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Thread: Dopey Qstn1 - Removing Disco Viscous Fan

  1. #1
    schuey Guest

    Dopey Qstn1 - Removing Disco Viscous Fan

    Gday all,
    can anyone tell me how you go about removing the radiator viscous fan from a Tdi??
    Do I have to remove the radiator to get access first or just go straight to the large bolt in the centre of the fan?
    Or perhaps the 4 small bolts around the centre bolt?

    I stuffed around for ages on the weekend trying to get proper access and I don't know whether I was using the wrong tools but I found it difficult to get anything off.

    Thanks

  2. #2
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    just the big bolt in the middle then lightly drift it forwards..

    Depending on if you still have the shroud in lace or not you may need to unfasten that and slide it back over the fan to effect removal.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
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  3. #3
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    Remember the 32mm I think fan bolt undoes the other way, Righty Loosy
    Watch the cooling fins if it slips

  4. #4
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    No offence guys but I didn't find your explanations completely clear.

    Schuey, go to Repco/Supecheap, etc. and get a Ford viscous hub spanner (32mm, thin, offset open-ender) - shouldn't be much more than $10.

    Put in onto the big nut at the back of the fan hub, then give it a couple of clouts with a hammer from right to left, as you stand in front of the car, (i.e. from driver's side towards passegner side) because it's a left-hand thread. Once loosened, it should spin-off easily. As said, you might have to unclip the shroud to get the fan out.

    Once out, I'd suggest you take the shroud right out and cut it in half vertically. That is, cut through the centre of the top and bottom edges. Then drill a 5 or 6mm hole either side of both cuts. When you put the shroud back in, tie the two joins together with cable ties. Now it will be very easy to remove the driver's side half for future fan removal, injection timing adjustment etc. Hope this helps.
    Ian &
    Leo - SIII 109/GMH3.3
    Daphne I - '97 Disco 300Tdi Manual
    Daphne II - '03 Disco Td5 Auto

  5. #5
    schuey Guest
    Thanks all round fellas.

    I just wasn't sure what to start pulling off.
    So I'll go and get a 32mm viscous hub spanner and try my luck, remembering to go the opposite of a normal thread.

    Leo,
    some good ideas there. That fan shroud was really starting to get in the way when trying to get in that area. I've got to do the timing belt soon so this will hopefully allow me to get in that area and see what's already been done.....or not.

  6. #6
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    I just bought a 32 mm fan hub spanner this week. Supercheap didnt have them. Repco ordered it in next day for $34. ABW brand. Works very well - very hard to do the job without it.

    I'm using a fan and clutch from an XF falcon which bolts straight on as the rover clutch is $300 while a ford one is less than $100. The plastic fan blades need to be cut down about 15mm to fit in the shroud however at this stage I'm using it without the shroud and its fine albeit a little hazardous in the engine bay when the engines running. The ford fan is a fair bit larger and covers most of the radiator so the shroud is probably not 100% necessary.......If it gets hot on my next beach trip, I'll put the shroud back on.


    Also an EA falcon fan fits as well but the offset is different to the XF type meaning the fan sits closer to the radiator. XF's also used metal fans which fit also but are hard to cut down neatly.

  7. #7
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    Hi Mark,

    What happened to your original fan - did the clutch give up the ghost? Thanks for the info on Ford fans - might be very useful one day.

    I'd suggest you do cut-down the blades and re-fit the shroud. Not only because that big uncovered fan must be very scary and dangerous but because the shroud ensures all the air moved by the fan comes through the radiator. An uncovered fan actually 'recycles' a lot of air around the blade tips.
    Ian &
    Leo - SIII 109/GMH3.3
    Daphne I - '97 Disco 300Tdi Manual
    Daphne II - '03 Disco Td5 Auto

  8. #8
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    An uncovered fan actually 'recycles' a lot of air around the blade tips.

    What Ian said, & if it's pulling recycled air it ain't pulling ambient air from the front of the rad.

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