Viscous fan - 200tdi
Hi
Does a viscous fan work on revs, load or heat ?.
On on idle how should a viscous fan behave.
Has anyone changed over to thermos on a Defender 200tdi ??
TopicToaster
Originally Posted by Lucas
when you say changed over to Thermos. Do you mean taking of the Viscous and put on electric fans.
I have not done it . Main reason . I have seen it done loads and loads of times and they do it and then have loads of problems with over heating (and this was in the UK). The only way tey solved the problems was to put the viscous back on
95 300 Tdi Defender 90
99 300 Tdi Defender 110
92 Discovery 200tdi
50 Series 1 80
50 Series 1 80
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Heat. It is explained in the workshop manual.
Ron
Ron B.
VK2OTC
2003 L322 Range Rover Vogue 4.4 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA
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Master
yes, HEAT .....and REVS,......it IS explained in the manual.......
briefly the speed of the fan is ultimately limited to about 3000 rpm [as logic has it that at those revs in any gear you are moving through the air fast enough to move enough cooling air through the radiator to cool effectively]......
and the viscous coupling is themostatically controlled so that a piston pushes more silicon fluid into the coupling when it gets hot enough to require cooling.....this engages the drive rather than basically just freewheeling......but its top speed is governed as described above.
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