I think you would hard pressed to run the cleaning gun ( what I have) with that small of a compressor . My compressor is a 5hp 2 stage delivers 15 cfm@100 psi
I had a similar noise on my 7424xp I torn it down found the screw that goes into the gear assembly sheered off! This has been dropped a few times so that did not help!
This question has been of concern for us. My son has been doing paint correction for my paintless dent repair shop. We use Presta compound with their wool or foam pads on a Makita rotary but I hate the cleanup time with the compound.
Is there a better product for the cutting process using a...