A little help needed removing a very difficult to remove O Ring

[HogKiller]

Update. Thank you all. You were great help. I made my own tool as VETMX said and I ordered a set of dental picks as Patrick suggested. Both worked well, but I found the real secret to doing this easily was to puncture, pry out and push down, not pull up. Continue pushing down and then twisting the 90 degree end hooking the then stretched O ring. Then, simply pulling it out. Just to prove that was the best technique, I did it 3 times.

We anxiously await the 58 minute YouTube video.

 

[Venon]

Hi everyone! A report on how I tackled the very stiff O-ring inside the receiver bore. I blew with high air pressure inside the bore first, but since the O-ring was very stiff, it did not budge. I dropped some acetone on one side of the O-ring a number of times and break cleaner on another section. Neither made a great difference. Eventually, as Stubbers had suggested, I used a needle to melt away part of the O-ring. The needle was not doing a lot of melting as as soon as it touched the O-ring, it started cooling quickly. Then I took a very simple soldering iron with a needle nose tip, made the tip more slender and then heated and bent the tip and then using the sustained heat I managed to melt the O-ring on one section and melted a second section a quarter of the way on the O-ring and eventually that section came off and then using a plastic pick I had made with the body of a pen with a bent tip, I scraped the O-ring off completely.

 

[7Green]

Harbor Freight dental picks, nice selection and y can’t beat the price. Used them on my FX Crown getting a oring out below the regulator.

Amazon too

 

[Venon]

Thank you for suggesting Harbor Freight Picks. I will get them

 

[Farren]

Can get the same o-ring out. It's looks particularly deterated, is there something you can apply to melt the o--ring with out hurting the aluminum

 

[HogKiller]

Can get the same o-ring out. It's looks particularly deterated, is there something you can apply to melt the o--ring with out hurting the aluminum

No no no no no and.......NO. Dental pick, a SHARP brass pick or a needle, you're just trying to get it started out of that Y^%$ groove, then use some long self closing tweezers. https://www.amazon.com/gp/product/B073SJD7L5/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 to pull it out. The key is patience, lots of it.

 

[Farren]

Thanks, ill keep trying with my brass picks

 

[Scotty1]

Thanks, ill keep trying with my brass picks

A large needle is a much better tool. As described above, stab the o-ring, and pry/roll it out of the groove.

 

[Trucker3573]

A large needle is a much better tool. As described above, stab the o-ring, and pry/roll it out of the groove.

This and exactly why I am down to one FX rifle. Was going to sell it as it has 2 of those complete PIA regulators but the market on them stinks so I have decided to bite the bullet and try to endure it when it ever comes back from this exact repair as I lost my mind just changing the little oring in the bottom of the reg so I sent it off. Lol. Probably will never buy another gun with an amp reg.

 

[steve-l]

It is natural to try to pick the O ring up and out. What works better is to pick the O ring down into the hole and then once out of the retention groove, simple tweezers to remove.

 

[BlackICE]

When I know I'm have the right replacement o-rings, I stab them, being careful not to poke the groove, lifting them off the groove and use small cutters to cut it. Easily than trying to wrestle them off the groove.