A simple, cheap and easy
Spray Gun Modification
© Frank Ford, 7/4/99; Photos by FF, 6/24/99
Here's my DeVilbiss EGA automotive touch up gun:
It's classic siphon feed spray gun, and one I've used for better than 20 years. This spray gun has given me trouble free service, except for one nasty little feature - that nasty paint cup.
Like almost any other spray gun this one came with optional cups of varying capacity, but one common feature:
That BIG mouth! These things are ALWAYS getting their lids stuck on with dried lacquer, and are a giant pain to unscrew. It seems I'm always in a rush just at the time when I can't get the stupid thing open.
So, I planned to fix the problem, but never quite got around to it. Never, that is, until about 4 years ago when the siphon tube split from old age and started sucking air. Faced with the need to do a bit of repair work, I finally put my plan into action.
I got hold of some 1/8" brass pipe fittings, and a 1/8-1/4" adapter, and simply made myself a new siphon tube:
Right at the top of the tube (white arrow) I soldered on a brass collar. Then I simply screwed the thing together through a loose hole drilled in the polypropylene cap that fits those regular 8oz. poly bottles.
It fits so loosely that it wobbles around like crazy when I wave the gun around, but, you know, it never leaks or causes any problem.
Now I have a cheap source of quick connect spray bottles, all labeled and capped, ready for use:
And, the best part is that the caps are small enough diameter, and all polypropylene, that they never get stuck!
I should have done this years before! I presume a similar modification would work for virtually any siphon feed spray gun.
Never to be outdone, Roy Noble just sent me this photo of his modified EGA gun. He took the gravity cup from a cheap import and used plumbing fittings to set it up:
Now he has the ease of cleaning that's such a great feature of the gravity feed system.
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