Reply With QuoteWhat is actually failing? It is a surprising bad run you have had.
Master
On my third fan in 3 years, must be an alternate to these bloody things, will an electric fan work on a TD5?
Land Rover genuine fan replaced with genuine, lasted just over a year, Bearmach replaced that, again lasted just over a year, now I've stuck Britpart one as as crap as it is at least it has a 2 year warranty. Next is going to be an electric conversion.
Might try this next, oh and 'you can't beat a viscous' doesn't really wash if they don't last 5 minutes
Revotec Electronic Fan Conversion Kit - TD5
ChatterBox
SubscriberWhat is actually failing? It is a surprising bad run you have had.
Master
The fan doesn't lock up, so overheats in traffic, also it used to have some resistance when cold, now it just spins freely.
Master
Are you just going off the fact that their is no resistance with the hub or its physically overheating. Perhaps your gauge is out or thermostat is stuck closed.
Master
The thermostat is new and all good, like I said temp only starts to increase in slow traffic/stationary. Once moving temp drops to normal. I'm using an engine gaurdian temp gauge which uses head temp as my reference. I can also see on the nanocom what temp its getting to.
AT REST
SubscriberMaybe it just doesn't like being in traffic - probably happier in the bush.
Roger
ChatterBox
SubscriberWhen the viscous fan does lock up, you certainly can hear it. Sounds like a vacuum cleaner sucking up everything in its path. I notice mine when the engine temps climb up to 98degC when at slow speed on a hot day.
Love the idea of electric fans, just have not seen any that generate same air flow as the viscous fan. Maybe the solution is to have both?
Wizard
Hi , I also had a viscous fan on my td5 fail . I was in the Vic high country , going up a long spur , I noticed steam , so stopped strait away . I checked my fan and It wasn't spinning . It should have locked up but It could be turned by hand with a boiling radiator . I replaced It and never had any more problems . I did think about putting an electric fan on also . There are some big powerful electric fans out there . I took the easy way . I think you have been unlucky , after all there are a lot of viscous fans out there that have done a lot of work , and are still going !!.. Good luck Jim ..
Wizard
SubscriberBuy the OEM (Borg Warner) made one, even comes with the Land Rover logo under the stickerPGG500340 | COOLING FAN & VISCOUS UNIT TD5 + PUMA DEFENDER - DISCOVERY 2 | Eurospare | Defender 2007 onwards | Britcar (UK) Ltd
2014, MY14 Discovery TDV6, Fuji White (2018-Now)
2003, Discovery 2a, Td5 Manual, Zambezi Silver (2012-2018)
2007, Adventure Offroad Campers, Grand Tourer (2015-Now)
ChatterBox
I've not seen this many viscous fan failures ever on the same Land Rover. Certainly not a genuine one, which is all I use, its the same part number for both the TD5 and the TDCi (puma) engine.
The thermostat was my obvious first thought, again its an item I only use genuine and would still be looking at this as the culprit. My other thought is remove the radiator and have it checked out for any blockage.
In both faults if not enough heat is being pushed onto the viscous unit, then it wont lock up. Try putting the A/C on (the electric fan will then engage) see if that makes any difference, but again if there is not enough flow through the radiator and therefore not enough heat, same thing.
Is it using any coolant? any leaks?
Regards
Daz
P.S also remove the fan assembly and make sure all the fins on the front of the viscous unit are clean and free of dirts crud etc.
Last edited by DazzaTD5; 2nd October 2015 at 10:16 AM. Reason: more info
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