need help bringing old quest back to life

sleeplessmonkey · 11-14-2010, 07:25 PM

So i have an old Gen 3 dust blue quest that i loved playing with. Coming back to paintball after a long time off and having troubles bringing her back to life. When I originally bought it off of the original owner I had to due the common (at the time) re-solder on the solenoid harness but then worked like a dream. Now after laying around it has given me nothing but problems.

Current setup: Stock LPR spring, stock Gen 3 bolt and bolt pin, stock board, stock trigger, Sidewinder HPR, NDZ bleeding on/off and rail, 45ci 4500 HP Crossfire tank

Here's what is happening when I gas it up now. LPR climbs higher than norm (between 140-200psi, ajusting LPR nut has no effect), bolt moves forward and stays forward, and gas comes through grip. After hunting down the leak it is coming from the solenoid. The air is coming from the holes that don't make direct contact with the body. When the solenoid cycles can hear light pop sound of air trying to move but bolt does not move.

What I have tried to fix this; I have replaced every O-ring (two or three times now) clean and relubed, replaced LPR valve core, replaced solenoid with known good one out of my old DM3. Replaced Solenoid gasket. Tried multiple springs in the LPR, tried various HPR regs turned very very low.

I have read and re-read the stickies and last 10 pages of posts for every idea on how to cure this and now am out of ideas.

I will take any help I can get

Thanks.

Uziel Gal · 11-15-2010, 06:18 AM

Well, if you have followed the o-ring guide in the FAQ, changed the o-rings several times, and changed the LPR valve core, there's not a whole lot left really. Try a little Dow55 on the o-rings to see if you can promote a better seal, and check under the bolt o-rings for hairline cracks.

sleeplessmonkey · 11-15-2010, 06:19 PM

thanks for the advice, is Critical Paintball still doing tech work on quests?

Uziel Gal · 11-15-2010, 07:23 PM

Don't know for sure, but I would be surprised if they couldn't help you out.

Fallinher0 · 11-16-2010, 12:47 AM

What kind of bolt are you using?

snowboardgeek1 · 11-16-2010, 10:04 AM

Quote:

Originally Posted by sleeplessmonkey

thanks for the advice, is Critical Paintball still doing tech work on quests?

Yes they are. Give them a call and ask for James or John Paul. They're very helpful guys an will get you up and running.

Whitey818 · 11-16-2010, 12:56 PM

ya we still do tech work take off ur piston and listen for leaks around your valve core. If its leaking try screwing the valve core in more. if that doesnt fix it best bet is to get a new one. Is the lpr creeping or is it going straight to 200psi?

sleeplessmonkey · 11-18-2010, 06:36 PM

thanks for all of the help guys,

Fallen im using a stock bolt

so valve core is not leaking, pulled apart lpr and core did not leak while under pressure, one of the back bolt pin orings had a hairline cut on it and replacing that carefully fixed bolt forward issues. The lpr jumps straight up to any hpr input pressure, double (well quadruple really) checking orings again, but think it may be the oring on the lpr piston. dont have an exact fit and when i remove the adjustment screw for the lpr and just use an extra washer or two, air is escaping out the lpr cap, also jumps straight to hpr pressure when i do that

Whitey818 · 11-18-2010, 08:01 PM

put your piston into your lpr and see where it sits without air if it isnt flush with the outside rim of the lpr then that is your probly simply drill the bottom of the piston deeper till it fits about flush

sleeplessmonkey · 11-18-2010, 08:09 PM

Thanks. Piston is almost flush, O-Ring sits just under rim of lpr. Was that a common problem? Also I am really noticing the O-ring is not quite the right size, so I have some 011 Buna rings on the way to hopefully fix that.

*** UPDATE ***

After drilling the piston as suggest Quest is running perfectly! thank you so much everyone. Ok almost perfectly, does anyone know where i can find a copy of the manual for the WAS board that still works? Need to set up dwell and FSDO. But good news, LPR is stable at 85ish, quest cycles and no leaks. Thanks again everyone

*** UPDATE #2 ***

Found manual online some dark corner somewhere, and have cured bolt stick, and have her running smoother. When i fill the Scuba this weekend i will get around to cronoing her. Just want to thank everyone one more time for all the help.