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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 668

Scotland 
Running hot?
Got a 200tdi Discovery in my Land Rover, making my way back from the lakes, the temperature sat at 90 however after 2 hrs crept up to 95 degrees. At what temperature should I get worried . 1990 200tdi conversion 90
Post #716756 8th Jul 2018 6:55pm
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Lodelaner



Member Since: 04 Feb 2010
Location: Lambourn
Posts: 621

United Kingdom 1988 Defender 90 V8 Petrol ST Shire Blue
Seems absolutely fine to me on a warm day on a run, especially motorway. JB

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Post #716759 8th Jul 2018 7:12pm
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yostumpy



Member Since: 01 Aug 2010
Location: n/kent
Posts: 327

Have you got the correct sender unit and gauge,? i.e. if it was a n/a I think there are are problems matching up the readings!
Post #716762 8th Jul 2018 7:24pm
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dioliahary



Member Since: 18 Jan 2015
Location: Manchester
Posts: 668

Scotland 
I have a non OEM unit fitted 1990 200tdi conversion 90
Post #716766 8th Jul 2018 7:38pm
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Alex1976



Member Since: 23 Jan 2013
Location: Buckingham
Posts: 596

England 
That sounds perfectly with normal from my experience.
Post #716774 8th Jul 2018 8:04pm
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matthamiltonusa



Member Since: 25 Jun 2018
Location: Nashville, TN
Posts: 2

United States 1993 Defender 110 200 Tdi SW Masai Red
I have the same concern with my 1993 Defender 110 200 Tdi. Really hot day on the motorway with the Air con my temp gauge will get really close to the far right edge of the white arc.

What's are the first three items you all would do to try and get the temps lower?

1. Larger intercooler?
2. Replace the cheap parts like temp sender, thermostat, silicon hoses, radiator flush
3. Other ideas?????? 1995 Disco V8
1995 Defender 130 300 Tdi
1993 Defender 110 200 Tdi
1981 Series III 109 Cargo
Post #717105 10th Jul 2018 10:09pm
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Lodelaner



Member Since: 04 Feb 2010
Location: Lambourn
Posts: 621

United Kingdom 1988 Defender 90 V8 Petrol ST Shire Blue
If its in the white bit its OK - nominal, within parameters. So in the confidence that it had a healthy, flushed cooling system with a fully-opening thermostat I'd be happy.

I would add that modern temp gauges mislead drivers by reading in the middle across a range of actual temperatures. Between approx 85 and 110 degrees they will read dead middle - and only rise or fall outside of those temps. Very different from the analogue scale you see on an old school landy. JB

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Post #717132 11th Jul 2018 7:09am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19452

United Kingdom 
Depends how old the coolant is but change it. I’ve always found ore mixes to be more efficient. Diesels Lives Matter. ⛽️🛢️👨‍🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~
I got’ love for Britain, I got’ British pride’. 🇬🇧
Post #717148 11th Jul 2018 10:53am
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Swollock



Member Since: 16 Mar 2013
Location: Wellingborough Northants
Posts: 259

United Kingdom 2008 Defender 110 Puma 2.4 XS CSW Bonatti Grey
Also check the plastic bung/cap on the rad, mine was tight but had been over tighten by previous owner and split stopping the system from pressurizing correctly and used to cause it to run hot when towing up hill or on a hot day. 2008 Defender 110 XS CSW
Volvo S60 T8
Triumph 1200 Rally Explorer
G0UBX
Post #717149 11th Jul 2018 11:07am
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19452

United Kingdom 
Edit* Typo. I meant pre mix coolant* Diesels Lives Matter. ⛽️🛢️👨‍🔧🧰⚙️
And if You Love the Country, then we’re on the same side ~
I got’ love for Britain, I got’ British pride’. 🇬🇧
Post #717151 11th Jul 2018 11:25am
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