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Pulsing Airbrush


JaseGill
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Hi all,

I have an Iwata TR1 Airbrush and after a recent deep clean (dismantle) it pulses.

Diffcult to explain but its a fast pulse as if it takes time to build pressure then lets go but in very short fast bursts.

On low trigger setting the cup also bubbles.  This is with water as I usually use water to test before use.

 

I'm guessing its the nozzle tip as I have changed the needle, the packing screw O-ring and the PTFE washer (which I had as spares in the stash).  I am wondering if the Packing Screw is too tight/too loose.  Does anyone have any pointers in troubleshooting it?

 

I have ordered a new nozzle tip and nozzle cap just in case.

Thanks in advance,

J.

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  • 2 weeks later...
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Always make sure you clean the crap out from the joint between the crown cap and the section behind it. If you don't get a good mechanical and crap free joint there, you can have impaired performance.

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It was a combo of that and the not so great new Iwata nozzle tool (the red one like a barrel).

It cant tighten the nozzle enough to get a good seal so I'm back to the spanner that came with it.

 

I knew it was a dodgy seal just after 3 cleans, rebuilds, new nozzle, needle, packing washer and packing seal I was at my wits end :)

 

All good now, just need to find some time to go "play" with it :)

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It was a combo of that and the not so great new Iwata nozzle tool (the red one like a barrel).

It cant tighten the nozzle enough to get a good seal so I'm back to the spanner that came with it.

 

I knew it was a dodgy seal just after 3 cleans, rebuilds, new nozzle, needle, packing washer and packing seal I was at my wits end :)

 

All good now, just need to find some time to go "play" with it :)

Grreeeaaaatt……..Just bought that. Shit!

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