Low velocity issues.

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06-19-2013, 07:59 PM
steve_81

Low velocity issues.

Cant seem to get my Classic valve to shoot above 233 fps. I just put all new fresh o-rings in and oiled it up but it will not shoot above 233 fps. It has Hill's efficiency insert installed. The velocity nut is screwed almost all the way in. Any suggestions?
06-19-2013, 08:59 PM
Nobody

take the insert out and rechrono, see if that's the problem.
06-20-2013, 05:59 AM
athomas

It sounds like you can't get enough tension on the regulator springs to get to the higher pressure required to use the smaller chamber. Try adding some washers inside the adjuster so that it can push the regulator assembly in farther before the nut bottoms out.
06-20-2013, 07:07 AM
steve_81

Quote:

Originally Posted by athomas

It sounds like you can't get enough tension on the regulator springs to get to the higher pressure required to use the smaller chamber. Try adding some washers inside the adjuster so that it can push the regulator assembly in farther before the nut bottoms out.

Thanks for the suggestion. I will try that out as soon as I get more air this weekend. I'm going to spend the day at the field trying to fix the problem. It makes sense. The velocity continued to rise as I turned the velocity adjuster in until I couldn't turn it anymore. Is there any other thing that I should check as well? I will update this thread Once I try all that is suggested.
06-20-2013, 08:09 AM
need4reebs

Quote:

Originally Posted by steve_81

Thanks for the suggestion. I will try that out as soon as I get more air this weekend. I'm going to spend the day at the field trying to fix the problem. It makes sense. The velocity continued to rise as I turned the velocity adjuster in until I couldn't turn it anymore. Is there any other thing that I should check as well? I will update this thread Once I try all that is suggested.

any pics? wat kind of velocity adjust is it?
06-20-2013, 08:26 AM
steve_81

The velocity adjuster that is off to the side is the one that was on the valve when I initially tested the valve. I put a different one on it afterwards to see if that would work when I go to diagnose it this weekend.

http://i1300.photobucket.com/albums/...ps9328cad3.jpg
06-20-2013, 08:30 AM
need4reebs

is the threaded area on both velocity adjusters the same? if it is you will prolly have the same issue? how does it work with the OG velocity nut? any pics of the spring pack???
06-20-2013, 08:59 AM
steve_81

Quote:

Originally Posted by need4reebs

is the threaded area on both velocity adjusters the same? if it is you will prolly have the same issue? how does it work with the OG velocity nut? any pics of the spring pack???

I didn't even think about that, the new one i put on the valve actually has a longer threaded area, 2 threads longer. I don't have the original velocity nut. thought I had a spare velocity nut laying around to try but unfortunately didn't find one.

http://i1300.photobucket.com/albums/...ps0e0676f9.jpg
06-20-2013, 10:17 AM
need4reebs

hopefully thats all it is then...and you can try to use a few spacers in the velocity adjuster to see if that helps? but i would try everything suggested so you know for a fact whats going on with your valve.
06-20-2013, 08:32 PM
athomas

I suspect its the non-AGD velocity adjuster that is giving you issues. The washers will help with that.
06-20-2013, 09:54 PM
steve_81

Thanks for the help guys! It sucks not having any air. Cant test anything until Saturday....:tard:
06-26-2013, 05:28 PM
steve_81

Sorry for the long delay, but nonetheless I changed out the velocity adjuster with one that has longer threads and added a shim to the regulator....now it shoots perfect!
06-27-2013, 05:50 AM
athomas

Good to hear you got it working.