HI Gerhard
I am glad you found the problem to your overheating issues!
I really would not recommend to permanently lock-up the viscous fan on a V6 Pajero. The engine revs easily to 6000 RPM (especially in the dunes) which the plastic fan blades were never designed for as the viscous coupling has a degree of slip in it. The blades could be pulled into the radiator or just snap off due to excessive fatigue from continued high RPM.
First prize - New viscous coupling - there are also aftermarket versions available from master-parts, alert engine parts, and possibly sivertons, etc.
Second prize - refill the viscous unit with silicone oil available from toyota spares - see my post here:
https://www.pajeroclub.co.za/forum/view ... 370#p35979
Third prize - second hand unit from scrapyard.
Nicholas Gibson
2005 Gen 3 Pajero 3.2 DiD Auto LWB
Mods:
ARB front bumper, OME, Lynx Bash Plate, Lynx Rock-sliders, Lynx rear steel bumper, Front Runner 40lt Long range tank, Madman EMS2 with EGT, dual battery system, 700FF spots
Corsa 1.4 Club (swambo)
Cape Town
"In my house I'm the boss, my wife is just the decision maker." - Woody Allen
2005 Gen 3 Pajero 3.2 DiD Auto LWB
Mods:
ARB front bumper, OME, Lynx Bash Plate, Lynx Rock-sliders, Lynx rear steel bumper, Front Runner 40lt Long range tank, Madman EMS2 with EGT, dual battery system, 700FF spots
Corsa 1.4 Club (swambo)
Cape Town
"In my house I'm the boss, my wife is just the decision maker." - Woody Allen
You can also extend the life of your fan's viscous clutch by refilling it with suitable silicone oil - available from Toyota. The only problem is that you will probably find that over time (maybe a year or so) that will also disappear through one of the seals. NB when I say refill - I do not mean full up. Its a bit of a guesstimate how much silicone oil to put in - around 50ml.
Leaving your fan hardwired! will be detrimental to fuel consumption and also can be harsh on the fan blades themselves - as it is you will see they gradually develop stress cracks along the base of the fan blades and you don't really want a fan blade through the radiator.
Leaving your fan hardwired! will be detrimental to fuel consumption and also can be harsh on the fan blades themselves - as it is you will see they gradually develop stress cracks along the base of the fan blades and you don't really want a fan blade through the radiator.