logo

Go Back   4x4 Community Forum > General Category > Vehicle & Technical Chat > Land Rover

4x4Community





Notices

...
Land Rover Go Beyond! The best 4x4xfar!

 Image
..

Reply
 
Thread Tools Display Modes
  #1  
Old 27-09-12, 07:44 AM
Werner90's Avatar
Werner90 Werner90 is offline
Member
 
Join Date: Jul 2010
Location: Pretoria
Age: 30
Posts: 133
Default 300 TDi Defender Viscous vs electric

I have recently broken a blade on my fan, after some inspection I have an idea that my viscous is also stuck fixed..

So before replacing the lot, can I convert the fan to an electric system to save some engine power?

Inputs would be appreciated..

Thank you
__________________
Airlift kit
Long range tank
Barakah roofrack
National luna split charge
ARB Rear Locker
BlackBox engine monitoring system
TerraFirma All Terrains
Reply With Quote
  #2  
Old 27-09-12, 07:47 AM
Crips's Avatar
Crips Crips is offline
Member
 
Join Date: May 2009
Location: Primrose-Oos
Age: 28
Posts: 3,085
Default

I would stick to the viscous, I think it's more reliable out in the bundus but maybe that's just me....
__________________
Chris

"Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing" Helen Keller

2005 LandRover Defender 110 D/C TD5
1977 LandRover Series III 109" Project

http://www.4x4community.co.za/forum/...play.php?f=262
Reply With Quote
  #3  
Old 27-09-12, 08:18 AM
Dawid's Avatar
Dawid Dawid is offline
Member
 
Join Date: Sep 2006
Location: Port Elizabeth
Age: 41
Posts: 1,895
Default

Unless you go for an expensive BMW electric fan, the viscous will be better. Keep it standard and reliable.
__________________
2004 Defender 110 Td5
ex 2009 Suzuki Jimny
ex 1996 Toyota Hilux 2.8D
ex 2002 Lada Niva
2012 Momsen 29'er (MTB)
Reply With Quote
  #4  
Old 27-09-12, 11:03 AM
terratiger's Avatar
terratiger terratiger is offline
Member
 
Join Date: Nov 2009
Location: Johannesburg
Age: 43
Posts: 723
Default

I've only recently come to understand the viscous fan and how it works... ingenious.

The chaps in the UK are all for pulling them out and replacing with electric.... but they won't find themselves in the middle of nowhere.

I'd also stick to the standard viscous. The 300 Tdi is brilliant for the bundus. Don't start introducing stuff that can become a problem in the sticks.
__________________
___________________________
98 Defender 110CSW 300TDI
2010 Freelander 2 TD4 HSE




You can go fast but....I can go anywhere!
Reply With Quote
  #5  
Old 27-09-12, 11:49 AM
faniedup's Avatar
faniedup faniedup is offline
Member
 
Join Date: Oct 2010
Location: Pretoria
Age: 55
Posts: 437
Default

If a viscous coupling ever starts slipping in the sticks, two large cable-ties around the shaft and blades will introduce enough friction to get blowing again.
Reply With Quote
  #6  
Old 28-09-12, 07:58 PM
biltong's Avatar
biltong biltong is online now
Member
 
Join Date: Sep 2006
Location: Bloemfontein
Age: 37
Posts: 1,397
Default

Keep the viscous!
__________________
1999 Discovery 1, 300 TDi - "Mall Crawler"

“The whole object of travel is not to set foot on foreign land; it is at last to set foot on one’s own country as a foreign land.” – G. K. Chesterton
Reply With Quote
  #7  
Old 29-09-12, 03:11 PM
johannes14's Avatar
johannes14 johannes14 is offline
Member
 
Join Date: Jun 2009
Location: Pretoria
Age: 49
Posts: 3,978
Default

Quote:
Originally Posted by terratiger View Post
I've only recently come to understand the viscous fan and how it works... ingenious.

The chaps in the UK are all for pulling them out and replacing with electric.... but they won't find themselves in the middle of nowhere.

I'd also stick to the standard viscous. The 300 Tdi is brilliant for the bundus. Don't start introducing stuff that can become a problem in the sticks.
Uk does'nt get as hot as Africa A hot day there does not come close to a hot day here
__________________
1992 Defender 3.5V8
PROJECT OVERHAUL http://4x4community.co.za/forum/show...oject+overhaul

Reply With Quote
  #8  
Old 29-09-12, 03:15 PM
4x4 Bedinges's Avatar
4x4 Bedinges 4x4 Bedinges is offline
Member
 
Join Date: Dec 2011
Location: Live : Bethal / Work : Saudi Arabia
Age: 31
Posts: 2,452
Default

Quote:
Originally Posted by terratiger View Post
I've only recently come to understand the viscous fan and how it works... ingenious.

