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Is this crazy or will it work??

April 29 2017 at 10:34 PM

ray1377  (Login ray1377)
Crosman Forum Member
from IP address

I have a slow leak on my benjamin discovery.
I've listened and don't hear any "hissing" or releasing of air.
I've taken it apart and replaced all the o-rings in the pressure tube.
The two on the front side of the valve, the two around the gauge block, and the one at the filler end.
I also replaced the little o-ring underneath the pressure gauge.
And it still has a slow leak.
I'm thinking one of two places.
Either the check valve in the foster fill fitting, or the exhaust valve?
I can't really check the exhaust valve short of replacing either it or the entire valve assembly.
But I did have a thought how to check the foster fitting.
Could I not take a kids party balloon and fix it around the filler port with a zip tip or something and then see if the balloon expands over a short period?
Would this not tell me if it got a slow leak there?

This message has been edited by ray1377 from IP address on Apr 29, 2017 10:36 PM

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