I have a '93 Civic SI. I know I have to remove 2 bolts to lower the mount/bracket that is in the way of putting on the belt. All the threads I could find people just said remove the two bolts and put the belt on, do I need to support the engine when I take the bolts out or anything? Should I put the car on jack stands when I do this? I'm just trying to clarify some stuff before I change the belt.

Also, there hasn't been a belt on the compressor in at least a year and a half, not sure how long the previous owner didn't have one on. The pulleys look a little rusty, not much, just a little. Would I be alright to just pop the belt on and go from there or would I need to do anything else. Do you guys think the coolant would still be good too?

 

Not only do you have to loosen the two belts for the pulley, you also have to take off the AC braket/mount. Here is a link for doing a timing belt change but it shows you how to take off the power steering/alternator and AC belt.

https://honda-tech.com/zerothread?id=649277

 

I used a jack to support the motor. You have to loosen the P/s adjustment bolt, remove the belt. Then Loosen the A/c belt tensioner. remove the bolts for the lower U mount then let the motor down just a little so you can slide a belt through. I had a really hard time getting the A/c belt on you might need a screw driver to help pry it on. Then just tighten the tensioner until you can puch the belt about a half inch in the middle with your finger. bolt the U mount back up and reinstall P/s belt and retighten the same way.