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miker

Member Since: 13 Sep 2015
Location: Surrey
Posts: 1763

lightning wrote:
What about removing the viscous fan coming completely? I’ve read on forums people have done this and never had the engine overheated even when towing a caravan in France in the Summer

I've seen people say the same, personally I'd never do it, seems like a pointless risk! What I might do is fit a grill muff to block some airflow. What I'll probably do is carry on wearing a coat and using the heated seats!!

I do want a webasto/eberspacher at some point though, just so I can get into a warm car in the mornings.

8th Jan 2018 12:12pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

lightning wrote:
What about removing the viscous fan coming completely? I’ve read on forums people have done this and never had the engine overheated even when towing a caravan in France in the Summer

I removed my fan about 3 years ago, maybe longer and have never had a problem, even towing my parents 110 on a tri axle transporter

Much less risky than actually blocking the radiator as there is still air moment

2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton

8th Jan 2018 12:20pm

MadTom

Member Since: 10 Sep 2013
Location: Olomouc
Posts: 622

Before removing the fan try to stop if with idling engine - with proper working viscous clutch in the fan, it is possible with one finger. ... I recommend use someone others finger for first test. Or a piece of cardboard. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo

8th Jan 2018 6:16pm

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

2005 Defender 90 Td5 XS CSW Bonatti Grey

My TD5's always taken around 5 miles to warm up and the temperature drops rapidly at tickover. It's the 'norm' with that engine.
Maybe that's why the XS model has a heated screen and seats.....

8th Jan 2018 6:28pm

UtilityTruck

Member Since: 09 Jan 2014
Location: Oxford
Posts: 463

On my puma the fan engages so infrequently and is so loud when it does the first few times it happened (before I’d understood what it was)I thought I’d broken something! 2014 Keswick Utility 2.2

8th Jan 2018 7:53pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2763

I have to say l have never had the heater go cold in my TD5 110 when stuck in traffic in cold weather.

9th Jan 2018 7:36pm

Low-Range

Member Since: 30 Sep 2016
Location: BC
Posts: 41

Before I put in an electric fan had to replace viscous fan. My vehicle definitely heated up when viscous fan failed. I replaced the 2.5 N/A with a 300tdi and went for electric, as it came with the Turner Kit. If its winter that's causing the cool down a rad muff is the answer, plus a hotter thermostat.

Click image to enlarge

10th Jan 2018 10:53pm

annette

Member Since: 24 Nov 2017
Location: Tilarán, Costa Rica
Posts: 68

Yes I fully agree with low range.
When I had my 109 v8 I used the same solution.
here we recommend electric fans to avoid overheating.
Viscous fans seem to pack up when it is over 50º in the sun

Fixing Land Rovers in rural Guanacaste

17th Jan 2018 4:55pm

atakanmerdin

Member Since: 15 Dec 2017
Location: Nairobi
Posts: 26

Remove fan??? What??? How???
Not here in Kenya... a dead fan cost me a new head...
With OEM borg Warner viscous I now barely get above 73C on normal running, can barely get it to high 90C on hard runs. Monitor temps and other readings via MDMAN EMS.

7th Feb 2018 5:40am

OlavLRD110

Member Since: 03 Sep 2015
Location: Tallinn
Posts: 20

Fan removed 3 years ago.In summer temp max85..88C (installed Omron temp controller) even in traffic jam.
In winter warmed up faster. For winter Webasto and Defa Warm Up. TD5 coolingsystem is owersaised.

9th Feb 2018 5:43am

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

I go off-road and even with a good working visc. fan I managed to get it in the red zone a few times. With full throttle spinning 35"Simexes the heat builds up. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

9th Feb 2018 7:51am

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