I have a '92 FJ80 with a 3FE. I have 228,000 miles on it. A little background on it first. I went wheeling with it soon after buying it. On a big, loose hill climb I noticed the temperature gauge had gone into the red. I immediately shut it off and let it cool down. After my overheating scare I went ahead and replaced the fan clutch (stupid Autozone one). The temp gauge never got into the red again but into the summer I noticed another problem. After a 20-30 minute drive I would notice the coolant boiling in the overflow reservoir. The temp gauge never went much above halfway any of these times. Still, being paranoid and always going a little overboard, I overhauled the cooling system. I warranteed the fan clutch for a new one, replaced the thermostat, radiator, coolant hoses, and water pump with all OEM units (except the fan clutch). Until lately I haven't nopticed any real issues but now I am noticing a strong smell after driving that smells like burning rubber. It is most noticeable on the driver side. I also seem to be losing a bit of coolant (maybe a quart a month or so). No white smoke from the exhaust, no signs of coolant in the oil but it seems to have a slight miss. I got a block tester and tried that out. The fluid stayed the same color. I have some signs of wetness on the driver front lower corner of the radiator and the passenger rear upper engine corner. Any ideas what my problem is?