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Thread: TDi 4.2 Heater hose size

  1. #1
    Travelling Podologist Cuppa's Avatar
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    TDi 4.2 Heater hose size

    Hi all,
    Can anyone tell me what ID size hose I should buy to extend the heater hose in my 2006 TDi 4.2 Patrol.
    It would make life much easier if I can purchase the hose before disconnecting the old one.
    Thanks
    Cuppa

    2006 4.2TDi ex-Telstra Remote area Camper. 425w roof mounted solar, 360Ah Aux batts, BCDC1240, Onboard hot & cold pressurised & filtered water, (25 litre hot water calorifier), ARB fridge, ARB freezer, Built in kitchen, heaps of easy access storage, 240v, 3” Genie exhaust + dynotune, 2” lift, 3900kg GVM upgrade, second glovebox, ROH Blaktrak steel wheels, Bridgestone D697's (now Toyo RT's), Redarc gauges/pillarpod, Hema HX-1, Icom 450 CB, dual rear view cameras, Onboard 30amp Victron mains charger, second glovebox, dual seat conversion, TPMS, Boss PX7 onboard air with 9 litre tank, 350w inverter, Steel bullbar, Harrop Eaton diff lock (front), Warn winch, Snorkel, Dual spares , 160 litre water tank, 180 litre fuel in two tanks (approx 1200km range) 2010 Tvan Tanami. (incl another 70 litre water tank) with matching wheels/tyres (& 3rd spare)
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  3. #2
    Travelling Podologist Cuppa's Avatar
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    Well it seems that it's 16mm (5/8") ID.

    I'm looking at running the hoses along the chassis rails & up into the canopy. Easiest would be on the passenger side, but I'm uncertain of how close to the turbo is too close. Any thoughts?
    Also has anyone added protection to hoses, don't want them getting 'sliced' by flying rocks. If so what did you use?
    Cuppa
    Last edited by Cuppa; 6th February 2012 at 06:35 PM. Reason: afterthought :-)

    2006 4.2TDi ex-Telstra Remote area Camper. 425w roof mounted solar, 360Ah Aux batts, BCDC1240, Onboard hot & cold pressurised & filtered water, (25 litre hot water calorifier), ARB fridge, ARB freezer, Built in kitchen, heaps of easy access storage, 240v, 3” Genie exhaust + dynotune, 2” lift, 3900kg GVM upgrade, second glovebox, ROH Blaktrak steel wheels, Bridgestone D697's (now Toyo RT's), Redarc gauges/pillarpod, Hema HX-1, Icom 450 CB, dual rear view cameras, Onboard 30amp Victron mains charger, second glovebox, dual seat conversion, TPMS, Boss PX7 onboard air with 9 litre tank, 350w inverter, Steel bullbar, Harrop Eaton diff lock (front), Warn winch, Snorkel, Dual spares , 160 litre water tank, 180 litre fuel in two tanks (approx 1200km range) 2010 Tvan Tanami. (incl another 70 litre water tank) with matching wheels/tyres (& 3rd spare)
    A Nomadic Life (Blog)

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    Expert Rip'n'Shred's Avatar
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    Why do you want to move them? I have seen a thick type of corrugated foil on hoses before not sure where you would get it from though, maybe parts shop. I wouldn't be too keen to put them anywhere near turbo. Long term heat would harden the hoses and they would crack easy.
    GU IV 2006 4.2 TDi wagon

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    Travelling Podologist Cuppa's Avatar
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    Quote Originally Posted by Rip'n'Shred View Post
    Why do you want to move them?
    'cos i'm fitting this marine heat exhanger hot water service in the canopy.

    So how close is too close? I reckon I can keep the hose around 6" away from the turbo's heat shield.

    Cuppa
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    2006 4.2TDi ex-Telstra Remote area Camper. 425w roof mounted solar, 360Ah Aux batts, BCDC1240, Onboard hot & cold pressurised & filtered water, (25 litre hot water calorifier), ARB fridge, ARB freezer, Built in kitchen, heaps of easy access storage, 240v, 3” Genie exhaust + dynotune, 2” lift, 3900kg GVM upgrade, second glovebox, ROH Blaktrak steel wheels, Bridgestone D697's (now Toyo RT's), Redarc gauges/pillarpod, Hema HX-1, Icom 450 CB, dual rear view cameras, Onboard 30amp Victron mains charger, second glovebox, dual seat conversion, TPMS, Boss PX7 onboard air with 9 litre tank, 350w inverter, Steel bullbar, Harrop Eaton diff lock (front), Warn winch, Snorkel, Dual spares , 160 litre water tank, 180 litre fuel in two tanks (approx 1200km range) 2010 Tvan Tanami. (incl another 70 litre water tank) with matching wheels/tyres (& 3rd spare)
    A Nomadic Life (Blog)

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    Talk to someone like Pirtek about heat shielding the hoses near the turbo, with the right shielding 6" shouldn't be a problem.

    Tony

  7. #6
    Expert Rip'n'Shred's Avatar
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    Interesting idea.....

    Couldn't say for sure but I imagine probably be ok, could just shorten the life of the hoses though. I would at least carry spare hose and coolant just to be sure.

    Maybe you could make some sort of a shield near the hoses?
    GU IV 2006 4.2 TDi wagon

  8. #7
    Travelling Podologist Cuppa's Avatar
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    Quote Originally Posted by Rip'n'Shred View Post
    Maybe you could make some sort of a shield near the hoses?
    I might do that. I bought a 4' length of silicone hose today, having learned that it's much more resistant to heat damage.

    I'm a bit concerned that teeing into the coolant system before the heater might result in the cabin heater not getting as warm, or taking longer to heat up, but if it's a problem I should be able to fairly easily add a 'bypass' with a couple of 3 way ball valves, to give either the cabin heater or the hot water service priority.

    Cuppa

    2006 4.2TDi ex-Telstra Remote area Camper. 425w roof mounted solar, 360Ah Aux batts, BCDC1240, Onboard hot & cold pressurised & filtered water, (25 litre hot water calorifier), ARB fridge, ARB freezer, Built in kitchen, heaps of easy access storage, 240v, 3” Genie exhaust + dynotune, 2” lift, 3900kg GVM upgrade, second glovebox, ROH Blaktrak steel wheels, Bridgestone D697's (now Toyo RT's), Redarc gauges/pillarpod, Hema HX-1, Icom 450 CB, dual rear view cameras, Onboard 30amp Victron mains charger, second glovebox, dual seat conversion, TPMS, Boss PX7 onboard air with 9 litre tank, 350w inverter, Steel bullbar, Harrop Eaton diff lock (front), Warn winch, Snorkel, Dual spares , 160 litre water tank, 180 litre fuel in two tanks (approx 1200km range) 2010 Tvan Tanami. (incl another 70 litre water tank) with matching wheels/tyres (& 3rd spare)
    A Nomadic Life (Blog)

  9. #8
    Expert Frontbumfab's Avatar
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    Digging up an old thread but i did a google search and found this. Wondering if heater hose size would be the same for my 89 gq.

  10. #9
    Patrol God threedogs's Avatar
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    Why not used lagged copper with a few flexi joints
    Just received my 12v water solenoids today, maybe what
    you need instead of using ball valves use a toggle switch
    Last edited by threedogs; 27th August 2013 at 06:10 PM.
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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