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02-25-2008, 12:36 AM
| #1 (permalink) |
| Newbie  Join Date: Dec 2007 | Piranha LB velocity problem. Hi guys, I've got a Piranha LB and no matter what I do with it velocity won't go higher than 265 fps. Nothing wrong with my gun but just won't shoot over265 fps at all. I replaced main hammer spring with little longer one to give more punch but won't help. Please give me some advice. Thank you guys in advance. |
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02-25-2008, 01:03 AM
| #4 (permalink) | |
| MCB Member  Join Date: Apr 2006 Location: NC | has the valve ever been apart? barrel dirty? is the tube where the hammer slides clean and smooth? make sure it's not gummy or gritty. check the hammer too. it might be time for a rebuild and valve tune.
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02-25-2008, 01:03 AM
| #5 (permalink) |
| MCB Member  Join Date: Jun 2007 Location: people's republic of cambrigde  | have you checked they valve spring?
__________________ "you have some soul searching to do. first you have to find your soul...." -Fluff "I say destroy the cosmos, ask questions later." my feedback |
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02-25-2008, 01:22 PM
| #6 (permalink) |
| Newbie Join Date: Dec 2007 | Thanks guys for very kind help. Yes, I took my gun apart, very clean and no leakage. I just don't know whats wrong with it. I own 3 Piranha LB guns and they all about the same velocity. Is this gun (Piranha LB) capable of shooting over 265 fps at all ???? |
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02-25-2008, 02:48 PM
| #7 (permalink) | |
| MCB Member Join Date: Apr 2006 Location: NC | of course it's capable of shooting higher than 265 fps. have you had the valve apart?
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02-25-2008, 03:29 PM
| #8 (permalink) |
| Pump Gun Dealer  Join Date: Mar 2006 Location: Pender Island, BC  | Is the paint you're using small ? Unless you have wedgits or some sort of retention device it's hard to get the older Sheridan's up to velocity since the balls roll down the barrel before the full blast of air hits them.
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02-25-2008, 04:38 PM
| #9 (permalink) |
| Newbie Join Date: Dec 2007 | Yes, I took the valve apart already. I've been using "medium size" paint balls. I also own two "P68SC" guns with new cartridge style valves in them. They are no problem shooting 310 to 320 fps range with little longer springs in them though. I had to lower velocity down to 280 fps! But my Piranha LB I have this problem. |
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02-25-2008, 05:02 PM
| #10 (permalink) | |
| MCB Member Join Date: Apr 2006 Location: NC | did you replace the valve spring or reuse the old one? i'd pull the valve back out and try a lighter valve spring or remove the little brass piece that keeps the valve spring centered and see if that helps. what i really think it needs is a valve tune from PPS if you can spare the cash. that'll solve the problem.
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