It is necessary to move out of the asphalt to the muddy country road - the fan does not stop. You look and boil the engine. For those who often have to storm off-road, it will be useful to slightly modernize the cooling system of their UAZ, namely, to install an additional electric fan in front of the radiator (photo 1). We tried this technique on our sports car, we were satisfied with the result, therefore, with a clear conscience, we bring it to your attention.
The second fan along with the diffuser was taken from the G8. In addition, three relays of type 111.3747, an additional TM108 fan enable sensor, a three-position switch and two KD105 diodes were needed.
We fix the additional fan, naturally, in front of the radiator, and solder the second sensor into the lower pipe coming from the radiator (photo 2).
[caption id = "attachment_185715" align = "aligncenter" caption = "Fan connection diagram:
VK - switch; P1, P2, P3 - relay 111.3747;
D1, D2 - diodes KD105; N1, N2 - TM108 sensors; Pr - fuse; M1, M2 - fan motor.
Vk switch position: 1 - automatic mode; 2 - forced VK "]