Slavia 618 Air Rifle Piston Repair
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- เผยแพร่เมื่อ 27 ก.พ. 2021
- I found an old Slavia 618 air rifle, in my attic, that belonged to my grandfather. The rifle didn't work, so I fixed it to the best of my ability with the available tools. Screwdrivers, hammer, hot glue, a welding machine, silicone spray and some elbow grease.
The rifle works even though the welding is not great but with how much space I had to weld it's more than satisfactory. The leather seal was fried because of the welding so I replaced wit with HOT GLUE which works surprisingly well as a sealant, at least for those couple of test shots I did.
How much hotglue did I use? I think 1 and a half stick, 1 stick being 10cm long. Then I spun the piston around until the glue got cold to the touch and I roughly molded it with my fingers to the desired shape.
I cleaned the rifle body with some soapy water and a toothbrush but I don't think it made any difference as the gunk buildup was quite heavy. Lastly I used some silicone spray to lube the rifle body and the piston.
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I rebuilt a beat up Slavia 618 recently. The seal was gone, so I removed the old one and made a new seal from genuine leather to match the original. There is no screw where the seal goes, but the only satisfying solution I found for that is "tapping" the hole to create screw threads. After that, I was able to squeeze the leather piston seal in and secure it with a screw (which is most common in old air rifles). It shoots great now. Hot silicone doesn't hold over time, and I doubt it's good for the housing, since it shreds and melts with heat/friction. As for the broken metal part in your example, if I were you I'd weld it from the top after removing the top rivet and drilling a hole through the thing. The rivet can be welded back on after that. I am only theorizing here since I haven't had that problem, but I don't see why it wouldn't work well. It would make a much stronger weld in my opinion. Thanks for the videos. Great stuff!
Hello @Abe Aboud, thank you for sharing your approach to the sealing problem. I used what I had on hand so hot glue it was. The glue will most likely not hold long, and I also can't speak how good the weld holds since it was a really tight spot to weld in. However, I didn't use the rifle since I made the video, so if I keep this up it'll hold for a life time ;)
But if I do happen to use it and it breaks down I will try your sealing method. As for the middle latching bar, I think it is made of one solid piece , so in that case it may be easier to cut the top part of the cylinder off with a grinder, weld the bar in place (hopefully straight) and then weld the top part back and grind the outside of the cylinder - but even then there would have to be no excess welding material inside the cylinder so the spring can move freely.
Thanks, greetings from Chile.
Thank you for watching, and late greeting to you from Slovenia.
Hello, I have a Slavia 618, but the trigger is blocked I think it’s the axes but I don’t know how to remove it and place it the good way
Thanks friend, greetings from Mérida - Venezuela. Your video of the repair of this beautiful rifle has been of great help ...
Thank you friend. I am happy to hear that.
Kolk hočeš da še men tako popraviš? sprožil sem med polnjenjem in je odletel en kos tam kjer se bat dol potiska. hvala za dober video, najprej bom sam poskusil popraviti. lp Žiga , Domžale
Pozdravljen @Ziga Vojska nisem strokovnjak za te zadeve, tako da na pamet ne vem kaj je slo pri tebi narobe. Novih delov ne morem narediti saj nisem strojnik, lahko pa kaj privarim. Ce odrkijes tezavo lahko nalozis sliko na kaksen imgur in delis link
Hello i have one quest , on piston seal you have bolt-screw?or cotter?
Hello. I wish there was a screw, it was a rivet or something that I couldn't remove. That's why the leather melted, or whatever was used as a seal, when I welded the center piece.
I have never seen such a thorough repair. 🤮
My trigger is wore out
Hey @Roger Wertz I'm guessing the latching part (hook) is worn out? If that the case what you could try doing is one of the 2 things that come to mind, though I am no expert so maybe someone else can chime in.
#1 you could use a welder to add some material and a grinder to shape it.
#2 you could drill a hole, put a screw inside and grind the screw down. For this you would need a vice or something else to hold the trigger, a drill and a drill bit, you would also need to make threads for the screw, a screw of your choice, grinder to grind the screw to desired shape.
@@jackalldiytech the hole that holds it is wore