TargetTalk

I have developed a very slow leak at the gauge end of the cylinder (water test proves it)
How do I go about replacing the O ring seal ?
First I need to know about removing the clear plastic cover and then what ?
I know enough to drain the air pressure
Any help would be greatly appreciated
Also where to get the O ring would help
Thank You
Dennis

I dealt with this a while ago. Apparently the leak is most likely from the gauge itself, and not just the seal between the gauge & the cylinder. There are also different vintages of gauges, some of which are more prone to leaking than others.

Seals can be purchased from Nikkonos in Canada.

http://stores.ebay.com/Olympic-Marksman-Equipment

If it's the gauge and the cylinder has a few years on it, it's probably cheaper to get a new cylinder. That's what I ended up doing.