I need someone who is good with STBB's

Steven_Spinosa · 10-26-2007, 12:41 PM

Hi there. One of my prized posessions is a very custom Line SI Promaster, formerly owned by Squid.

I used it for one game day, and it performed admirably. I was kicking it with a team of mostly VM's

Anyway, when I took it apart to lubricate and clean it, and put it back together, it leaks like a stuck pig, from everywhere. I can't trace the source because the sound is uniformly emitted. I've not played with it for a year because of it, and don't want to tear my lucious hair out, so I would like to ship her off to one of you guys who know better. I'm good with Tippmann and Automags, just not STBB's. In return, I have a whaler hopper I used on her you can have, or will paypal you $35 or so if it's not too much of a pain. Your choice.

Should I have posted this in the WTB section? WTB repair time? Eh. Forgive me but it's an odd post.

HP_Lovecraft · 10-26-2007, 01:32 PM

There is a lot of info about Promasters here

With promasters, leaks come from 2 primary places:

1- valve
2- gasline

For the valve, when reinstalling the valve, its very easy to misalign the cupseal/spring, so that it does not seat properly during gas-up, and leaks everywhere. The pins that secure the valve might also be misaligned.
You might have also bunged/scratched one of the valve orings. Check the forward valve oring and look for cuts. Try replacing the front with the back oring

Or maybe the gasline from the rear ASA to the valve is missing/leaking/broken/etc?

nick

Azzy · 10-26-2007, 01:43 PM

When in doubt about finding a leak, submerse it.

Just dry it off and lube properly after you find the stream of bubbles.

Railgun · 10-26-2007, 02:35 PM

Dunk it like Azzy suggested. To make it easier to find the leak I'd also strip it down so it's just the body and air chamber parts that hold the pressure inside. No hammer, bolt or anything else.

If you can work on the Tippmans and Automags then this should be a Piece o' cake. The only spots it can leak from are the air joints and valve body. And given the fact of the spyder compatible valves it would be super easy to find anything you need to fix it.

From my STBB's fun it seems like the most ignored part in the darn things is the valve body Orings. Because they are not intended to move at all a lot of folks forget that they are even in there and slowly drying out and crumbling. If it's a barrel or rear body leak then it's likely coming from the valve body Orings.

And there's some great info in that linked page.

Robertsr · 10-26-2007, 03:44 PM

Dr. Robert is in the house.

I've built back nearly as many of these as the Pukin' Dogs have. In fact, the last one I got running was one that one of the guys on there started and didn't finish.

We'll get it running again.

Steven_Spinosa · 10-26-2007, 05:48 PM

Thanks! I'll send it out after money day happens. I sunk my savings into a CD and my checking is really low thanks to MCB and two boxes sitting behind me right now.

I'll post pics of her just for fun:

I usually run her with a 3.5oz out the vertical ASA, and a Qloader slung under her barrel. Very very balanced that way.

Milky Spore · 10-27-2007, 12:21 PM

I'd try replacing the cupseal and the O-rings on the valve and if there's any near the vertical adapter. I'd also assume you cock it before you air it up.

10-26-2007, 12:41 PM	#1 (permalink)
Steven_Spinosa MCB Member Join Date: Apr 2006 Location: Floriduh	I need someone who is good with STBB's Hi there. One of my prized posessions is a very custom Line SI Promaster, formerly owned by Squid. I used it for one game day, and it performed admirably. I was kicking it with a team of mostly VM's Anyway, when I took it apart to lubricate and clean it, and put it back together, it leaks like a stuck pig, from everywhere. I can't trace the source because the sound is uniformly emitted. I've not played with it for a year because of it, and don't want to tear my lucious hair out, so I would like to ship her off to one of you guys who know better. I'm good with Tippmann and Automags, just not STBB's. In return, I have a whaler hopper I used on her you can have, or will paypal you $35 or so if it's not too much of a pain. Your choice. Should I have posted this in the WTB section? WTB repair time? Eh. Forgive me but it's an odd post. __________________ Look at your PPS Typhoon. If it has "ARGUS" written on it's ram sleeve, I want it back. I was the first owner, and will start keeping $500 in my paypal account to dispense to you immediately. Chain armor made to order. http://www.StalwartArmor.com

