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Old 01-18-2013, 09:26 PM #1
Join Date: Jan 2013
Etha leaking massive air

just got a new etha and tuned up velocity to about 260 fps only to have it leak massive air. had it looked at and totally tore it apart myself looking for a bad o-ring. found nothing, combed through manual for suggestions and discovered a couple things.

Problem: marker had wrong sized o-ring on valve body - 017 nbr 70

looked at manual page 15 which depicts 4 o-rings, there are actually 5

pulled off each o-ring on valve body and compared to rings on pgs 58 and 59 of manual

installed o-rings 020, 017 and 2x18 - installing 2x18 fixed leak and allowed me to crank velocity to max without leak, awesome

combed through manual to see where 2x18 is used and couldn't find a schematic that shows it. fortunately the spare parts kit has labels and has a very nice stock of spare parts.

compared factory installed/shipped o-ring to rings on pages 58 and 59 and saw the ring most closely matches to 017

problem solved.

Last edited by crazeeballer : 01-18-2013 at 09:31 PM.
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Old 01-21-2013, 05:04 AM #2
Nicky T
Eclipse Customer Service
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Join Date: Mar 2003
Location: Planet, Manchester
 has been a member for 10 years
Nicky T works for a Paintball manufacturer
Nicky T supports Bob Gurnsey
Nicky T plays in the APPA beginner division
You are best using either 020 NBR 70's or 20x2 NBR 70's for the Valve Body
Any feedback is always welcome. Email me at with your comments.

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