Good luck!

-Phil at FBI

my rear are canovers. I notice it didn't leak today so its kind of weird. It was leaking last night and today its fine.

Edited: 2/7/2007 4:21:22 PM by Vbullet98

Phil I am having the same problem witht he cylinders leakin down, Below is a link to a picture of my cylinders. Are they rebuildable? Or can I take them apart and clean them out?

Chris

The Blue one is from EAI, it is rebuildable, if you can get the seals. I have a few seals instock, but the can might not be worth saving. The other 2 grey ones are Chassis tech. And the chrome one Im not sure of. Call me if you need any further help.

Edited: 2/8/2007 9:06:32 AM by Vbullet98

Are the chassis tech ones rebuildable?

Chris

I have re-built the chassis=tech ones before. People say they are not rebuildable, This is not true. As long as the cylinder walls are not scrored you can just re-seal them. Most of the times it works when you re-build them.

I have honed the walls of the cylinders before and put new seals in, I upgrade the seals and use a U-cup seal intead of the standard o-ring style. They seem to work better.

The chassistech ones screw off from the top and bottom.

Where can I get the seals to rebuild them? The cylinders are 4" OD thats all I know of them. I got them used.

Chris

Ive got the ones from Chassistech on my eclipse & when they start to leak down from
the bottom port I find that if I take them off, tear then down & clean them really good with wd40 it removes the dirt & shit that gets trapped in between the seals & cylinder shaft causing it not to seal up. Ive had this
happen a few times & after I cleaned them they stopped leaking...sometimes your seal may be bad & it needs to be replaced. The small filters that you can get work really good. All the problems Ive ever had were from my rear cylinders...put the small filters on them & I havent had any more problems. Except for when its cold as hell & all cylinders leak alittle then lol!! Anyway if you can take it apart, then do so & clean it out & if it still leaks then you may be able to replace the seal & if not then youll have to buy another one! Hope all this helps.