The chaps in the UK are all for pulling them out and replacing with electric.... but they won't find themselves in the middle of nowhere.

I'd also stick to the standard viscous. The 300 Tdi is brilliant for the bundus. Don't start introducing stuff that can become a problem in the sticks.
UK the highest temp is 20 degrees Celsius plus minus keep the viscus fan.
__________________
Petrus




Swambo :4x4 Gogga

1999 Pajero 2.8 tdi BFG 265/75R16
Future mods - front and rear bumper ,snorkel , roofrack , suspension (Done) , bigger intercooler

2010 Terios 4x4 Auto - Lift suspension

Suzuki TS 50cc 2 stroke ON/OFF
PGO 110CC PMX Scooter
Quad 50cc (Kids)
2 x 49cc Pocket racing bikes (Repsol) (Kids)

ONE LIFE LIVE IT!! OFFROAD STYLE!!

Alles in die lewe gebeur met n doel
Reply With Quote
  #9  
Old 29-09-12, 04:35 PM
terratiger's Avatar
terratiger terratiger is offline
Member
 
Join Date: Nov 2009
Location: Johannesburg
Age: 43
Posts: 723
Default

Quote:
Originally Posted by 4x4 Bedinges View Post
UK the highest temp is 20 degrees Celsius plus minus keep the viscus fan.
You'll be amazed, having lived there for a few years, it can become uncomfortably hot... But yes it is a rare event, point taken


Sent from my iPad using Tapatalk HD
__________________
___________________________
98 Defender 110CSW 300TDI
2010 Freelander 2 TD4 HSE




You can go fast but....I can go anywhere!
Reply With Quote
  #10  
Old 29-09-12, 05:07 PM
hgbosch's Avatar
hgbosch hgbosch is offline
Commercial Member
 
Join Date: Oct 2010
Location: Pretoria
Age: 60
Posts: 3,424
Default

Hi guys

a properly working viscous fan will only sap power from the engine, when such is running at to high a coolant temperature. As soon as this has returned to normal levels, it will switch off again. It does this by means of a bi-metal triggered valve, that opens or shuts the flow of the viscous fan's oil and therefore engaging and/or disengaging the clutch.

If you need to remove the fan assembly for work on the engine or for cleaning out the intercooler, then ALWAYS stand the fan assembly up right against a wall or similar. This prevents the oil from leaking out of the VF.

You will know that it operates properly when driving off in the morning. You will hear a howling noise from the fan for about 15-20 seconds which then abates. Only once the engine coolant reaches about 97 Degs will the viscous clutch of the fan kick in again and then the fan will suck air through the radiator until such has cooled down to around 85 Degs. At this stage the VC will disengage again.
__________________
with kind regards
George Bosch
________________________
1998 LR Disco1 ES Tdi (seriously power enhanced by VNT Turbo)
2005 LR Disco3 TDV6 S
And some more serious stuff

Distributor for:



Special offers for 4X4community forum members on CTEK! Send PM with your email address for details
Reply With Quote
  #11  
Old 29-09-12, 05:31 PM
4x4 Bedinges's Avatar
4x4 Bedinges 4x4 Bedinges is offline
Member
 
Join Date: Dec 2011
Location: Live : Bethal / Work : Saudi Arabia
Age: 31
Posts: 2,452
Default

Quote:
Originally Posted by terratiger View Post
You'll be amazed, having lived there for a few years, it can become uncomfortably hot... But yes it is a rare event, point taken


Sent from my iPad using Tapatalk HD
To me uncomfortable comes at 50 in the desert
__________________
Petrus




Swambo :4x4 Gogga

1999 Pajero 2.8 tdi BFG 265/75R16
Future mods - front and rear bumper ,snorkel , roofrack , suspension (Done) , bigger intercooler

2010 Terios 4x4 Auto - Lift suspension

Suzuki TS 50cc 2 stroke ON/OFF
PGO 110CC PMX Scooter
Quad 50cc (Kids)
2 x 49cc Pocket racing bikes (Repsol) (Kids)

ONE LIFE LIVE IT!! OFFROAD STYLE!!

Alles in die lewe gebeur met n doel
Reply With Quote
  #12  
Old 01-10-12, 06:19 PM
Werner90's Avatar
Werner90 Werner90 is offline
Member
 
Join Date: Jul 2010
Location: Pretoria
Age: 30
Posts: 133
Default

Thank you hgbosch!

