(COOLING)How does the Fan Clutch Work?
I have been troubleshooting a cooling issue on my 1982 GS for the past few weeks and I have replaced just about everything. Upper/lower rad hoses, OEM thermastat, thermastat gasket, water pump gasket, and boiled the radiator.
The day I put everything back together and ran it, the temp was perfect (It sat at about 3/8th on the Temp Gauge). That was after city and about an hour of highway driving. However, the next day the temp gauge was back to where it was before I replaced everything (5/8th on the gauge) after a less than an hour of city and highway driving. When I turned on the heater, the temp gauge went back to 3/8ths. Both days, I drove it around the same time and the outside temp was about 78ish.
I searched the best I could on the forums and looking in my Haynes manual. I found a few ways to troubleshoot the radiator fan. When the engine is cold, the fan spins freely and stops after about 3-4 times around. When the engine is at operating temp, the fan still spins 3-4 times around. Are there any other ways to troubleshoot it?
My questions are: Is my fan clutch/drive damaged/broke? And for my information, how does the fan drive/clutch work?
Note* I read another thread that mentions the need to have the lower engine compartment cover on to help the cooling system. I will placing that back on tonight.