[alfa] 164 rad fan switch

["Valery Danilov" <valdanilov@xxxxxxx>]

First of all thanks to those who replied about my rear hub quest. I am about 
to tackle the replacement today.
Another puzzle I have with the car is the temperature control. When I got 
the car, the fans would not go on, and the temp gauge would creep 
dangerously high. I bypassed the radiator fan switch to have the fan run all 
the time at low speed, and now the car runs rather cold all the time, 
anywhere between the 110-140F according to the gauge.
Am I correct to assume that the thermostat is stuck open and needs to be 
replaced (in addition to a new rad fan switch being faulty)? I got a new rad 
fan switch from IAP, and am about to replace it today. However, in the 
Centerline catalog I noticed a "new improved" version of the radiator 
switch, that allows a manual adjustment of the switch cut-in temp setting. 
Something about stock switches being set to cut in at too high a 
temperature.
So, my other question to the experienced 164 owners, is what is the 
temperature at which the radiator fan switch turns on the fans at low and 
high speeds? Is a "mod" required to lower those settings? What is the 
correct thermostat for this car? 180, 190, 200?? Are replacements available 
through generic part stores, or a special order required? Last I looked at 
those thermostats they appeared to be generic units.
Thanks a bunch, and happy motoring!

Val
'91S
Seattle

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