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Old 11-23-2005, 11:49 PM
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why is my paint gun spitting?

I know it's hard to diagnose problems but some ideas would be helpfull.
I've got 4 diff guns, none of whch are top quality but they seem to work good. problem is last couple of times I used them they were spitting, in about 1 second intervols. The gun I used today is a astra 4014 but it also happend last time and I swiched guns and did the same thing so I guess it's the compressor. 5 hp oiless 20 gal 220 blackmax. The guns all worked real good before. Any ideas. Like the gun shoots a nice pattern then after 1 second spits(no paint) then shoots a nice pattern. When I do air only it does not do this. when I do thinner, it does not do this. The paint seems pretty thin and lays nice until it spits. Any ideas? its really pissing me off. Thanks for the help

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Old 11-24-2005, 12:00 AM
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i have heard to check the breathing hole on the top of the cup and make sure that the air valve on the bottom of the gun is open

hope that helps, alex
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Old 11-24-2005, 12:04 AM
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no valve on this gun just a nut (Not Me )
also I took the top off the cup and tried it, no diff
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Old 11-24-2005, 12:10 AM
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Are you straining the paint?..sometimes a small bit of trash might get in there..

OMT
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I have tried most all of it and now do what is known to work..
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Old 11-24-2005, 12:18 AM
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no
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Old 11-24-2005, 03:20 AM
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Remove the air cap off the gun. tighten the fluid tip a little tighter (even if you think it's already tight) and replace the air cap...


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9 times out of 10 this is caused because we don't want to hurt our paint guns by wrenching on them. Tools are our best friends... It's got to be tight there though.
http://www.a2zautoforums.com/showthread.php?t=3367



Last edited by milo; 11-24-2005 at 03:36 AM.
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Old 11-24-2005, 08:25 AM
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How are you cleaning your guns? I have had problems with just trying to blow solvent through them and setting on the shelf. Next time I went to paint the thin film of clear that the solvent didn't completely remove partially restricted the tip and didn't spray well at all. I now take apart and clean carefully after each use...only takes a few minutes
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Old 11-24-2005, 11:40 AM
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Quote:
Originally Posted by gofast51
How are you cleaning your guns? I have had problems with just trying to blow solvent through them and setting on the shelf. Next time I went to paint the thin film of clear that the solvent didn't completely remove partially restricted the tip and didn't spray well at all. I now take apart and clean carefully after each use...only takes a few minutes

I have experienced this same problem recently and after a good clean it worked fine.
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Old 11-24-2005, 12:51 PM
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make sure the needle packing is tight. if there isn't a good seal around where the needle goes through the gun then it can suck air. usually it will be a rapid sputter but your might be a very slow leak. just a possibility.
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Old 11-24-2005, 01:09 PM
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Quote:
Originally Posted by mrcleanr6
make sure the needle packing is tight. if there isn't a good seal around where the needle goes through the gun then it can suck air. usually it will be a rapid sputter but your might be a very slow leak. just a possibility.
I second the packing nut check!
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Old 11-24-2005, 04:43 PM
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no substitute for experiance. Thanks guys. I tieghtened the fluid tip and it works like a charm
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Old 01-20-2006, 12:41 AM
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9.03 times out of 10
thanks for survey feedback
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Old 02-20-2009, 11:32 PM
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guns

Quote:
Originally Posted by milo
Remove the air cap off the gun. tighten the fluid tip a little tighter (even if you think it's already tight) and replace the air cap...


.
.
.
9 times out of 10 this is caused because we don't want to hurt our paint guns by wrenching on them. Tools are our best friends... It's got to be tight there though.
http://www.a2zautoforums.com/showthread.php?t=3367


sounds good just dont use pliers
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