I have never been one to "tinker" with the inner workings of my PCP rifles, but today my fill port on my Edgun R3M started leaking. Any ideas and is this an easy fix..??
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Matador Leak
- Thread starter Broberts1
- Start date
Yes easy fix. The little O ring under the C/S cap screw tends to dry out and is exposed to high pressure and heat if filled too quickly.
A trick to try first is to smear a blob of 100% silicone grease into the base of your foster fitting on your fill probe (or remove your probe from the whip line if it is directly threaded on and put the silicone directly into the probe) and fill your Eddy with a good fast blast of air. if it is a dry O ring this trick will normally fix it.
If that doesnt sort it then you will find the O ring is damaged, there is grit under it or has gone hard... either way it needs to be changed.
You need to TOTALLY empty your air cylinder by shooting it down to about 90bar then use a screw driver or similar to depress the hammer against the valve until ALL the air is out.
Next remove the manometers threaded front collar and three radial M5 cap screw from the front of the cylinder and slide the front plug out.
Replace the O ring under the M3 C/S cap screw with a 005 N70 (2,57 х 1,78) and lube it with silicon grease. The little screw just needs to be finger tight.. just enough to compress the O ring slightly. Too tight and it wont fill, too loose and it will leak.
Its a good idea to change the front plugs outer O ring while you are in there, (25mm ID x 3mm N70) lube it with silicone grease and refit the front plug carefully as not to cut it on the holes in the cylinders wall.
Easy for anyone to do but be sure you have bled ALL of the air out before you even think about removing the 3 cap screws.
Regards, Wingman
A trick to try first is to smear a blob of 100% silicone grease into the base of your foster fitting on your fill probe (or remove your probe from the whip line if it is directly threaded on and put the silicone directly into the probe) and fill your Eddy with a good fast blast of air. if it is a dry O ring this trick will normally fix it.
If that doesnt sort it then you will find the O ring is damaged, there is grit under it or has gone hard... either way it needs to be changed.
You need to TOTALLY empty your air cylinder by shooting it down to about 90bar then use a screw driver or similar to depress the hammer against the valve until ALL the air is out.
Next remove the manometers threaded front collar and three radial M5 cap screw from the front of the cylinder and slide the front plug out.
Replace the O ring under the M3 C/S cap screw with a 005 N70 (2,57 х 1,78) and lube it with silicon grease. The little screw just needs to be finger tight.. just enough to compress the O ring slightly. Too tight and it wont fill, too loose and it will leak.
Its a good idea to change the front plugs outer O ring while you are in there, (25mm ID x 3mm N70) lube it with silicone grease and refit the front plug carefully as not to cut it on the holes in the cylinders wall.
Easy for anyone to do but be sure you have bled ALL of the air out before you even think about removing the 3 cap screws.
Regards, Wingman
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