jazzmandolin

Hello, my 92 loyale wagon has not been warming up to normal operating temp no big deal until now it is getting cold. I pulled the thermostat housing to replace the old thermostat and LOW AND BEHOLD no thermostat!!!!!!! So my problem now is I have no old tstat to see the correct position for the new tstat. Can someone tell me how the new tstat should be positioned in the housing? My almost useless haynes manual just says to install exactly the way the old came out OH WELL. Please HELP. and THanks