Special compressor are crazy expensive. Here are two more tools I made to help take the compressor pump apart.
The big wrench I cut out of scrap and welded it together. It worked great.
This tool was a set of socket adapters I had never used the largest on so I converted it into a tool. Then I added 3/16 and 11 gauge sandwiched together.
As you can see, I have some clean up to do.