Oil Cooler

[Defender=1st]

Hey everyone what are signs of an shagged oil cooler ? mine is Fine (well i think Touchwood) but i know that the early Td5's had a different type or style or whatever to the newer ones. so what are some signs to look out for incase mine starts to die ??
Thanks
Regards Adrian

[Blknight.aus]

when they die they get a hole in them and your oil turns up in your coolant..

when they die in a spectacular fashion The oil gets into your coolant and then if you havent noticed that when the engine is off the cooling system pressure forces it into the sump... when you go for the next start the engine will cook itself, you'll have milky oil, no or very little coolant and a now cactus engine as there was neither a, good oil to protect the engine and b, no coolant to help keep it cool...

Thats not a lot of help the only way to check it properly is to pull it out...

[130man]

Hi, my g/box oil cooler [ 2000 TD5 Defender 130] is a simple loop of pipe running forward beneath and to the right of the engine sump and then back to the box.Mine came loose at the union at the box and cooked the bearings but didn't have anything to do with the coolant for the engine, so no possibility of engine damage. Maybe substituting this simpler style may be an option.Cheers, 130man.

[rick130]

Hi, my g/box oil cooler [ 2000 TD5 Defender 130] is a simple loop of pipe running forward beneath and to the right of the engine sump and then back to the box.Mine came loose at the union at the box and cooked the bearings but didn't have anything to do with the coolant for the engine, so no possibility of engine damage. Maybe substituting this simpler style may be an option.Cheers, 130man.


Nope, won't work very well, not enough surface area for heat rejection.
There's a mile more heat to reject from the engine oil than the transmission oil.

A fluid/fluid heat exchanger is much more effective for a given size than even the best air/fluid heat exchangers like an Earl's, Setrab, etc.

[Blknight.aus]

I was assuming he was talking about the inblock oil/coolant heat exchanger of the TD5.

[Defender=1st]

yer i was because dodnt Land Rover change the design of the Inblock Oil cooler ? after like 03.

[George130]

When mine failed I got the grey sludge in the coolant.

[Defender=1st]

were there any warnign signs that it was goin ??

[George130]

In hind sight yea. Should have just changed it when I did all the head work. It failed in 1000km on the other work. THe day it went everything was fine then we noticed the oil pressure guage drop a little. Pulled over and there was sludge in the coolant. Towed it home and then discovered the oil cooler.

[LandyAndy]

I wonder if a decent auto trans cooler in the return line could be employed to do the job??????.
The fuel cooler is there for one reason only,the plastic fuel tank.Diesel fuel expands greater than petrol,if you didnt keep a full tank of diesel in the heat of summer chances are it isnt needed at all.
Andrew

[duff]

The fuel cooler on the TD5 is identified as a requirement to reduce the potential for the fuel to cook system componants.

Apparently the way the fuel system operates for the TD5, the fuel can get that close to boiling temp.

Have a feel of your fuel filter next summer,,, and that is with it cooled:eek:

[George130]

I looked into building an external unit. Only hassle was the space for the connections. As money was tight I ended up having a custom one built that still fits within the original space. This time it won't leek and has slightly better oil flow.

[Defender=1st]

How much would i be looking at for a New Td5 inblock Oil Cooler ?? and where is a good place to buy one ??
Thanks
Regards Adrian

[George130]

Your best bet is to source the bit from the uk. The entire assembly is sold as one part. $1100 but you do get a new outer housing including the filter mounting points.