OsageJoe Posted June 24, 2014 Report Share Posted June 24, 2014 I'm having an issue with my Neo Gravity feed. My paint is bubbling up in the cup and not spraying about half of the time. I've taken it apart and cleaned it, but it seemed to not help. I do know I'm missing the O ring on the front. I took some teflon tape and chapstick to make a seal and that only made it seemed worse. It stopped the bubbling, but I wasn't getting good pressure. I've cleaned the nozzle, thinking there was paint in it, and it helped only momentarily. It seems in general I'm not getting good air flow at the same PSI comparitively to my other brushes, which are a neo siphon feed, and an off brand cheaper brush. Could this be because of a bent needle? On another note. What would be a step up in the Iwata line? As far as paint I usually spray thinned acryclic paints, and thinned createx airbrush paints. I've had no problems with my Neo gravity feed until now. I do hate the super small nozzel. Thanks in advance. Joe Quote Link to comment Share on other sites More sharing options...
Richard Prager Posted June 24, 2014 Report Share Posted June 24, 2014 I use the Iwata Eclipse CS......you would neverneed another brush. The Neo really isn't an iwata. it is made overseas. Some guys swear by the iwata Revolution. Quote Link to comment Share on other sites More sharing options...
Anzomcik Posted June 24, 2014 Report Share Posted June 24, 2014 Clean every part of the brush again, unscrew the crown and wipe clean the tip area (remove the needle first or you could damage the needle or cut yourself) Unscrew every part that can be taken down and clean it. Sounds like you have dried up paint. That oring, I have ran with out for years, I am not saying you don't need it but I found it wasn't necessary for me. I have painted thousands of baits with that brush and still use it today, its is worn in very nicely and still enjoy using it even compared to my expensive brushes. Give it a good cleaning and you will be smiling, remember if it isn't spraying paint it isn't clean, that goes for every air brush out there Quote Link to comment Share on other sites More sharing options...
gone2long Posted June 24, 2014 Report Share Posted June 24, 2014 I too have one and works fine, take the nozzle out and use some chapstick or bees wax on the nozzle threads that's how I got rid of the bubbles and has worked ever since but I also second the eclipse you'll never need another brush. Quote Link to comment Share on other sites More sharing options...
HAWGFAN Posted June 24, 2014 Report Share Posted June 24, 2014 You've done the right thing in cleaning and ensuring your threads are sealed. The only problem is, that isn't your problem. I can tell you from experience, you've flared your nozzle. This was probably caused from seating the needle too hard. Even if you take care in reassembly, it can happen. I can't speak for other brushes, but the nozzle in the Neo is very soft and thin. If you look closely (and it might require some magnification) you'll notice that end of the nozzle is more parallel than conical, maybe even displaying a slight "trumpet" appearance. Parts are available to fix this though. If yours has some mileage, go ahead and replace the needle while you're at it. Now that you've already gotten it squeaky clean, you'll be reminded how much you enjoyed this brush when it was new, after you make the repair. I believe I got my parts from Chicago Airbrush Supply, but I'm sure many others can help you. I chased my tail for weeks, taking the steps you have, until I finally saw this symptom and fix on a forum somewhere. My hope now is that you can get your parts faster than I did. Availability was an issue at the time. Quote Link to comment Share on other sites More sharing options...
DaveG Posted June 24, 2014 Report Share Posted June 24, 2014 Bubbling=blockage Quote Link to comment Share on other sites More sharing options...
mark poulson Posted June 24, 2014 Report Share Posted June 24, 2014 Rayburn Ben turned me on to air brush restorer. http://www.amazon.com/Createx-Airbrush-Restorer-16-oz/dp/B004BNFWW8 It is amazing how much old paint a 30 minute soak in it can loosen. And, if you keep it in a glass jar with a gasketed lid, like a salsa or pasta jar, it lasts forever+-. Quote Link to comment Share on other sites More sharing options...
OsageJoe Posted June 24, 2014 Author Report Share Posted June 24, 2014 Mark, is the restorer better than acetone or fingernail polish? I usually soak my parts in that. Thanks guys, I'll run by hobby lobby and get a new nozzle and needle. Quote Link to comment Share on other sites More sharing options...
Jaw Posted June 24, 2014 Report Share Posted June 24, 2014 Never did get my neo to shoot good paint even new out of the box broke down and bought an eclipse and a grex put the neo back in the box and in a closet two years ago wish it would have worked though Quote Link to comment Share on other sites More sharing options...
barrybait Posted June 24, 2014 Report Share Posted June 24, 2014 I'm with Hawgfan. I fought the same battle, got everything clean, and finally determined it was the nozzle. I could feel an edge on it so I put it under my magnifying lamp and I could see what looked like a little chip out of the edge of the nozzle. I knew to be careful too and tried to seat the nozzle carefully each time. Hobby Lobby carries the part in my area. Don't forget your 40% off coupon. Paints great again. I think they use a lesser grade of brass and some nozzles have a weak edge. I'm eventually going to get the eclipse too but am going to keep this one working. Quote Link to comment Share on other sites More sharing options...
HAWGFAN Posted June 24, 2014 Report Share Posted June 24, 2014 If I ever decide to upgrade to the Revolution, would I need the BR or CR? I've never used the larger 0.5mm nozzle. I've heard that some people prefer it. Most of the detail work I do on baits involves stencils and masking, so I don't think it would be an issue. It would be nice if it made a difference on how it handled thicker paints. Quote Link to comment Share on other sites More sharing options...
mark poulson Posted June 24, 2014 Report Share Posted June 24, 2014 Mark, is the restorer better than acetone or fingernail polish? I usually soak my parts in that. Thanks guys, I'll run by hobby lobby and get a new nozzle and needle. Yes. I also use acetone periodically to clean my brushes, but the restorer got a bunch of stuff the acetone left. I only use it occasionally, if my brush isn't acting right, not every time I finish painting. Quote Link to comment Share on other sites More sharing options...
OsageJoe Posted June 24, 2014 Author Report Share Posted June 24, 2014 Thanks Mark Quote Link to comment Share on other sites More sharing options...
FrogAddict Posted June 27, 2014 Report Share Posted June 27, 2014 I have a NEO and recently I had an issue. No air flowing. Yes, I cleaned the heck out if it. I then did some diagnosing and realized it was the valve. I called Iwata and they sent me a replacement valve body (no charge) and now it works great! I may have gotten something down in the valve, not sure but they didn't even question me, just sent a new one. If I had it to do all over again, I would have spent more money and bought a Revolution or an Eclipse. I will say that I was very impressed with Iwata's customer service. On a related note, I left my air brush to soak in restorer for a week by accident (long story) and the disposable cup I used just melted. What a mess! Quote Link to comment Share on other sites More sharing options...
gone2long Posted June 27, 2014 Report Share Posted June 27, 2014 Don't be fooled by "airbrush restorer" I've been using brush restorer for paint brushes from AC Moore and Michael's and it works like a charm. I do not recommend you use it for internal parts just the metal. Quote Link to comment Share on other sites More sharing options...
Matt M Posted June 28, 2014 Report Share Posted June 28, 2014 I primarily use a neo. Replacement parts are available in store at hobby lobby. If the brush works for short periods of time after cleaning. Try filtering the paint through some panty hose if you don't already do so. I find I have to run my neo at a higher psi than other guys run their brushes. Quote Link to comment Share on other sites More sharing options...
RayburnGuy Posted June 28, 2014 Report Share Posted June 28, 2014 I've been using Createx Airbrush Restorer for about 3 years now with no problems whatsoever, but I don't submerge the entire airbrush in it either since there is no need to do so. Most airbrushes built these days have a Teflon needle seat and it is impervious to the restorer. If paint is getting past the Teflon needle seat then you have more problems to deal with than just a dirty airbrush. To soak my airbrush I pull the needle back just far enough to completely open the nozzle and then submerge the front end of the brush in the restorer which I keep in a small jar that is just big enough for the front of the airbrush to fit into. I'm not sure what the restorer would do to the o-rings located in the air valve assembly, but I have an idea it would not be good. Since the paint doesn't get back that far there is no reason to submerge the airbrush that far anyway. Now if your airbrush has o-rings up around the nozzle I wouldn't suggest using the restorer. If you have any doubts as to what the restorer would do to o-rings just contact the folks at Createx and ask them. Ben Quote Link to comment Share on other sites More sharing options...
BobP Posted June 28, 2014 Report Share Posted June 28, 2014 I use an Iwata Revolution BR with the .3mm tip as my "do everything" brush, reserving my HP .2mm for detail work. I think the Revolution is the next step up from the Neo in the Iwata lineup. It shoots unthinned paint, pearls, and flakes just fine. Quote Link to comment Share on other sites More sharing options...
barrybait Posted July 2, 2014 Report Share Posted July 2, 2014 I had the same problem that FrogAddict had above on both my neo and my badger. Turns out it is the o-ring on the small stem. It swells up. Something from the paint or cleaners is getting absorbed by the o-ring material. I keep a couple spare o-rings handy because this really shuts down your project. You can visibly see the difference in size of a swollen o-ring a significant difference. Quote Link to comment Share on other sites More sharing options...
nc cranker Posted July 16, 2014 Report Share Posted July 16, 2014 Osage Joe, I had the same problem with my neo right out of the box. I read an article about hole in the nozzle cap on some of those causing trouble. So I contacted them and they sent me a free nozzle cap but I still had the same problem with paint bubbling out of the cup. So I contacted them again and sent the airbrush to them. Turns out it was missing a part behind the nozzle cap.They fixed it free of charge and it works fine now. Quote Link to comment Share on other sites More sharing options...
Skeeter Posted July 17, 2014 Report Share Posted July 17, 2014 "I do know I'm missing the O ring on the front." First off, you need to order and replace the part. Next, take your wrench and snuggly tighten the nozzle. Hand tight doesn't always get it. This should fix your problem. Skeeter Quote Link to comment Share on other sites More sharing options...
