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Thread: Coolant refill help

  1. 28th May 2015, 06:50 PM #1
    Scotty85's Avatar
    Scotty85
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    Coolant refill help

    G'day guys,

    Today I went and bought some OAT red coolant concentrate. I took off the bottom radiator hose and put the garden hose into the expansion tank and flushed out the old water.... (previous owner only had water in there) Lots of orange/rusty water came out. So reconnected the bottom hose and mixed my coolant 50/50 mix. Went to add it via the expansion tank and could only get about 6 ltrs in before it overflowed. Top bleed screw was off too and only clear water was coming out, no coolant Ok so am I missing something?? I know the system can hold about 13 ltrs. How do i get the coolant in? Should I just pour the concentrate straight in and let it mix in the water already in there?

    I have searched the forums and found a couple threads, however they were all different and don't make sence (to me lol). Help me please! 99 Defender Td5
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  2. 28th May 2015, 07:39 PM #2
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    Blknight.aus
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    try this
    Dave

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

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  3. 28th May 2015, 07:40 PM #3
    jimr1
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    Hi Scotty , do you know how much fluid you drained out ? Did you catch It in a bucket or bowl . The thing is It's hard to get all your fluid out . You can't drain you heater , plus It can sit in hoses , and in the block . The thing is you can't put more in than you took out , If you haven't run It , you can probably get a lt. in the heater . Jim
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  4. 28th May 2015, 07:47 PM #4
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    rick130
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    Before adding fresh coolant I'd use an acid based cleaner such as Tectaloy HD2 or Cummins/Fleetguard Restore Plus.

    This will neutralise any corrosion present and not overwork the anti-corrosion package in the coolant.
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  5. 28th May 2015, 07:57 PM #5
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    Thanks Blknight. Thats what I was hoping to find 😆 It didn't come up when I searched
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  6. 28th May 2015, 07:59 PM #6
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    Quote Originally Posted by jimr1 View Post
    Hi Scotty , do you know how much fluid you drained out ? Did you catch It in a bucket or bowl . The thing is It's hard to get all your fluid out . You can't drain you heater , plus It can sit in hoses , and in the block . The thing is you can't put more in than you took out , If you haven't run It , you can probably get a lt. in the heater . Jim
    Nah mate, no idea lol. I just ripped off the hose and let it drain away onto the grass.
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  7. 28th May 2015, 08:21 PM #7
    PAT303
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    I did mine last week,removed the thermostat plug and radiator plug and filled via the header tank.If you got scale and rust from the system it's knackered,you need to remove the rad and get it rodded,you are better off starting again with new hoses,thermostat rodded rad etc or it'll cost you $$$$ in repairs. Pat
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  8. 28th May 2015, 08:40 PM #8
    schuy1 Guest
    As pat said. Do it right and save pain later
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  9. 28th May 2015, 10:03 PM #9
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    Blknight.aus
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    if you're going to ddo an acidd flush do it with your old hoses and thermostat in place ...do it before you remove the radiator but after you do a back flush of the heater core and the raiator with fresh water.
    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.
    If you think you're in front on the deal, pay it forwards.
    Reply With Quote Reply With Quote
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