How do you replace the thermostat located on a 1992 Toyota Camry 6 cylinder?

The stat is located at the bottom of the top radiator hose within the water outlet. Evenly remove the 2-3 bolts holding the water outlet in place. Coolant will drain into a container you have placed underneath. No need to drain it down any lower than imeadiately below the stat opening. Look at the way the stat sits in place prior to removing it. Once you remove the stat, clean off any gasket residue. ( O-rings need no sealant if that is what you have)Install new stat in the same way old one was removed. If there was a gasket,( vs a O-ring) install a new one with gasket sealer of your choice. Tighnen bolts evenly and snugly but do not overtighten. Make sure the housing is going down evenly so you do not crack the housing. Fill with coolant and leave the rad cap off for 15 minutes to top off coolant and bleed off the air in system. Done. I hope this helps you. Mark