Maverik Posted April 8, 2011 Share Posted April 8, 2011 Hello, just noticed my viscous unit has given up the ghost, firstly can I fit a 300tdi viscous unit into a 200tdi fan then is the thread the same so it fits onto a 200tdi waterpump pulley? - there seems to be more OEM 300tdi units out there over 200tdi ones... anyone got any reccomended brands? Cheers Mav Quote Link to comment Share on other sites More sharing options...
western Posted April 8, 2011 Share Posted April 8, 2011 different part numbers, so I suspect different threads for 200 & 300Tdi's Defender 200Ttdi ETC7238 300Tdi ERR2266 Quote Link to comment Share on other sites More sharing options...
minimaquinas Posted April 8, 2011 Share Posted April 8, 2011 hi they are different thread size as i had the same problem but it is same as a td hope this helps Quote Link to comment Share on other sites More sharing options...
western Posted April 8, 2011 Share Posted April 8, 2011 200Tdi viscous hub is the same as used on the TD engine, see item 10 the TD/200tdi won't fit a 300Tdi . 300tdi see item 2 Quote Link to comment Share on other sites More sharing options...
western Posted April 9, 2011 Share Posted April 9, 2011 glad you found the right hub, hope it lives long. Quote Link to comment Share on other sites More sharing options...
Range Rover Blues Posted April 10, 2011 Share Posted April 10, 2011 Are the 300TDi ones RH thread, I can't remember I seem to rememeber that my serpentine V8 is RH but not the TDi. If it's the same spanner then is it likely to be the same thread? Quote Link to comment Share on other sites More sharing options...
western Posted April 10, 2011 Share Posted April 10, 2011 Are the 300TDi ones RH thread, I can't remember I seem to rememeber that my serpentine V8 is RH but not the TDi. If it's the same spanner then is it likely to be the same thread? my LR RAVE info says 300Tdi viscous unit is also LH thread. Quote Link to comment Share on other sites More sharing options...
Range Rover Blues Posted April 12, 2011 Share Posted April 12, 2011 Been out and checked in the meantime, our TDi has an electric now anyway. As far as I can tell it's the same thread as a pre-serpentine V8 and uses the same spanner, the RH thread visocus uses a smaller spanner IIRC (I bought a double ended one and it fits EVERYTHING from the LSE down to my 1298cc Escort). Quote Link to comment Share on other sites More sharing options...
Prith Posted August 29, 2018 Share Posted August 29, 2018 I recently heard that a 300TDI fan has more blades than a 200tdi, so is it possible to fit a 300tdi fan onto a 200tdi viscous unit for better cooling here in India? Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 29, 2018 Share Posted August 29, 2018 Why would you think it cools better because of the number of blades? Quote Link to comment Share on other sites More sharing options...
monkie Posted August 29, 2018 Share Posted August 29, 2018 I can understand why you think it, but it is a misconception that more blades = more air moved for a fan. More blades can however make a fan quieter. Given the clatter of the Tdi engines I can't say I've ever heard any difference between the two. Quote Link to comment Share on other sites More sharing options...
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