Level 5

[captian pinky]

so I picked up this valve and had another hanging around. I know they are between level 5 and 7. Are there certain things that set the 6 and 6.5 apart from the 5 and 7. I'd like to get an accurate description to be able to have it noted and hopefully have a nice article written by bunny that is a bit more in depth.

How many valves were made as level 5's?
How many have not be upgraded?
When was the level 5 valve released?
When did the upgrades to the threaded power tube begin?



http://i86.photobucket.com/albums/k92/ninjasuperman/7117EA8A-B9BC-4303-8A51-4276DAE60705_zpsnvyzhhco.jpg (http://s86.photobucket.com/user/ninjasuperman/media/7117EA8A-B9BC-4303-8A51-4276DAE60705_zpsnvyzhhco.jpg.html)

http://i86.photobucket.com/albums/k92/ninjasuperman/701E3DB9-B039-4C0B-BB18-6AD353E70D33_zpsdosdunu4.jpg (http://s86.photobucket.com/user/ninjasuperman/media/701E3DB9-B039-4C0B-BB18-6AD353E70D33_zpsdosdunu4.jpg.html)

http://i86.photobucket.com/albums/k92/ninjasuperman/1741E788-CAFC-4B92-A112-72175C82966B_zpswyyfjatc.jpg (http://s86.photobucket.com/user/ninjasuperman/media/1741E788-CAFC-4B92-A112-72175C82966B_zpswyyfjatc.jpg.html)

http://i86.photobucket.com/albums/k92/ninjasuperman/05B44CE7-58A9-43C9-B25E-A9B3B7EBD431_zpsbmrr4pau.jpg (http://s86.photobucket.com/user/ninjasuperman/media/05B44CE7-58A9-43C9-B25E-A9B3B7EBD431_zpsbmrr4pau.jpg.html)

http://i86.photobucket.com/albums/k92/ninjasuperman/44460DC3-A2FE-4FA2-ACFB-BB638224E3C5_zpsinrkdmuq.jpg (http://s86.photobucket.com/user/ninjasuperman/media/44460DC3-A2FE-4FA2-ACFB-BB638224E3C5_zpsinrkdmuq.jpg.html)


http://i86.photobucket.com/albums/k92/ninjasuperman/E0B26FFD-0011-4BF2-B8EA-423B6CEBEF97_zpsmomn55cx.jpg (http://s86.photobucket.com/user/ninjasuperman/media/E0B26FFD-0011-4BF2-B8EA-423B6CEBEF97_zpsmomn55cx.jpg.html)

[athomas]

Originally from AGD quote:

Level 5 01/01/91:

Rear nubbin ball drop

Level 5.1 02/11/91:

Milled frame to allow .750 pin

Level 5.2 04/09/91:

Extended, drilled power tube tip
Small ID power tube

Level 6.0 05/18/91:

Drop in sear
One piece barrel
Square spring
Wire nubbin
Large air chamber
Power Feed
Crown Point barrel

Level 6.5 08/21/91:

Extended power piston
Countersinked power tube tip

Level 6.6 11/11/91:

Computer designed power tube tip

Level 7.0 04/01/92:

Expanded air chamber with soldered on power tube tip

[bowcycle]

I think most of those answers can be found in this thread about my old mag with serial 186. (http://www.automags.org/forums/showthread.php?269044-Really-Old-Classic-Mag-Discovering-History)

that was a fun journey.