Canadian Airgun Forum
https://www.airgunforum.ca/forums/

QB78 o ring kit
https://www.airgunforum.ca/forums/topic85834.html
Page 1 of 1

Author:  Trevor [ Wed May 20, 2020 9:42 am ]
Post subject:  QB78 o ring kit

I've been looking around for a Canadian website that has a kit of all the necessary o-rings for the qb78. I've found ones that had bags of the same o-ring but not one that had the full assorted complement. Archer airguns has what I need but refuses to sell to Canadians, which is a shame. Does anyone know where I can get a full service kit for this rifle? I'd like to have the spares at hand when I decide to do any maintenance.

Author:  wesb2007 [ Wed May 20, 2020 10:44 am ]
Post subject:  Re: QB78 o ring kit

I've taken mine apart probably minimum 50 times and the only orings you basically need is the big one that fits the end cap and the valve, and the pellet probe oring. At least in my experience.

Sent from my EML-L09 using Tapatalk

Author:  wesb2007 [ Wed May 20, 2020 10:45 am ]
Post subject:  Re: QB78 o ring kit

Oh yeah and barrel orings 8)

Sent from my EML-L09 using Tapatalk

Author:  wesb2007 [ Wed May 20, 2020 10:50 am ]
Post subject:  Re: QB78 o ring kit

This should cover anything you need
http://scopesandammo.com/storefront/pro ... -kit-p-543
If you talk nice he might stick them in an envelope for a few extra dollars. Not sure, worth a try though. :D
Sent from my EML-L09 using Tapatalk

Author:  Trevor [ Wed May 20, 2020 11:14 am ]
Post subject:  Re: QB78 o ring kit

wesb2007 wrote:
This should cover anything you need
http://scopesandammo.com/storefront/pro ... -kit-p-543
If you talk nice he might stick them in an envelope for a few extra dollars. Not sure, worth a try though. :D
Sent from my EML-L09 using Tapatalk


This is exactly what I was looking for! Now if I could just talk Archer airguns into selling me one of their manuals I'd really be rocking! Many thanks!

Author:  Woody [ Wed May 20, 2020 3:52 pm ]
Post subject:  Re: QB78 o ring kit

You don't really need any manual for the QB78. There is so much info online that you can find any answer you need. If you can't find it, just ask here.

Author:  airmec [ Wed May 20, 2020 4:41 pm ]
Post subject:  Re: QB78 o ring kit

Trevor wrote:
wesb2007 wrote:
This should cover anything you need
http://scopesandammo.com/storefront/pro ... -kit-p-543
If you talk nice he might stick them in an envelope for a few extra dollars. Not sure, worth a try though. :D
Sent from my EML-L09 using Tapatalk


This is exactly what I was looking for! Now if I could just talk Archer airguns into selling me one of their manuals I'd really be rocking! Many thanks!


Would that help you?

https://airgunwarriors.com/resources/li ... UMMIES.pdf

http://flyingdragonairrifles.org/PDFs/QB78_manual.pdf

Author:  Trevor [ Wed May 20, 2020 6:29 pm ]
Post subject:  Re: QB78 o ring kit

airmec wrote:
Trevor wrote:
wesb2007 wrote:
This should cover anything you need
http://scopesandammo.com/storefront/pro ... -kit-p-543
If you talk nice he might stick them in an envelope for a few extra dollars. Not sure, worth a try though. :D
Sent from my EML-L09 using Tapatalk


This is exactly what I was looking for! Now if I could just talk Archer airguns into selling me one of their manuals I'd really be rocking! Many thanks!


Would that help you?

https://airgunwarriors.com/resources/li ... UMMIES.pdf

http://flyingdragonairrifles.org/PDFs/QB78_manual.pdf

Definitely helps! I was looking mostly for a manual on how to get to all the o rings that will need to eventually be replaced. I can put together quite a bit from those two sources. Thanks!

Author:  Gippeto [ Thu May 21, 2020 12:27 am ]
Post subject:  Re: QB78 o ring kit

Can order from several places, nothing exotic size wise on a qb.

Barrel orings are 012..regular 70D buna n are fine. Debur the receiver id and you'll save on future replacements.

Valve and end cap are 113 Might wish to use 90 duro urethane here, but can get away with 70d buna n if you don't mind tearing down and replacing them once in a while. They will absorb co2 and swell...if you need to take the gun down, degas and set aside overnight first.

.22 cal bolt should be 005, not sure on .177...good bet is 003.

Bit of ice maker tubing for the transfer port.

Silicone grease as assembly/oring lube...any hardware or auto parts store will have something...dielectric grease, brake grease, some plumbers greases...just check the ingredients.

Al

Page 1 of 1 All times are UTC - 5 hours
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/