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Home > Puma (Tdci) > Coolant temperature issue and limp mode (revisited)
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Eduardo



Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2046

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey

Well,

Finally the new Allisport radiator arrived today and will be installed next week.


Some questions here:

Shall I do a chemical washing of the cooling system to improve the heat transference?
Any advice on this point?

Anyone has used Ceratec from Liquimoly?


Cheers to all thanks for all the advices! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

Post #744490 7th Dec 2018 3:18pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 1944

Chile 2007 Defender 110 Puma 2.4 SW Chawton White

I would not do it unless I see any signs of scale, deposits, corrosion.

I use redish motul Inugel and works well. Any fit for purpose coolant will do well (I would not use supermarket stuff).

I use ceratec but only 1 can. Not sure if makes any difference. Too much of "something" isnt good (Bo in this case). Puma 110" SW

.............................................................
Earth first. Other planets later

Post #744518 7th Dec 2018 6:10pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 1944

Chile 2007 Defender 110 Puma 2.4 SW Chawton White

Eduardo

Have you thought on extending by 2 inches the lower half fan shroud? I was just looking at it and there is some room to do it. Of course not sure if it works but several engines have a complete shroud all around.

Slds Puma 110" SW

.............................................................
Earth first. Other planets later

Post #745234 11th Dec 2018 9:30pm
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Eduardo



Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2046

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey

Already done using the nakatenga extender.

The difference is just 2-5°C less, but do not provide the final solution.

Cheers Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

Post #745291 12th Dec 2018 1:09pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 1944

Chile 2007 Defender 110 Puma 2.4 SW Chawton White

Alright. I mean the plastic tunnel-shapped thing around the fan Puma 110" SW

.............................................................
Earth first. Other planets later

Post #745292 12th Dec 2018 1:36pm
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Eduardo



Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2046

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey

Ahhh...
Anyway the effect should be the same (put the fan more inside the cover)

Cheers! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

Post #745494 13th Dec 2018 1:29pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3562

Italy 2008 Defender 90 Puma 2.4 SW Stornoway Grey

Eduardo

did you install the "original" thermostat or the "cooler" one?

Exists 3 types of thermostat configurations:
- PEM100990 88°C - 96°C HARD SPRING
- PEL500110 82°C - 89°C SOFT SPRING
- PEM101020 82°C - 89°C HARD SPRING

I installed the PEM101020 (original was PEM100990) with uprated intercooler and Nakatanenga fan extender.

Tested the configuration on Morocco desert at more than 45° C and the car was fine also on sand (mine is also remapped)

Soft spring configuration should be a problem during the winter with temp closer to the 0° C or below.... Defender 90SW 2.4 TDCi Stornoway Grey Outback Engineering Limited Edition


Discovery 4 SDV6 XXV Santorini Black Outback Engineering Limited Edition

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Post #745781 15th Dec 2018 10:42am
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 1944

Chile 2007 Defender 110 Puma 2.4 SW Chawton White

Eduardo.

Is your egr inlet pipe blanked? Puma 110" SW

.............................................................
Earth first. Other planets later

Post #745993 16th Dec 2018 2:02pm
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Bergos



Member Since: 08 Aug 2015
Location: Somewhere in Portugal
Posts: 86

Portugal 2007 Defender 110 Puma 2.4 HT Keswick Green

Any results with the Alisport radiator? Bergos

LR Defender 110 HT 2007 (2.4 Puma)
https://www.facebook.com/LR.Wanderlust/

Post #750029 8th Jan 2019 7:08pm
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Eduardo



Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2046

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey

Not installed yet.

Already bought but the funds for the installation was derived to repair the swimming pool Sad Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

Post #750093 8th Jan 2019 10:47pm
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Bergos



Member Since: 08 Aug 2015
Location: Somewhere in Portugal
Posts: 86

Portugal 2007 Defender 110 Puma 2.4 HT Keswick Green

Come on! It's a DIY job! Bergos

LR Defender 110 HT 2007 (2.4 Puma)
https://www.facebook.com/LR.Wanderlust/

Post #750145 9th Jan 2019 12:57pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 1944

Chile 2007 Defender 110 Puma 2.4 SW Chawton White

in 88kkm I think happened twice I got into limp mode because of the cooling system is not up to the job under "demanding circumstances". I am planning to fit an adjustable electric fan controller that comes with a sort of temp probe sensor which is installed through the rad fins and of course I will try to use the A/C fan.

Anyway, I believe relay #6 located under the seat is controlling the A/C fan. Do you see a problem by wiring such controller into the same relay? does the original fan take more than 20 amps?

I´m quite incompetent when it comes to wiring (in other stuff as well of course)

thanks in advance

MK Puma 110" SW

.............................................................
Earth first. Other planets later

Post #756333 4th Feb 2019 8:53pm
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Eduardo



Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2046

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey

Finally I was able to install the new radiator.

So far so good!
Temps was not going over 96°C with a air inlet temp of 34°C.
Car medium load at 120 KPH in 6th gear in a mild lomg slope

Still I need to have more points to compare (higher temps)

Dgardel:
I have the "cooler" thermostat (PEL500110) not problem here with temps below 0°C, Allisport intercooler and the Nakatenga spacer.
I'm not using the remap now to see the behavior and do a VCV learning (still not done)

Cheers! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

Post #757972 11th Feb 2019 4:17pm
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Eduardo



Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2046

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey

Second test

Tested again yesterday with inlet temperatures of 36°C, almost fully loaded in a highway were always develope this problem at high speeds (120 KPH).

Temperature never goes over 100°C staying more of the time in the range of 90-97°C. without the A/C.

So, appears that the radiator change have been the solution for my overheat problems Very Happy

Let´s we see next week


Cheers! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

Post #759384 18th Feb 2019 1:42pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3562

Italy 2008 Defender 90 Puma 2.4 SW Stornoway Grey

Thumbs Up Thumbs Up Thumbs Up Defender 90SW 2.4 TDCi Stornoway Grey Outback Engineering Limited Edition


Discovery 4 SDV6 XXV Santorini Black Outback Engineering Limited Edition

IID Pro MV License

Post #759386 18th Feb 2019 1:48pm
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