Did you check YouTube?
Still no luck. Adding a drop of Kroil two of three times a day and once a day I give it a crank with the wrenches, but nothing doing other than the crescent slipped and boogered the piston slightly......grrrrr. Keeping after it and will add a torch to the mix tonight.
The crescent wrench is only for the gas block. The gas piston requires a fixed size beefy Craftsman wrench, not some adjustable junk.
I wonder if the rifle was previously owned by a member of the "but I always flush the barrel with hot water after shooting corrosive ammo" fan club. Because in the gas block, that's where the corrosive brine ends up and happily festers while sitting in the safe.
Every step above noted. what size wrench are u using? A small one won't do it. Move a size up or two. Keep the action on the stock for more leverage and hold on with your legs. make sure you place well cover underneath the barrel.
IDK how you get a non-crescent "beefy" wrench? Best I can tell a 9mm is about right as a 3/8's is a tad loose and a 5/16's won't fit. None of them are much bigger than a carpenter's pencil. I'll go to Home Depot and see what options I have tomorrow. IF I leave the action in the stock it sure limits the use of a torch I found out today as the wood is going to get REAL hot in a hurry. I'd have to take out the action, heat it up, and quickly drop it in the stock, add tape to not mar the finish of the gas block and crank away with my new beefy wrench.....nothing's easy.