Things that happen when you do something dumb

OK, for those of you with Impacts (I assume other guns will act the same way), don't do this:

Remove the barrel, fire the gun. I know, I know, it was an accident, as I didn't ensure the gun wasn't cocked. There was no pellet in it, because there wasn't a barrel. So far, three things happened, all bad (and I'm still not sure it's completely repaired)

1. My ears rang and rang. it was really LOUD! Made my .22 sound like nothing. It was more in the line of my 30-06 in noise levels. When it was that loud, I knew something bad had to have happened.

2. The regulator O-Rings were demolished. Wouldn't hold air at all, so had to rebuild the regulator. Considering I've never done anything remotely similar it was an interesting adventure.

Now that the Regulator was fixed I noticed that the valve rod protruded into the area where the magazine should be. 

3. Low and behold, the valve seat was demolished as well. Had to completely dismantle the gun to get to the valve seat, and replace it.

While I'd rather have been shooting, it was incredibly fun dismantling and repairing the gun. Built enough confidence in the process to completely tear down my Marauder, clean it, and install a new regulator as well. That's a big deal to me to be able to tackle repairs on my own.

Cost of a single bad pull of the trigger - Well, I'm notorious for over-buying parts because I hate getting into a repair and having to stop, wait for a part, and then getting back to the repair. So, I Spent close to $150 to make the repair. Most parts from FX. Bought a spare regulator for $45, Repair Kit with a valve seat, rod, o-rings and other stuff for $65, O-Ring kit from a seller on eBay $20, and a bunch of O Rings from the O Ring Store for about $20. Lots of spare parts now, so next complete rebuild should be a breeze.

Still cheaper than sending it to a shop, but pricey. Had I known what I was doing, and all I needed was a selection of O-Rings and a new valve seat, repairs could have been as low as maybe $40 ($10 for the valve seat, 10 for shipping, and $10 - $20 or so for the o-rings). Now, I have a spare regulator and the majority of a valve seat repair kit from FX. It'll all go into my parts bin for future use. I'll also buy a couple valve seats just to keep on hand. A couple evenings of enjoyment tearing down and putting back together, not a bad form of entertainment.

Credit here goes to Mr. Ernest Rowe and the FX Master Series Videos. While the series is specific to the Impact, the theories carry across most if not all PCP's. Slowly, I'm beginning to realize that PCP's aren't all that complex. Lots of moving parts, but in general, they work basically the same way.

And thank you to all of you that responded to earlier posts. Kept my desire to complete the job going. Now, as long as the pressure test is good, back to shooting.

Lastly, please don't do what I did. If you've removed the barrel, DON'T PULL THE TRIGGER EVEN IF IT'S NOT COCKED!

Have fun all
 
Something I've posted before and related to the need to be careful with anything and everything. A few months back I had just driven up and parked at our local range and was watching a fellow shooting handguns as I prepared to step out of the vehicle. He had a bunch (probably 6 or 7) handguns on the stand in front of him with a friend there as well. I would have thought that anyone with that number of handguns would know what he was doing. He picked up a single action revolver, started fiddling with it apparently trying to unload it, and proceeded to shoot himself through the palm of his left hand. We can all make mistakes. Just be careful and try to make them small mistakes when possible.
 
I had a very similar experience. After lowering the reg pressure I realized that I messed something up along the way. After researching I determined it was the regulator, so I ordered an o-ring kit from ebay, additional o-rings from O-rings and more and bought a HUMA regulator (addl o-rings and HUMA purchases were a direct result of impatience waiting for the kit). Last night I installed the HUMA, now the regulator is holding air, but still have a leak! The good news though is due to my impatience I have backups for future issues.

Just like Saltlake58 said, I was uncomfortable at first w/ trying to fix the issue myself but in the end found it kind of fun. Would I have rather been shooting vs fixing? Yes, but once my Impact is up and running again it will be even better since I fixed it myself (of course with the help of you all on AGN!). I get the feeling some members get irritated by people asking old questions, but your help is greatly appreciated by this young(ish) airgunner!
 
After watching Ernest Rowe's Master Class series of videos, I was confident that I could make any normal repair of an Impact. So, I bought one. Sure enough, my previously owned Impact had a leak of the rearmost oring on the valve rod. I tied right into it as soon as the parts arrived. Piece of cake and very enjoyable to boot.

Ernest's videos also reveal just how simple it is to make the Impact perfectly safe before beginning any sort of maintenance operation on the gun. Simply remove the bottle. Then turn the regulator adjustment screw counter-clockwise until the air bleeds from the chamber. Then remove the barrel. No accidents can happen. You still need to make sure that the gun is un-cocked. And if it is cocked, first grasp the cocking lever in it's full aft position, switch the safety to fire, then while holding the cocking lever, simply pull the trigger and ease the hammer off with the cocking lever. If fired, even with no air in the gun, damage can still occur to the valve and seat. 

I agree with the OP. It's fun to work even in the deepest bowels of an Impact after watching Ernest Rowe's Master Class videos. A set of these videos, if they were not already free to watch on Youtube, would be a valuable asset to buy and keep for reference. But they're FREE. Thanks to the goodness and generosity and hard work of Ernest Rowe, FX USA, and Fred Axelsson. 
 
You can shoot yourself pretty easy with a pistol. I gained respect when I was a kid for air rifles. Aimed a Sheridan Silver streak at my foot with no pellet in it and fired the gun. Just the air. Only ever had the desire to try that once. No damage just felt like some one hit my pig toe with a hammer. Stupid didn't think it would hurt. Think about the pressure inside a charged PCP that's nothing to sneeze at.

I had a friend ask me if my Red Wolf 22 cal would be lethal? I told him it was pretty close to a 22 rim fire and that it certainly would be.

People think they are toys. That's a really misconception 
 
BeemanR7 - I've downloaded all of the videos. Invaluable resource.

I did have to buy some tools to do the job, like a couple sets of metric hex wrenches (the ones with the T Handles and another ball-head set), I also created the tools Ernest uses to hold the valve rod, set of metal picks for O Rings, and a set of plastic picks for O Rings that won't scratch anything. Expensive lesson, but incredibly fun. I highly recommend tearing your gun down if you like that kind of thing.

Bubblerboy64 - You are absolutely correct. Can an airgun hurt you, ABSOLUTELY! Careful is best policy.

DBrickashaw - Glad your Impact is up and running as well. Hope to do some testing this weekend if mother nature cooperates. Cold spell hit, so may need some extra warm clothes to do the testing.

thank you all for responding. Love the hobby and love fixing. Great to hear other experiences!


 
Sadly, too busy to get out and shoot. Still has a really slow leak somewhere, so whole order of O-Rings coming tomorrow, will completely tear down and rebuild over the next week or two. The Valve seat did cure some problems though.

I've gained access to a shed where I can setup a chrony on a semi-permanent basis, and will be doing some chrony work as soon as rebuild complete. At the rate I'm moving, that could take a couple weeks, and to be honest, global warming isn't a problem here at present. Snow on the ground, cold temps, so I'll get some lights hung, and a heater going, and go to work.

Making mistakes is part of shooting. I posted this so maybe people can learn from mine and won't repeat. Enough others here have done that for me, so I really appreciate it.
 
I keep soapy water in a 2oz needle bottle to test for leaks. The regulator gauge is prone to leak at it's seal.

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