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Needle and Nozzle Relationship!

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  • Member since
    August 2003
  • From: Alice Springs Australia
Needle and Nozzle Relationship!
Posted by tweety1 on Saturday, April 3, 2004 3:42 AM
Ok, been using my Omni 4000 for around 1 week flat out, have tried everything to minimize my tip dry problem, all to no availDisapprove [V]

So last night after another trial session, I removed the nozzle and needle etc to give it all a good cleaning and remove any paint residue, but when I reassembled it, I looked straight down the guts of the AB with the needle partially inserted, and noticed it was on an angle.Shock [:O]

While looking at it face on, trigger at the top, the needle has a strange pull just off centre, and slightly upwards towards the left. I thought it was how I had inserted it, so did it again, same thing.

Maybe needle was bent, so I spun the AB around and looked at it from the rear, and it was bending slightly downwards and to the left.

With the nozzle in place, looking at the action while drawing back the needle, it opens up 3/4's of the nozzle, kinda like a crescent moon look.

I had a Teflon bearing installed into this AB before I received it, so I'm wondering if maybe it is crooked?

Or is this a normal thing for AB's to do??

Sean
--Sean-- If you are driving at the speed of light and you turn on the headlights, what happens???
  • Member since
    January 2004
  • From: USA
Posted by MusicCity on Saturday, April 3, 2004 6:21 AM
Sean, it's not normal. At least mine (Omni 3000) doesn't behave that way. I just looked at at under the magnifier and when I pull the trigger back the needle pulls straight back from the center of the nozzle and it opens up the nozzle all the way around the tip of the needle. I'd say you've got a bent needle or the tip isn't seating square in the body.

The tip sits in a chamfered cavity in the front of the airbrush body and is held on by the air cap body. Check to make sure you don't have any trash in the cavity or on the tip itself that would let it seat at an angle.

I think you may have found part of the source of your tip dry problem!
Scott Craig -- Nashville, TN -- My Website -- My Models Page
  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Saturday, April 3, 2004 10:12 AM
Sean,

Where did you purchase it from? I would contact them and explain what is going on.

Mike

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
  • Member since
    December 2002
  • From: Cornebarrieu (near Blagnac), France
Posted by Torio on Saturday, April 3, 2004 4:18 PM
And to be sure your needle is bent or not, just roll it on a piece of glass ( or a mirror ).

Thank you all for coming José

  • Member since
    August 2003
  • From: Alice Springs Australia
Posted by tweety1 on Saturday, April 3, 2004 9:54 PM
Well I know that the cavity etc is all clean as a whistle.
Maybe they seated the Teflon bearing in crooked?

Just my luck.

Thats it, I'm sending an email to LIFES complaint department!!!!Wink [;)]
--Sean-- If you are driving at the speed of light and you turn on the headlights, what happens???
  • Member since
    November 2005
Posted by Anonymous on Saturday, April 3, 2004 10:35 PM
try cleaning the threads. they ALWAYS hold paint.

just my .5 cents
  • Member since
    November 2005
Posted by Anonymous on Sunday, April 4, 2004 4:16 PM
to reduce tip dry, polish the needle till its mirror like
  • Member since
    April 2003
  • From: Hayward, CA
Posted by MikeV on Tuesday, April 6, 2004 7:24 PM
Tweety1,

Did you contact who put the Teflon needle bearing in that Omni?
I forgot where you bought it from. Was it Coast Airbrush?

Mike

Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal, and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom. " Charles Spurgeon
  • Member since
    August 2003
  • From: Alice Springs Australia
Posted by tweety1 on Wednesday, April 7, 2004 8:32 AM
Yeah Mike, it was Coast.
I told them of my problem, and the only thing to do is to send it back to them.

But, given my location, freight costs will take an otherwise affordable airbrush and add an extra $100 bucks Aus to it.
It'd be cheaper to purchase another and have it sent over.
Thats the problem with this country. Everything decent is OS, and trying to buy it here requires your first born as a deposit

Fine lines are the problem, but general coverage is ok. So I'm gonna save my pennies and purchase an AB that will be used for finer detail, doubt it will be an Omni though, and use the Omni for primer/base coat/clear coat coverage.

Might try the Iwata range.
--Sean-- If you are driving at the speed of light and you turn on the headlights, what happens???
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