I bought a refurb Air Hawk months ago and simply stuck it in a safe after shooting a few pellets. I wanted a project to work on since I finally have my shop done.
I started by completely disassembling the gun and deburring. I don't typically work on springers, so all I have is pcp stuff. I used Dow Corning 111 Molycote on the spring, spring cup, and piston seal after cleaning up the stock seal and squaring up the main spring. I did hone the compression chamber and added a buffer.
The results with 7.8gr jsb's were 830fps avg with an ES of 15fps. The shot cycle has smoothed out and I am pleased with the results of my first official springer tune. For a $40 refurb, I can't ask for much more.
I started by completely disassembling the gun and deburring. I don't typically work on springers, so all I have is pcp stuff. I used Dow Corning 111 Molycote on the spring, spring cup, and piston seal after cleaning up the stock seal and squaring up the main spring. I did hone the compression chamber and added a buffer.
The results with 7.8gr jsb's were 830fps avg with an ES of 15fps. The shot cycle has smoothed out and I am pleased with the results of my first official springer tune. For a $40 refurb, I can't ask for much more.