I was able to just push the pin out and the adjuster came out. Maybe the anti-tamper is just for the EUR version? I had a lighter spring (smaller wire dia) which I cut to the same length as the OEM. At 7 turns on the pre-load (just shy of coil bind) I am getting a low 800's string. I haven't found any good replacement candidates yet, so cutting coils from oem one, is probably what I will do.
Very timely post, as I was actually considering putting together a guide on how to access and cut the spring, especially since it was easier than I expected. It will be a pdf document though, I'm not well set up for a video and I personally think an illustrated guide is actually more useful.I was also disappointed with my out of the box shot string, but I must say I'm dang pleased with 24 shots at 32.5 FPE with <1% ES after cutting my hammer spring. I must admit there is a noticeable twang after the shot now though, I might not have seated the spring properly in the adjuster when I put everything back together.
I will have one of the .22 Akela soonIf indeed it has that horrible shot string Crosman will have it back very soon.After all I bought the air gun for the Crosman 5 year warranty and cannot risk invalidating the warranty by opening up the air gun, and replacing the hammer spring with one that gives an decent shot string.Crosman will hopefully learn that 5 year warranty is not a substitute for poor performance.$600 MSRP for an airgun with such a poor performance might have been acceptable 10 year ago.But in 2021 I can buy many air guns (Avenger, Nova Liberty, DAR, etc) that will easily outperform all of the Benjamin "Crapsman" air guns.
The Mrod springs are too big in diameter to fit in the hammer pocket and too short for this application. If you take the 177 spring out, I’d be interested in the dimensions and wire dia. I suspect it is the same spring as the 22, but the schematics I have only cover 22/25.
To remove action, loosen grub screw on trigger shoe and remove stock bolt in pistol grip. The hammer spring will come out with the adjuster, by removing the rear pin. Here is a full dis-assembly video:
With 18.13 gr pellets, mine was starting at ~970 FPS and was down to ~930 FPS by shot 12 and 880 FPS by shot 24 (3k PSI fill and hammer and power adjuster full open). Based on other reports of this platform shooting a nice bell curve/plateau ~850-900 FPS with this pellet weight, I think filling to 3200 would have been worse, not better.
So it looks like there is a spring adjuster than should be turned CCW all the way, and this will improve consistency?
Frankly I dont see the point of unregulated pcps, especially with the avenger bullpup around the corner.