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Thread: Almost cooked my td5...

  1. 1st March 2015, 09:02 PM #11
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    simonmelb
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    Quote Originally Posted by Phat-Customs View Post
    Seems that when I was fitting the sensors for my MadMan EMS I have inadvertently left the cap on the header tank loose.

    Whilst driving to newcastle on friday arvo, I was alerted to "water dripping from the bottom of my car" by the car beside me at the traffic lights.

    Thinking it was probly the AC drains dripping, I headed off and travelled around 1K up the road, when I could see a trail of something on the road behind me, pulled up, popped the bonnet, coolant everywhere...

    Ended up putting half a bucket of water in it, so im guessing between 4 and 5 litres, and continued on my journey to the hospital (things always happen at the most inconvenient time hey...)

    Checked the coolant when I arrived at the hospital, and it was down to the "full" mark on the header tank.
    Checked it again before I headed home, and checked it the next morning, still in the same place.
    Ran the car for around half an hour today, trying to get it upto temp, but sitting in the driveway, I couldnt get it past 70 odd degrees.

    I am a bit hesitant to drive it now, but eventually I am going to have to bite the bullet and drive it... REALLY hoping I havnt turned it to poo.

    Any thoughts on the matter???

    Quite possibly irrelevant, but motor has 130,000 kays on it.
    You will quite likely have not done any damage at all. I once did the same thing and lost about 3 litres of coolant, but I had a digital cyl head temp alarm - could see it rise and I stopped when it got close to 100c ( normal temp range is 88 or so).

    So the td5 will not overheat for quite some km with a loose cap - don't ask me how many as I never got there!
    Cheers

    Simon
    2003 D2a TD5, ACE, SLS, Vienna Green.
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  2. 3rd March 2015, 12:01 PM #12
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    CU55TM Disco
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    Finalised the install of my MadMan on Sunday, took her for a test-toast yesterday, all seems well in TD5 Land. Max temps I got were 97* Conditions were late afternoon, freeway, cruise control set @ 110, egts MAX were into the high 400's might have even seen a low 500, but this could be due to no AFM currently.

    Will be watching like a hawk from now on!
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  3. 3rd March 2015, 12:10 PM #13
    discorevy
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    Quote Originally Posted by Phat-Customs View Post
    Finalised the install of my MadMan on Sunday, took her for a test-toast yesterday, all seems well in TD5 Land. Max temps I got were 97* Conditions were late afternoon, freeway, cruise control set @ 110, egts MAX were into the high 400's might have even seen a low 500, but this could be due to no AFM currently.

    Will be watching like a hawk from now on!
    97 is too hot for those conditions , change your thermostat
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  4. 3rd March 2015, 12:12 PM #14
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    Its a new thermostat.
    It was one of the first things I did when I purchased the vehicle. only done about 15K ago.
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  5. 3rd March 2015, 12:22 PM #15
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    Quote Originally Posted by discorevy View Post
    97 is too hot for those conditions , change your thermostat

    Just pulled this from RAVE:

    Thermostat opening temperature:
    ⇒Initial opening 82 ?C (179 ?F)
    ⇒Fully open 96 ?C (204 ?F)
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  6. 3rd March 2015, 02:34 PM #16
    PhilipA
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    Mine runs at 82 all day, maybe 85 on a hot day at 100-110 kmh and that with an original radiator . 92 TD5 auto .

    Hottest ever 103C climbing Alpine Way towing 900Kg camper , and no coolant loss at all in one year.

    So I reckon a radiator back flush at the very least may be in order.
    Regards Philip A
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  7. 3rd March 2015, 03:19 PM #17
    discorevy
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    82-85 is normal for a properly bled , fully functioning td5 under those conditions, as PhilipA has mentioned . I always test a thermostat by holding with tongs and pouring boiling water over /through it until it opens fully , even new ones..... Crude but effective
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  8. 3rd March 2015, 06:57 PM #18
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    Maybe I should have opted for the OEM thermo instead of the britpart alternative...
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  9. 3rd March 2015, 07:20 PM #19
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    Rangeie1981
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    oooops mate... Hopefully its all good!😯
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  10. 4th March 2015, 03:09 PM #20
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    Where are u guys measuring ur coolant temp?
    I got 104 today up a long climb, ac on @90 kph.
    Not loaded or anything, so I'm starting to question the cooling system.
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