Hey guys. For whatever reason, my father thought that the air pump could have been the cause of my cold start issues. For more read https://www.rx7club.com/2nd-generation-specific-1986-1992-17/still-having-engine-problems-465097/

Anyway, what happened today, was I went to loosen the air pump belt adjustment bolt, and sheared the head right off it. I had a spare air pump that didn't work. I took it all apart, and made it spin freely without anything in it. I've got it rebuilt now, and it spins roughly, but it does spin. I had to borrow the gasket from the one on the car, so its now dead. I'm curious if I can put a rough turning air pump on the car and expect it to work. To give you an idea, if I put the pulley in a vice, I can turn it, but that's about it.

Now, if I can't get a replacement air pump, or you guys don't think that's a good idea, can I run without the air pump? My car is an n/a with a K&N filter. I should have a freeflow exhaust system coming soon, with no cats.

Any help is greatly appreciated.
-Rick