Unfortunately, the threads on the compressor really are chewed all to hell. Found this out when I was replacing the teflon seal at to top of the threads. Sucks big time, but it is what it is.
As for the gas tank, I'm well familiar with the little breather and return hoses at the top. Replaced all of those (carefully) the first spring I had this car 2+ years ago. Cutting them off when removing the gas tank certainly sounds like the way to go. What else needs to be removed out of the area to get the passenger tank out -- compressor and mount, clearly, but what else would make the job easier overall?
- 1987 Ferrari 328 GTS #71403