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Thread: Td5 Overheating - your thoughts...

  1. #11
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    Pulled the water pump today - tedious.

    I thought these pics were interesting. Impellers looked brand new which was unexpected.



    However the drive side looks like it has failed in the dogs. Its like they've shattered.

    A question for the learned... is the old pump a genuine pump or aftermarket? It doesn't look genuine based on the pictures I've seen of them.



    My other concern relates to the new one which isn't genuine. I saw a picture of another failed pump where the dog has spun on the axle and seperated. I'm looking at this one and thinking the drive dog looks like it has just been pressed onto the axle and driven via splines, and so potentially susceptable to the same failure. Any thoughts, as I'm half inclined to find a genuine pump so that I just don't have to worry about it while touring a long way from home.



    I think a genuine pump looks like this (hopefully)

    Td5 Overheating - your thoughts...-s-l1600a.jpg

    Also, huge thanks to dado.mago for the write up at:

    https://www.aulro.com/afvb/newreply....eply&p=2165057

    Quote Originally Posted by dado.mago View Post
    Time to return the favour from other AULRO members.

    Here you will find all the instructions for the Td5 water pump replacement.
    Hope it is clear enough.

    https://www.dropbox.com/s/wbb1jnui9v...ter%20pump.pdf

    Enjoy
    Attached Images Attached Images
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  2. #12
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    Mate you do not have to do all that.
    If you start at the front it is much simpler.
    If you are changing the bracket to block(hidden) o ring you have to remove the bracket anyway.
    First you remove and move aside the aircon compressor
    Next remove the belt. (whoops loosen the 3 bolts on the power steering pulley first)
    Next remove the power steering pump and put aside. No need to drain or anything . held by a few bolts.
    This will give access to the bolts inside holding the bracket to the block.
    Undo the bolts at the back of the bracket. you may need a 3/8 drive socket with a wobble extension for the middle bolt.
    remove bracket complete with water pump.
    Of course you have already removed the hoses.
    Simple as that.
    remember to replace the "o" ring which is actually square from the bracket to block.
    Regards PhilipA

  3. #13
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    Maybe the reason those impeller blades look so new is because they have been having a rest due to not spinning...

    Wouldn't have a clue if either of them is genuine.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  4. #14
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    Quote Originally Posted by PhilipA View Post
    Mate you do not have to do all that.
    If you start at the front it is much simpler.
    That's the way the mechanic does it also and then changes the pump on the bench. He said people do it either way.

    I had to go one way or the other and just followed the guide and RAVE.

    Quote Originally Posted by Tins View Post
    Maybe the reason those impeller blades look so new is because they have been having a rest due to not spinning...

    Wouldn't have a clue if either of them is genuine.
    It mustn't have been doing much work!
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  5. #15
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    Quote Originally Posted by Slunnie View Post



    It mustn't have been doing much work!
    Says a bit about the cooling system really if it's only just decided to get hot.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  6. #16
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    Quote Originally Posted by Tins View Post
    Says a bit about the cooling system really if it's only just decided to get hot.
    They're pretty crazy, they don't seem to make much heat. I've had the radiator all full of mud and it didn't overheat either.

    I'm assuming the pump has only just broken though.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  7. #17
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    Quote Originally Posted by Slunnie View Post
    They're pretty crazy, they don't seem to make much heat. I've had the radiator all full of mud and it didn't overheat either.

    I'm assuming the pump has only just broken though.

    Only time mine has ever got hot was when I first discovered they had used plastic dowells to locate the cylinder head

    My TDi, on the other hand.... Actually, I shouldn't knock it. It's problems came from me incorrectly bleeding the system.
    ​JayTee

    Nullus Anxietus

    ​Getting involved in discussions is the best way to learn.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  8. #18
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    I wouldn't expect to see any wear on the steel impellor blades and the splined press fitted impellor looks fine to me. However in what condition are the other dogs and does the old pump's shaft spin freely?
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
    VK2HFG and APRS W1 digi

  9. #19
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    Td5 Overheating - your thoughts...

    Quote Originally Posted by PhilipA View Post
    ……….. No need to drain or anything . held by a few bolts
    remove bracket complete with water pump.
    Of course you have already removed the hoses.
    Simple as that.
    remember to replace the "o" ring which is actually square from the bracket to block.
    Regards PhilipA
    Actually, the “O” ring between the bracket and the engine block is circular, not square.

    Regards
    Onebob
    LROCV member #131
    1999 build D2 TD5 Auto, Mantec snorkel, 2" LRA spring lift, ARB on board air, Ashcroft ATB, CMM air ram CDL shifter, swag & gold pans ....

  10. #20
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    Sigh!
    It has a square profile not like a donut.
    Of course it is round.

    Regards PhilipA

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