Well, I decided that it was time to dive in. I drained all the fluid from the system, removed the main shutoff valve and other components so that I could replace a few o-rings and pulled the hydraulic pump out of the system. The plan is to check it out and fix anything I found. If nothing seems wrong then I'm going to go ahead and pull the super charger out.
After I removed the pump I noticed the main gear shaft was extremely loose and I compared it to the other one I have which was definitely tight. Everything else on the pump looks good and I took it all apart to make sure. The gear shaft fits into the pump with a screw and an snap ring of sorts. It appears the main screw has broken off but i need to remove the one out of the other pump to be sure of how it fits together. In either case the shaft seems to be way too loose and may have been my problem. I'm planning to replace some o-rings and rebuild it tomorrow with a few replacement parts and see if it fixes the problem. If not, then the next shot will be to remove the supercharger itself. :-(
Glenn