10-26-2007, 01:32 PM	#2 (permalink)
HP_Lovecraft MCB Member Join Date: Aug 2006 Location: Southern Maine	There is a lot of info about Promasters here With promasters, leaks come from 2 primary places: 1- valve 2- gasline For the valve, when reinstalling the valve, its very easy to misalign the cupseal/spring, so that it does not seat properly during gas-up, and leaks everywhere. The pins that secure the valve might also be misaligned. You might have also bunged/scratched one of the valve orings. Check the forward valve oring and look for cuts. Try replacing the front with the back oring Or maybe the gasline from the rear ASA to the valve is missing/leaking/broken/etc? nick __________________ www.montneel.com My Myspace nonsense "the evidence strongly suggests that neither Billy nor Adam (Smart Parts) could have invented the electronic paintgun" -Garr M. King, U.S. Judge

10-26-2007, 01:43 PM	#3 (permalink)
Azzy Mod-O-Rator Join Date: Mar 2006 Location: Finleyville, PA	When in doubt about finding a leak, submerse it. Just dry it off and lube properly after you find the stream of bubbles. __________________ Bryan "Azzy" Spiegel Riverside Renegade Paintball / C.C. S.V.S. Plankowner - LPPC#6 "It is my right to be uncommon—if I can. I seek opportunity—not security. I do not wish to be a kept citizen, humbled and dulled by having the state look after me. I want to take the calculated risk; to dream and to build, to fail and to succeed. I refuse to barter incentive for a dole. I prefer the challenges of life to the guaranteed existence; the thrill of fulfillment to the stale calm of utopia. I will not trade freedom for beneficence nor my dignity for a handout. I will never cower before any master nor bend to any threat. It is my heritage to stand erect, proud and unafraid; to think and act for myself, enjoy the benefit of my creations and to face the world boldly and say, “This I have done.” - Dean Alfange

10-26-2007, 02:35 PM	#4 (permalink)
Railgun Post Whore Join Date: Oct 2006	Dunk it like Azzy suggested. To make it easier to find the leak I'd also strip it down so it's just the body and air chamber parts that hold the pressure inside. No hammer, bolt or anything else. If you can work on the Tippmans and Automags then this should be a Piece o' cake. The only spots it can leak from are the air joints and valve body. And given the fact of the spyder compatible valves it would be super easy to find anything you need to fix it. From my STBB's fun it seems like the most ignored part in the darn things is the valve body Orings. Because they are not intended to move at all a lot of folks forget that they are even in there and slowly drying out and crumbling. If it's a barrel or rear body leak then it's likely coming from the valve body Orings. And there's some great info in that linked page. __________________ Model airplanes are cool too!

10-26-2007, 03:44 PM	#5 (permalink)
Robertsr Ultimate Battle Monkey Z Join Date: Apr 2006 Location: Waynesboro, VA	Dr. Robert is in the house. I've built back nearly as many of these as the Pukin' Dogs have. In fact, the last one I got running was one that one of the guys on there started and didn't finish. We'll get it running again. __________________ Geriatrically Assured Destruction

10-26-2007, 05:48 PM	#6 (permalink)
Steven_Spinosa MCB Member Join Date: Apr 2006 Location: Floriduh	Thanks! I'll send it out after money day happens. I sunk my savings into a CD and my checking is really low thanks to MCB and two boxes sitting behind me right now. I'll post pics of her just for fun: I usually run her with a 3.5oz out the vertical ASA, and a Qloader slung under her barrel. Very very balanced that way. __________________ Look at your PPS Typhoon. If it has "ARGUS" written on it's ram sleeve, I want it back. I was the first owner, and will start keeping $500 in my paypal account to dispense to you immediately. Chain armor made to order. http://www.StalwartArmor.com

10-27-2007, 12:21 PM	#7 (permalink)
Milky Spore Active Member Join Date: Oct 2007 Location: West Springfield, MA.	I'd try replacing the cupseal and the O-rings on the valve and if there's any near the vertical adapter. I'd also assume you cock it before you air it up. __________________ Xtreme Paintball My Feedback

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