

Harbor Freight black widow/spectrum problem
I’m at my wits end trying to figure this out and it didn’t take me long to get there. As the title says I’m using a Harbor Freight black widow airbrush. I only use acrylic. I’ve been using a cheap avanti compressor. Up front, I haven’t always been diligent on cleaning it. Anyway, over time it’s been performing worse and worse..harder to get good flow, spattering of paint etc. Now when I put the nozzle and nozzle cap on it hardly blows any air much less paint. Take those off and it works fine. The nozzle, needle, and cap are all .5. I’m wondering if the issue could be those 3 holes and if there could be dried paint in there. Using my ear hole camera I can’t see any way to clean those from the back side.
So far, I’ve tried soaking it in alcohol, acetone, and boiling it in water. I’ve taken the little o-ring on the inside out when doing this. Any suggestions are appreciated.