Edgun short .22

adham

Participant

August 17, 2014 at 10:30 am

adham

Participant

August 17, 2014 at 10:28 am

Ok. This is what i did.
Took out the reg, removed all parts and o rings inside. Cleaned all metal items from excess grease, checked and relubed o ring, found no damage.
As expected, the reg has 130b written on it. Turned the power down 1/4 turn. Put all back together and filled the gun with air.
Turned the HST out 2 turns and and started shooting and adjusting the HST in till i reached the factory level, which i have marked earlier. Then turned it out 1/4 turn. Secured the HST, put the stock back on, filled the gun to 200b and started the following string.
200b to 110b
900-895-896-896-894-893-894-892-892-895.
893-898-897-896-er-896-er-er-er-er.
893-888-892-890-892-892-897-892-891-891.
891-898-896-887-893-894-888-887-888-892.
893-892-892-887-891-893-889-887-886-886.

50 shots . Then fps started going down, so i stopped there.
H 898
L 886
I can live with that 🙂

Thank you all for your advice.
Thank you Ernest for your videos.
And a very big hug for ED for making such a great gun and easy to work on.

My next project is to tune my new bought, lightly used R3 .22 std

sniperlabyo

Participant

August 17, 2014 at 12:33 am

quote Adham:

Hi all,

My matador has been acting funny lately. It was shooting nicely for a couple of tins, but suddenly all went wrong with the speed. I fill to 200bars as per the gun’s gauge and almost 3000psi as per the tank’s gauge. Start shooting nicely
for about 25 shots, then , when pressure goes down to 160bar speed creeps up very high as if it’s getting out of the regulator , then down again at about 120bars. Tried to turn the HST 2 turns out and then in while shooting to desired speed of 900fps. Still , the same problem of the regulated speed persist.

Any ideas ?
Note1: I asked ED and he metioned that it might be gauge issue. But i used tank’s gauge which shoes 3000psi.
Note2: i haven’t touched the reg.

Thanks

indications When oring #1 1.5 X 8.5mm or #2 1.78 X 4.76mm start to leak on the piston, this 2 oring are static—- every time you take a shot the piston move back and forward so they wear out 1st.

acourvil

Participant

August 16, 2014 at 11:58 pm

There are many others here wth more knowledhe of this than me, but I would say that it sounds like the regulator is working and you are falling off the regulator after your 25 shots. My guess (and it is a guess) is that the regulator settled in a bit and the setting is now a bit higher than it used to be. Sounds like it’s time for a little tuning . . . .

adham

Participant

August 16, 2014 at 6:04 pm

quote RIDETOEAT:

Please quote some examples of fps #’s, but without more information it still sounds like either the reg and hst are out of balance or the reg is acting up and needs a good cleaning and looking at. You probably don’t have a reg setter so I would fill to 200 bar, back of the hst by a good bit and adjust it back up from there to see how high the velocity goes, this can indicate a reg that is allowing too much pressure and go from there. Sounds like maybe your reg. ain’t regging for some reason !!

I don’t have a reg tester. But i believe all .22 regs are set at 130b.
I only shot about 1000 pellets with the gun and it was ok for 55 to 60 shot per fill with good regulated speed. Now i fill at 200b and shoot with good regulated speed e.g 880-890 for about 25 shots. When the pressure reaches 160b , the speed goes up 900-910-920 and so on , till it drops again at around 120b.
I did back out the HST 2 turns and in again 1/4 turn at a time while shooting to max speed , then back it out again to 890fps range.
It seems my next step will be checking the reg status. But i thought i consult the expert in here first.

Thanks

ridetoeat

Participant

August 16, 2014 at 5:22 pm

Please quote some examples of fps #’s, but without more information it still sounds like either the reg and hst are out of balance or the reg is acting up and needs a good cleaning and looking at. You probably don’t have a reg setter so I would fill to 200 bar, back of the hst by a good bit and adjust it back up from there to see how high the velocity goes, this can indicate a reg that is allowing too much pressure and go from there. Sounds like maybe your reg. ain’t regging for some reason !!

All Replies