Think my viscous needs replacing a it is not disengaging anymore..
__________________
Airlift kit
Long range tank
Barakah roofrack
National luna split charge
ARB Rear Locker
BlackBox engine monitoring system
TerraFirma All Terrains
Reply With Quote
  #13  
Old 01-10-12, 08:37 PM
LouisXander LouisXander is offline
Member
 
Join Date: Jun 2008
Location: Elsburg
Age: 40
Posts: 907
Default

There is nothing wrong with an electric fan conversion. As long as it is properly done it has more advantages of which one is more power..Normal fwd cars also drive in 50° heatwaves and still work fine. I'll go electric with a warning light if you really want to be sure. I'm going electric on my auto Can for the extra 7-9 kw on my auto.
__________________
LouisXander
2014 Renault Duster 4WD
2008 Mercedes Benz C220 CDI = SWAMBO
06 Suzuki DL1000 V-Strom Lesotho Cruiser!
98 XR600R just to keep me busy
Reply With Quote
  #14  
Old 02-10-12, 11:03 AM
T le Roux's Avatar
T le Roux T le Roux is offline
Member
 
Join Date: Dec 2010
Location: Amanzimtoti
Age: 45
Posts: 203
Default

Guys where can one buy the "special" tools refered to in the Rave Manual to enable you to change the Viscous Fan unit.

Cheers
__________________
Theo le Roux
1995 Defender 110 300TDI
2007 Discovery 3 TDV6 SE
Reply With Quote
  #15  
Old 02-10-12, 11:18 AM
biltong's Avatar
biltong biltong is online now
Member
 
Join Date: Sep 2006
Location: Bloemfontein
Age: 37
Posts: 1,397
Default

You can buy it at any hardware store and modify it yourself.
__________________
1999 Discovery 1, 300 TDi - "Mall Crawler"

“The whole object of travel is not to set foot on foreign land; it is at last to set foot on one’s own country as a foreign land.” – G. K. Chesterton
Reply With Quote
  #16  
Old 02-10-12, 09:29 PM
Landyluvver's Avatar
Landyluvver Landyluvver is offline
Member
 
Join Date: May 2009
Location: Springs
Age: 54
Posts: 12,883
Default

Quote:
Originally Posted by T le Roux View Post
Guys where can one buy the "special" tools refered to in the Rave Manual to enable you to change the Viscous Fan unit.

Cheers
are you referring to a 32 flat spanner?
may need to thin it down a bit to fit in but easy enough with an angle grinder and flapper wheel
__________________

Land Rovers never die, they simply become organ donors!
0833006099
Reply With Quote
  #17  
Old 10-10-12, 07:15 PM
Werner90's Avatar
Werner90 Werner90 is offline
Member
 
Join Date: Jul 2010
Location: Pretoria
Age: 30
Posts: 133
Default

Bought a 32 spanner and it worked 100%, took me 10 mins to remove and 10 to refit, got quoted R1500 for labour so decided to do it myself...
__________________
Airlift kit
Long range tank
Barakah roofrack
National luna split charge
ARB Rear Locker
BlackBox engine monitoring system
TerraFirma All Terrains
Reply With Quote
  #18  
Old 10-10-12, 09:40 PM
Landyluvver's Avatar
Landyluvver Landyluvver is offline
Member
 
Join Date: May 2009
Location: Springs
Age: 54
Posts: 12,883
Default

Quote:
Originally Posted by Werner90 View Post
got quoted R1500 for labour so decided to do it myself...
was that an "independant" quote?
__________________

Land Rovers never die, they simply become organ donors!
0833006099
Reply With Quote
  #19  
Old 10-10-12, 09:42 PM
Werner90's Avatar
Werner90 Werner90 is offline
Member
 
Join Date: Jul 2010
Location: Pretoria
Age: 30
Posts: 133
Default

Quote:
Originally Posted by Landyluvver View Post
was that an "independant" quote?
Maybe
__________________
Airlift kit
Long range tank
Barakah roofrack
National luna split charge
ARB Rear Locker
BlackBox engine monitoring system
TerraFirma All Terrains
Reply With Quote
  #20  
Old 18-11-12, 11:01 AM
Werner90's Avatar
Werner90 Werner90 is offline
Member
 
Join Date: Jul 2010
Location: Pretoria
Age: 30
Posts: 133
Default

Replaced the viscous, all good again!
__________________
Airlift kit
Long range tank
Barakah roofrack
National luna split charge
ARB Rear Locker
BlackBox engine monitoring system
TerraFirma All Terrains
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Defender Wheels24 Test JohanJvV Land Rover 0 25-05-11 02:19 PM
defender 300 Tdi Drivebelts Benson Land Rover 29 01-04-11 08:53 AM
Defender Viscous fan vs Electric fan Grond Monster Land Rover 21 03-01-11 05:42 PM
Defender Defender 110 300 tdi overhauled. brandh Land Rover 6 22-12-09 09:07 PM
Electric problem - Defender Tdi OllieNoster Land Rover 10 10-12-08 06:45 AM




All times are GMT +2. The time now is 04:12 AM.

Disclaimer and Terms of Service

Imvo Trading Solutions CC t/a 4x4Community.
PO Box 29132, Sunridge Park, Port Elizabeth, 6008, South Africa


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Template-Modifications by TMS