Old Late 80's Automag, In need of being brought back to life.

[jersey101]

New Question ???

In reading the diagram of an Automag listed below, It looks as though there are 2 orings just below the on/off pin housing.
The 1st is a smaller teflon o-ring while the second is a larger one that goes around it.

1) Is the larger one rubber?
2) I have seen where the larger one is not even shown in a video (Old viteo) Is the large one needed or otherwise?

Erik

http://www.airgundesignsusa.com/down...plodedview.pdf

[nak81783]

With few exceptions, all AGD orings are urethane 90 durometer cast (not millable gum). One exception is the Teflon on/off oring in Classic valves.

Some valves have a step in the on/off hole, so they only require one oring. I think that is only for old RT and E-Mag valves though, but it may be for some of the old Classic valves as well.

Regardless of valve type, if there is no step in the on/off hole, it needs the aforementioned urethane oring surrounding your Teflon oring.


-Nathan

[athomas]

Some valves have a step in the on/off hole, so they only require one oring. I think that is only for old RT and E-Mag valves though, but it may be for some of the old Classic valves as well.

Only the early retro/RT/emag valves had the stepped indentation in the on-off hole. All classic/AIR valves, newer retro valves, and all X-valves have the flat bottom on the on-off hole.

The larger urethane oring holds the smaller oring in place above the on-off top. In the classic valve the small oring is teflon so that it will work with CO2. In the retro valve it is urethane. In the emag it is a buna quad oring.

[jersey101]

athomes & nak81

Thank you. It looks like mine takes 2!

I aired it up yesterday and nothing but big leak down the barrel after first air shot. I will keep trying to get Power tube spacers, Hopefully they will keep the o-ring in place. The two places I tried over tha last few days had problems with there web site... At least for there ordering.

Erik

[Laku]

Have you tried emailing Tunamart? That's usually the best way to contact him. [email protected]

[Spider-TW]

If the leak stops when you pull the trigger and hold it in you just need to replace the power tube O ring.

Jersey, be sure and post the results of holding the trigger down. Everyone trying to help will get a lot of info from that test (knowing whether is stops leaking or not).

It's best to work through these things yourself (with help), but if you are actually in new jersey, there are "resources" in that area.

[jersey101]

Laku, Thank you for the reply and The Tunamart Email! I did email Tunamart after the orders did not go through, but am not sure if it was that email address. The one you gave me is the next I will try.

Spider-TW I have transplanted from North Jersey to in South Carolina. It would a privilage for me to keep you posted.

[jersey101]

I ordered a power tube spacer ring and was advised that the spring in the power tube likely wore out some time ago.

Will update in time.

[nak81783]

I feel you will have a functional Mag when your parts arrive. Good luck.


-Nathan

[jersey101]

Thanks all,

Looks like 2 days till delivery. Where I ordered it the person was out of town.

Hope it works!

[jersey101]

Spacer is in I will install it tonight & see what happens.

No leeks I hope!!!

[jersey101]

The spacer is in.

Leeks alot.

Perhaps I should buy one off ebay or somthing.

It simply will not stop it's leeking!!!

Erik

[athomas]

What size spacer did you use? Depending on how much wear is on your sear, you may need to use one of the shorter spacers in the kit. Try the 0.215 or 0.220 spacers. They should be the ones that work.

[jersey101]

Athomas,

I used the .220 I am going to check more diagrams to see if i did it rite.

Thank you!

[jersey101]

Opps,

I may not have placed or checked fo a O ring between the spacer and the bottom of the power tube.

If there was none then it may be the fix.

Erik