Can't get the velocity up..

[misnblu]

When the hoses are installed incorrectly, the bolt action goes toward the front, toward the barrel, not toward the back of the marker. When they are installed correctly, the bolt action is toward the rear of the gun and that is the way it is now shooting.
I know this and yes, it is hosed correctly. I learned this awhile back from trial and error.
I think I have it figured out and yes, it may be blowback so I will take it from there. It's the only thing that I can think of and I probably have it timed too close.
When I did the tissue test, I didn't have a ball in the breech so I'll do that tonight. If the tissue blows off of the ball feed, then the blowback is causing the problem. I'll know tonight.
Dr Strangelove, when I installed the hinge trigger, I had to reverse the hoses. When I installed the Shocktech pneumatics, I had to reinstall the hoses back to the original configuration and worked fine, just velocity issues.
Parksy, you are probably correct on the timing too close. I'll work on this and probably do have blowback issues. It's starting to make sense now.
Skeet, sorry to confuse you and sorry for not knowing all of the terms used on the cocker. Remember, I'm still new to this and have come a long way in working on my gun.
Once I figure this out, do some retiming of the trigger and sear, should come out ok.
Thank you everyone for the input, you've helped bigtime in what all have said.
It may take a day or two for me to repost back, but will let all know how things came out.
Thanks again.
Misnblu

 

[dr.strangelove]

On the bomb, with the right amount of tinkering, you can get the marker to recock and fire semi-correctly (seemingly correctly) even with the hoses the wrong way. So just make sure that the hoses are as I described (front of the ram - back of the three way, back of the ram - front of the three way). Bomb's are tricky like that.

 

[jahlad]

it is possible that you have the hoses the wrong way round but it is more likely that you have timed it close, which is not a prob, you can get round it by changing your valve spring for a softer one....this will open the valve for longer when you fire....try to use the softest main spring you can otherwise you will slow down the cocking of the marker and slow your rate of fire.

first id read what the doc wrote about the hoses above, or look for a diagram....just to make sure you have em the right way.

then start fiddling

 

[Skeet]

so i was kinda right initially, then also spotted a potential problem....didnt know that the bomb 3 ways confuse the issue more...i thinki did quite well, as im not quite used to diagnosing cocker problems as some think!!!

hope it gets sorted mate!

 

[misnblu]

I went ahead and retimed the thing to have a longer trigger pull, have the firing of the gun in the first 1/4 of the pull of the trigger and the recocking in the 1/2 way point of the pull and removed the rest of the slack from there, in the trigger pull.
The gun fires more consistently, with less burping or farting as I call it.
It still isn't going over 250 fps but must resweetspot the inline reg and go from there.
I see the need for a spring kit and valve tool too.
Too bad no one in my area have autococker parts to buy locally.
Yes, it was timed too close causing blowback with such a short dwell between the firing and cocking of the marker.
I learned something from all of this too and thank everyone here for their patience in all of this.
I'll let all know tomorrow on how the sweetspotting goes and the final fps adjustments.
Thanks again.
Misnblu

 

[misnblu]

Well, I'm happy now.
I got the timing right, at the expense of a slightly longer trigger pull.
The timing was too close between the firing point and the recocking point which brought about some major blowback.
Once I studied the animated picture of the autococker (thanks Moody Paintball ) and realized that it was way off.
I thank all of the ppl that did have valuable input and am now proficient at timing my autococker.
I've now got the fps at the 280-290 range with lots more to go if needed.
Three tourneys in 4 weeks will need my gun to shoot good and straight with less bounces from lack of fps.
Thanks again for all the help here.
Have a great weekend.
Misnblu