thermostat help

[scheemen]

and yes i have searched ...i have a 96 240sx s14 and my car is overheating badly..so i'm changing the thermostat only prob is im not sure where it is ...the piping theat goes from the bottom of the radiator connectst to the block ...there are three bolts holding this piece on the prob is the bottom one is in the center directly below the piping and is a biaatch to get too so then i figured the thermostat was in the connector piping that is on top and to the left ..so i undid the two bots holding this on there is a gray silicone sealant holding this on and does not seem to want to come undone ...at least not with ease and i don't want to remove it and rip the seal that i don't have a replacement for ...any and all help is appreciatedif any body could scan the fsm instructions/diagram ..or just could tell me what the Hell to do is appreciated

[1991240xs]

you have to get that bottom bolt off to get to the thermostat, try coming from under the car-