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Old 19th September 2016, 04:17 PM
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Default EV2 reg o'ring

Hi Guys

Took Francois EV out the case and it had lost all it's air.
Tried to fill her up but air is leaking from the reg bleed hole.

Am I right in assuming that it is the o'ring inside the reg that's faulty.
I have taken the reg apart and the o'ring is hard and flat.
If so, anybody perhaps know the size of the ev mk4 reg o'ring.

thanks
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  #2  
Old 19th September 2016, 05:51 PM
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Ok

I have been trying to measure the o'rings for size. They are flat so I am having to estimate it a bit.

Small one that sits under brass plug under delrin adjuster looks like a BS008 and the one on the piston looks like BS012.

Can anyone confirm
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Old 20th September 2016, 03:01 AM
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Kevin, get rid of that EV and get a proper FT rifle!!!! Hahaha
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Old 21st September 2016, 08:58 PM
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OK can confirm

the 2 o'rings in reg:

small one at base of reg beneath grub screw/plug.
BS008 90 SHURE polyurethane. I used NBR90 as could not find poly.

large o'ring BS012 NBR70.

Installed them and works perfectly.
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Old 21st September 2016, 09:01 PM
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Hi Robbie

Wish I could, Francois grown attached to the damn thing.

I have 2 LG110's for benchrest. Might try and sway him.
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