Eclipse ASA / o-ring question

[Parksy]

Anyone know what size o-ring will snugly fit inside the screw in section of an eclipse on/off purge?

My preset when I screw it in typically has the fill nipple sticking straight out the side. I'm thinking with an o-ring at the back of the inside screw in section this should be enough to have to screw it in a quater turn less before it is tight

Anyone got an idea?

Ta muchly.

 

[Tom Allen]

An 015 should do, but you may find that the valve doesn't open fully if you limit the inward travel of the preset. Can't you swap the gauge for the fill nipple.

 

[Tom Allen]

You could make up a thin plastic washer, that would be a bit more effective.

 

[Parksy]

Me swap a guage for a fill nipple. Way to technical for a northerner like me

The small washer might just give it enough to get what I'm after though

 

[Tom Allen]

I've made thin washers before to align the anti siphon tube on co2 bottles, same thing really.
The important thing to remember is to make the adjustment as small as possible, so the pin still actuates the valve, and the o-ring still seals in the chamber.