Lelya .177 unstable FPS
took her out for some targets shooting and noticed right away that something was wrong. Turnd out the hammer spring adjustment was loose…Readjust and tighten it back up and took another shot. But still doesn’t feel right.
This Lelya is 4 yrs old with no issue till now. I been trying since yesterday to figure out what’s going on. Lost count of how many times I run it over the chrony but always the same result, doesn’t matter how the hammer spring is adjusted the FPS alway started low and increases with each shot count. This is driving me crazy
Hope someone can point me in the right direction. Thanks
shot string with JSB .177 10.3gr
1. 671 @200Bar
2. 674
3. 680
4. 689
5. 702
6. 707
7. 709
8. 712
9 723
10. 721
11. 738
12. 718
13. 760
14. 757
15. 762
16. 770
17. 778
18. 792
19. 803 @160Bar
20. 809
21. 799
22. 823
23. 830
24. 829
25. 844
26. 847 @150bar
27. 850
28. 849
29. 858
30. 853
31. 847
32. 848
33. 844
34. 843 @130bar
35. 831
36. 825
37. 823
38. 816
39. 815
40. 800
41. 807
42. 803 @110Bar
All Replies
Well done !
Hope it stays that way…….. :biggrinn:
After reading wingman post I decided to take another look and open her back up. After taking measurement and making marking I removed the inner regulator adjustment screw. On the reg screw there’s an O-ring and I can see that it not in good shape. Luckily I got in on the group buy for Edgun orings so it was an easy fix. I replaced the oring and put the reg screw back in and turning it 1/4 clockwise from the original marking.
I’m happy to say all is good. Thanks guys
JSB 10.3gr @ 200 bar
1. 795
2. 793
3. 792
4. 789
5. 796
6. 794
7. 804
8. 794
9. 796
10. 791
11. 790 @180 bar
12. 793
13. 794
14. 787
15. 795
16. 792
17. 790
18. 796
19. 792
20. 791
21. 798 @ 140 bar
22. 789
23. 792
24. 794
25. 794
26. 794
27. 790
28. 794
29. 792
30. 799
31. 796 @ 120 bar
32. 795
33. 791
34. 790
35. 793
36. 794
37. 791
38. 795
39. 795
40. 791
41. 797 @ 120 bar
42. 798
43. 794
44. 791
45. 789 @ 110 bar
46. 786
Why do you want a new one? Regs are very simple devices that can be serviced, if its not a leaking O ring it could just be that the plastic seat wants re surfacing to get a seal.. send it to and Air gunsmith such as Ernest to service.
Sorry to hear.
Sent from my iPhone using Tapatalk 2. This POS iPhone sucks though …
My Lelya will be out of commission for awhile. Tony don’t have the reg in stock but will find out how long it will take to get one. I’m hoping it will be a few weeks and not months. Man this really suck.
Will contact Tony hopefully he have it in stock.
does ed use a common regulator for the lelya and the edgun?…. hope so for u.. keep us updated
Yep…
looks like u have a bad regulator
I turned the reg 1/4 clockwise. I also see 120 written on the regulator after taken it apart.
Put everything back together and added air…no leak so I’m feeling pretty good. But it was not meant to be.
Take a couple of shots over the chrony and adjusted the HST but the result is about the same. I tried everything with the HST..screwing it all the way in and gradually backing out and vise versa. And always the same result. After refill to 200 bar the fps start tin the 600 range.
1. 660 @200bar
2. 666.
3. 677
4. 685
5. 691
6. 688
7. 692
8. 696
9. 694
10. 704
11. 716 @180bar
12. 727
13. 732.
14. 744
15. 753
16. 751
17. 754
18. 764
19. 768
20. 774
21. 769 @160bar
22. 795
23. 777
24. 779
25. 791
26. 798
27. 804
28. 802
29. 802
30. 813
31. 823 @140 bar
32. 821
33. 828
34. 827
35. 827
36. 837
37. 822
38. 830
39. 821
40. 816 @120bar
The trick to setting the reg is to know the max velocity of the reg by adjusting the HST until the fps stop increasing and then fall.
I would caution against turning the reg in too far. If you do so when you let the air out the reg will shut off and there will still be pressure in the airtube even though the gauge reads zero. :confusedn:
If the screws that hold the ends on the air tube are hard to unscrew (meaning they rub and bind against the airtube) then there is still air in the tank! :butkick:
I’d adjust the reg by no more than 1/4 turn before you find out where it is initially set. 😉
Clockwise (close) to decrease / CCW (open) to increase. Go by 5 minute increments – think of one full turn as 60 minutes.
There you see – easy job ! :fishinghole:
lol well I got the regulator out. You guys were right that was pretty simple. I was all stressed out for nothing.
Replaced the O-rings and cleaned everything up. Should I adjust the regulator now since it’s apart. I want to shoot around 790fps.
I was shooting about 850fps before. If so do I turn the regulator screw clockwise or counter to decrease speed.
It´s an easy DIY job but i understand if it feels awkward the first time. Just make sure you let ALL the air out before diving into the airtube and you will have no problems. Take pics as you go would you get lost you can check how those parts looked before disassembly.
Like said it´s very easy job though and you´ll be amazed just how easy it was once you´re done.
- You must be logged in to reply to this topic.
Ah, kind of figured you’d changed out that o-ring when you tore it down the first time. :whistle: