Bubbling paint cup part II

Karl, the documentation for the 100LG mentions in the troubleshooting section:

9)  Bubbles through the color cup. The spray regulator may be turned out too far.  Turn it back in.  Loose or missing head seal.

The regulator is the very end part of the head (you probably knew that), and mine is screwed down completely flush with the head assembly.  Perhaps you have something behind it that is preventing it from seating completely.

The head seal is the Teflon washer that goes between the head and body.  I've had trouble with them on my old 200 and always left the head loose to prevent them from flattening.  It could be that yours has gotten flat and is leaking.

Scott, thanks for the advice.

I'll be honest and admit I didn't know the forward portion of the head was the regulator. I checked mine and it appears to be flush with the front face of the head, however having checked the recessed part of the head it looks a little gunky, so I've just dunked it back into the thinner and will try cleaning it out.

The head seal washer is fine, as I loosen the head off after every session having read one of your previous posts.

Apart from the manky head everything else looks fine. I'm hoping cleaning that will sort it as I want to paint a 1/72 Fokker Dr.1 this afternoon, and I think the Omni might a bit too big for that!

Karl

After my last post I gave the AB another clean with lacquer thinner, then reassembled it, tightened everything up, and was fine.

The next time I came to use it started bubbling again!!!

Having played around with it, I've found I have to really tighten the head up with the spanner, and then it is fine. The teflon washer looks fine, but I'll order a new one as a precaution.

I do at least now have the cleaned AB this side of the Badger factory!

Karl

Karl - haha I'm not sure but I might be able to beat you... you might remember some problems I have been having lately and went as far to do 3 different soaks for about 1 to 2 days each... different cleaning methods while soaking (micro brush etc.. )  I know I was getting air in the cup too... and at one point had to take the whole thing apart as I noticed the paint had backflowed into the body...

I think mine ended up being the particular bottle of paint though... after the last cleaning I tried one more time to spray it (MM Panzer olivgrun) and had the same probs.. in digust I decided to start a little 1/72 FW-190 A8 to take the load off my mind and when I started spraying, no probs whatsoever (different color, diff bottle of paint).. I just think it was an old bottle of paint is all..  I was getting ready to dismember the brush to try to find the problem!  And was seriously debating buying a new brush to spray with till I could narrow this one down!

hope you get yours figured out!!!  I'm anxious to see that Panther finished!

Tom, which brush were you having that problem with?

 

E

The HP-CR, Eliott... seems it works fine now though.. I just need to make sure to go to the other hobby shop next time I need paint.  It's a little farther but I trust their inventory a little more.  I'm glad I tried it out on my 155 and got the same results... saved me a lot more frustration!

Tom, I read about your woes on the BfGGB thread. What with the shoulder and the hurricane, and now that bottle of paint, you're new name is ' Lucky'!

The 100 is spraying fine now, I just need to remember to nip up the head good and tight, and not spray anything but Gunze or Tamiya through it, as the fine head just won't tolerate either Lifecolour or any make of primer.

Karl

 

 

Karl - I know what you mean.. one I plan to keep the HP-CR and probably the 175 even if I upgrade to the HP-CS or the 100LG.  But either of the new brushes I get will come with both med and fine needle/nozzle combos for sure!  just in case I decide to switch to one of the permanently!

I hate to get rid of the 175 in case I decide to do a 1/16 armor piece.. can't beat the amount of paint and spray area the 175 puts out for something like that!  Or if I ever decide to do another B-36 kit... that thing is monstrous!!!

Tom, some times you just need to hose that paint on!

I've been using my Omni4000 on the Panther due to it having a bucket rather than a paint cup! I'll use the 100 for the green and the brown portions of the camo, but for the primer and the yellow only the Omni has the capacity.

I would definitely recommend the 100, a great brush. I love my little 100SG, it just feels 'right' when I spray with it. The Omni feels a little big and clunky compared.

Karl

 

Be carefull when you tighten the head on the airbrush, I have a Badger 200 that I torqued too much and the thread portion of the head broke off in the main body. 

Keep a stock of the teflon head seals handy, these compress after a while and will not seal properly.

Also the needle packing inside the body of the airbrush should be checked once and a while.