Sheridan Blue Streak Repair

[2ndatrades]

I recently acquired an old 1970s blue streak. When I got the rifle it held air, and I put 1 pellet through it and it was working perfectly. After that first pellet the gun is no longer holding air and it is leaking out of the barrel. I’m guessing this has been sitting in a safe for years. Is this something I could be able to fix myself or do I need to send it to a shop for repairs? If I need to contact a shop are there any reliable shops in the Maryland area? Sorry I’m not too familiar with air guns, but want to get it back in working order.

 

[LS1]

I would try putting some crossman pel gun oil to the seals first, this revived the dried out seals on a similar vintage blue streak for me. There is an article on the web that shows how to rebuild them if something else is wrong besides the dried out seals - rebuild kits are available.

 

[John from MD]

If it has been sitting that long without a couple of pumps of air, the valve rubber has shrunk and needs to be replaced. This link is to the Guru of multi pump Sheridan and Benjamin rifles. He sells parts and also has links to how to rebuild the rifle. Rebuilding is easy but you need to know what valve is required for your rifle. The parts are not that expensive and, if you are handy at all, it is an easy rebuild.

http://www.mac1airgunshop.com/default.asp

 

[Qbeam]

There are special tools to fix the other seals if the pump seal is not the issue. I had to rehab a blue streak, and it was a learning experience.



Q

 

[mauser58]

If it has been sitting that long without a couple of pumps of air, the valve rubber has shrunk and needs to be replaced. This link is to the Guru of multi pump Sheridan and Benjamin rifles. He sells parts and also has links to how to rebuild the rifle. Rebuilding is easy but you need to know what valve is required for your rifle. The parts are not that expensive and, if you are handy at all, it is an easy rebuild.

http://www.mac1airgunshop.com/default.asp

Thank You also for the links you posted John. I also have one that needs a new seal. Mine is a 25 caliber though.

 

[John from MD]

There are special tools to fix the other seals if the pump seal is not the issue. I had to rehab a blue streak, and it was a learning experience.



Q

What special tools? I have rebuilt a dozen or so and the only special tool I can thing of is maybe an arbor press for the spring pins on the pump lever but you can use a hammer and drift pin as well. After you remove the trigger group, the valve can be pushed out with a dowl that has a hole drilled in the center.. If you don't want to rebuild it, you can buy probably buy a complete valve from MAC1 airguns. The only thing you have to determine is what type of valve you have. One is welded the other is screwed together.

 

[2ndatrades]

Thank you all for the suggestions. This will be my next project one way or another. I can’t wait to shoot it again.

 

[Qbeam]

What special tools? I have rebuilt a dozen or so and the only special tool I can thing of is maybe an arbor press for the spring pins on the pump lever but you can use a hammer and drift pin as well. After you remove the trigger group, the valve can be pushed out with a dowl that has a hole drilled in the center.. If you don't want to rebuild it, you can buy probably buy a complete valve from MAC1 airguns. The only thing you have to determine is what type of valve you have. One is welded the other is screwed together.

You can fabricate the tool to change the seal at the back of rifle action, and the threaded ring. I just bought one from one of the repair sites. There was also the rehab kit that had all the seals for the rifle.




Q

 

[John from MD]

I know what you are talking about now, you are talking about the o ring on the bolt for changing it without taking it apart. Yes, that would be worth while unless you had three hands.