I tune and repair springers and PCP's for family and friends, I am a retired Tool & Die Maker and automation engineer and have lathe, Bridgeport mill and other shop equipment and precision measuring gauges.A friend of a friend wanted me to look at his FWB124D that would no longer shoot a pellet out of barrel. I worked on pretty much all the HW Weirauch/Beman German made springers and Air Arms springers but never a FWB, I agreed to take a look at his gun. However before tearing down his gun I came across a used like new 124D with same issue so I purchased . I watched a video on disassembly and it was pretty simple process, turned out that all of these FWB124 springier suffer the same issue. Disintegrated piston seal pounded into end of compression tube. I use a modified brass jag to pick out the pieces embedded into compression tube, cleaned everything up and installed a new ARH Pro Mac Kit with new seal and spring assembly.I used Tar, moly and some super lube on safety slide. Reassembled using my trusty robust spring compressor. I cocked and uncocked rifle several times before shooting, each cocking cycle distributed lube and rifle smoothed out. Also installed new breach seal and lubed barrel pivot with moly. I shot gun about 100 times using JSB Exact 8.44 gr pellets, pulled out FX chronograph and gun was shooting around 850 FPS so power has been restored and then some. The more I shoot this gun the silkier it gets. Then I installed Sportmatch Mounts and a Hawke scope and shot some groups and was blown away by this guns accuracy. Now I understand what all the fuss is about with these guns.
I ordered another kit and proceeded to do customers gun with same results.
One year later I came across another 124 in standard not the Deluxe with same issue, ordered another kit and installed, I now own two of these guns, both like new, however for some reason the standard version had a little smaller diameter compression tube so I had to resize the piston seal and this gun is about 40 FPS slower in velocity but still shoots incredibly accurate. Both of my 124's look like new and weren't shot very much by previous owners. I think i'll post some photos next.
I ordered another kit and proceeded to do customers gun with same results.
One year later I came across another 124 in standard not the Deluxe with same issue, ordered another kit and installed, I now own two of these guns, both like new, however for some reason the standard version had a little smaller diameter compression tube so I had to resize the piston seal and this gun is about 40 FPS slower in velocity but still shoots incredibly accurate. Both of my 124's look like new and weren't shot very much by previous owners. I think i'll post some photos next.
