Vehicle & Technical > Discovery
Gettin a bit hot... viscous fan?
BK:
Do what I did,have both viscous and electric,put the leccy on a separate switch (fan £10 from scrappy)and have the viscous on anyway,if the viscous packs up,youve got the leccy fan as back up and vice-versa
Pete:
I would be tempted to look at the fan last. I ran my TDi for nearly two years with no fan fitted at all, only got really warm once,on a long steep lane in low ratio in the middle of August.
TDis naturally run quite cool, unless there is a cooling system fault. One cause could be half the rad clogged with mud, or an air lock.
Pete.
Range Rover Blues:
--- Quote from: BK on February 08, 2008, 23:34:19 ---Do what I did,have both viscous and electric,put the leccy on a separate switch (fan £10 from scrappy)and have the viscous on anyway,if the viscous packs up,youve got the leccy fan as back up and vice-versa
--- End quote ---
No room in my case, LSE has the air conn electric fans, but for some reason (worth knowing) the 300 series/soft dash only had 10" fans on the air conn whereas earlier cars had 12" fans. The 10" fans are useless on their own but can't be upgraded becasue the condenser was moved to the radiator, so there isn't room.
Skibum346:
--- Quote from: Ja1983 on February 08, 2008, 18:03:07 ---if electric fans worked better, surely they would be standard fit... i recall reading that the viscous unit was favoured due to the likely workload and temperature extremes its likely to encounter..
got a nice clean intercooler to fit aswell, and its booked in tomorrow for a replacement viscous jobby!
fingers crossed... working through the to do list faster than its growing at the mo! :lol:
--- End quote ---
Viscous is more efficient (according to RRB... my favourite guru! :lol:) but the trouble is you have no control of it and if yor wading it can chuck tons of water over the engine causing problems. Fitting an electric fan offers the opportunity to switch it off when wading.
Besides which... everyone loves to tinker! :doh: 8-[ :oops:
hrox:
i recently removed my viscous from my 300 tdi Auto and replaced with a pug electric with a switch. 2000 miles on and never needed it to be switched on that includes a 1 hr traffic jam of going no where. i dont tow a caravan but regulary had all 7 seats full and either a small halfords trailer and/or shortly a roof rack full of camping gear and i still think its the best thing i done to the disco so far.
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