Thermostat Install on 1991-1992 3FE 80 (1 Viewer)

Apr 25, 2020
Modesto, CA
Just want to leave a tip for anyone else who runs into a leak issue after installing a new thermostat on their 3F-E 80 Series. It's not clear from the FSM, but you drop the thermostat into the lower housing and then the lower/upper housing gasket over the thermostat flanges. I had a noob moment my first go-round, when I set the gasket and then the thermostat on top of the gasket, which led to a leak. Also, don't forget the smaller round gasket on top of the thermostat. :flipoff2:

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