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Alan S



Member Since: 22 Sep 2019
Location: South Devon
Posts: 17

United Kingdom 1987 Defender 90 2.5 TD CSW Coniston Green
2.5 TD 19j. Over heating in long hill climb
Hi

Does anyone have any ideas on curing my 2.5 TD J19 engine get very hot when climbing up long hill.

She has alway been gutless on any hill even gradual hills more so when driving on Motorway at 55 -60 mpg will drop to 40-50mpg.

Timing on pump is set at std with lock pins. I have read about advancing time .

Any Advise would be appropriate.

Regards
Alan S
Post #802214 14th Nov 2019 10:17am
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Scotm



Member Since: 28 Feb 2014
Location: Aberdeenshire
Posts: 666

Scotland 2012 Defender 110 Puma 2.2 SW Orkney Grey
Have you checked the condition of the radiator? If it is old it could be that the poor condition of the fins or restricted flow is causing this.
Post #802216 14th Nov 2019 10:38am
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Alan S



Member Since: 22 Sep 2019
Location: South Devon
Posts: 17

United Kingdom 1987 Defender 90 2.5 TD CSW Coniston Green
Hi

Thanks for reply.

New rad fitted under two year ago. Rad fins cleaned after every off road trip. Antifreeze changed and check very clean. New water pump this year . All hose good condition no water loss.

Regards
Alan S
Post #802218 14th Nov 2019 10:45am
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Paddie42



Member Since: 24 Apr 2014
Location: Hamphire
Posts: 230

England 2003 Defender 110 Td5 SW Belize Green
You mention it's always been "gutless". Have you checked the MAF is working? I simple check is to unplug it and take it for a test drive.

I'm not sure if this would affect the temperature overall, but it might improve things.

By the way I wish I could get those mpg figures out of mine ...
Post #802220 14th Nov 2019 11:18am
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Scotm



Member Since: 28 Feb 2014
Location: Aberdeenshire
Posts: 666

Scotland 2012 Defender 110 Puma 2.2 SW Orkney Grey
Quote:
Have you checked the MAF is working?


Have you read the original post? Rolling with laughter

The 19j engine is pre electronics!
Post #802223 14th Nov 2019 12:01pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Thermostat opening

waste gate not close

fuel starvation
Post #802229 14th Nov 2019 1:02pm
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mini Anaconda



Member Since: 23 Aug 2016
Location: Thames Valley
Posts: 783

United Kingdom 
Does a 19J have a viscous fan?
I replaced the viscous fan on my 200tdi and that made a big difference as the old one had failed. BORG - Bucks & Oxon 4x4 Response Group
Post #802231 14th Nov 2019 1:15pm
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Alan S



Member Since: 22 Sep 2019
Location: South Devon
Posts: 17

United Kingdom 1987 Defender 90 2.5 TD CSW Coniston Green
dorsetsmith wrote:
Thermostat opening

waste gate not close

fuel starvation


Thermostat good check when changing water pump.

Waste gate pressure good operating to spec on road test.

New fuel filter .

Regards
Alan S
Post #802232 14th Nov 2019 1:40pm
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Alan S



Member Since: 22 Sep 2019
Location: South Devon
Posts: 17

United Kingdom 1987 Defender 90 2.5 TD CSW Coniston Green
mini Anaconda wrote:
Does a 19J have a viscous fan?
I replaced the viscous fan on my 200tdi and that made a big difference as the old one had failed.



New viscous fan coupling unit fitted .

Regards
Alan S
Post #802233 14th Nov 2019 1:41pm
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Alan S



Member Since: 22 Sep 2019
Location: South Devon
Posts: 17

United Kingdom 1987 Defender 90 2.5 TD CSW Coniston Green
The 19j has a oil cooler integral with the rad.

Just thinking if an additional oil cooler my be an idea.

Or. Replace current viscous fan with electric .

Would leave issue with lack of power. Any advise on pump timing ?

Regards
Alan S
Post #802234 14th Nov 2019 1:48pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Clogged fuel filter/air filter.? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #802236 14th Nov 2019 2:01pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554


Click image to enlarge

https://forums.lr4x4.com/topic/102607-19j-...ntlocking/



Click image to enlarge


Last edited by dorsetsmith on 14th Nov 2019 3:05pm. Edited 1 time in total
Post #802239 14th Nov 2019 2:49pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8026

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
40 to 50mpg on a 19J honestly?

if you chnage down a gear or tackle the hill a gear lower does that help reduce temp, just thinking EGT temps bringing it up under load.

the 19J was good for its time, well i felt mine was at the time, the time when most traffic on main roads was at 40-50mph not the 50-60mph now and everyone near enough slowed down on long hill climbs. nowdays vehicles tend to keep the desired 70mph on any incline and the expectation is for every vehicle to do the same. maybe its just been worked too hard?

mine never liked sitting on long hills at 60mph. once it got to 60mph that is.

check handbrake not binding
unrestricted air flow to engine
coolant circulating as it should

an indication of EGT would prob show it going up and creating the heat under hard load. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #802242 14th Nov 2019 2:58pm
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LandRoverAnorak



Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

United Kingdom 
Re: 2.5 TD 19j. Over heating in long hill climb
Alan S wrote:
She has alway been gutless on any hill even gradual hills more so when driving on Motorway at 55 -60 mpg will drop to 40-50mpg.

On the basis that no-one measures their progress up hills in mpg, I assumed it was a typo and should have said mph. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia
Post #802243 14th Nov 2019 3:16pm
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Alan S



Member Since: 22 Sep 2019
Location: South Devon
Posts: 17

United Kingdom 1987 Defender 90 2.5 TD CSW Coniston Green
Yes sorry Typo. MPH not MPG

Hand brake set correctly.

Air flow good . Fitted with snorkel inlet facing forward

Coolant good flow no air lock

In most cases have to drop down to 4th on steeper hill down to 3rd

Not difference in high temp

Mainly when engine under load of which you would expect but not so hot.

Regards
Alan S
Post #802247 14th Nov 2019 3:36pm
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