Air Arms Owners Club

Well the pro elite has been stripped down today and a tbt short stroke extension added. I have also added a new HW seal and also chopped the 4 dead coils offs the spring.
Test fires showed it was producing 9.5lb.

After talking to a very knowledgeable guy Jon Budd he suggested i lightened the piston, which i have done. Three slots have been cut out down its length, and i have also replaced the spring guide and piston weight with a delrin one i knocked up on the lathe.
The piston weighed in at a tad short of 400 g As Well as the collapsed coiled and extra piston weight it was a wonder it produced the 9.5lb.

I will put it all back together in the next few days and will share my results.

BBF

Just stop now and walk away before it's too late!, the devil takes yet another into the dark art of springer tuning / fettling
Good luck, sounds like you are already on the right path, keep us posted

Well, did it live up to expectations? You've got us hanging on the edge of our seats waiting for results!

It seems a lot smoother in its cycle. I'm trying to put as many pellets through as I can to bed the new seal. She's running at just over 10 which is ok. I still have a few washers I made if needed.

BBF