Coolant leak under turbo

[stallie]

Parked at home tonight and went out later just on dark to find a puddle of coolant under the car.

After much swearing, I found it's dripping down roughly under the turbo. It's pooling on the edge of the engine block on the ledge just in front of the bell housing.

But in the gloom I couldn't find any coolant hoses that are leaking in the area. They all seem clean, but obviously I've missed the culprit.

Does anyone have any likely candidates? Hose or gasket?

[stallie]

Should add 2003 TD5 D2a

[scarry]

There is a small hose up behind the turbo,could be the culprit

Mirror & torch may help

[Blknight.aus]

more than likely its the secret cooling hose that no-one knows about.

ring MR automotive and tell them that Dave said to order the MY03 secret cooling hose that no-one knows lives under the turbo and they will send you the right bit to replace it.

remove the acoustic cover
remove the turbo heat shield
look just under the #4 exhaust port about 6 inches down from the manifold where the pipe bends back in from between the firewall and the block just above the bell housing.

is about 3 inches long and it goes from about 1/2"ID to 3/4"ID. bet its never been replaced. I do about 2 a year on the side of the road, usually for people who have a low coolant indicator, good noses, great mechanical sympathy or all of the previous.

you do have an engine saver alarm right?

[alien]

There is a small hose up behind the turbo,could be the culprit

Mirror & torch may help
If it is this one it's pain to do, easy with the manifold pulled back thow;)
The ford falcon heater hose(from the water pump) is the right size and cheaper.
Just cut to length.
The pipe and outlet are 2 different sizes so a straight hose will not fitt.

[Jason789]

Hello stallie,

There is a small hose up behind the turbo. You have to remove the heat shield from the turbo to replace it(I found this the easiest way). I just replaced the thing about a month ago. Easy to do with patience.
While you're at it, consider doing every hose. If that one is leaking then there is a good chance others are already or about to.

Cheers,

Jason

[stallie]

Great - thanks all for the info.

I'll check when I get home tonight, but it sounds like the culprit... I was lucky, there's still coolant in the reservoir, it's only dropped about an inch and I reckon most of it spilt on the drive at home. I didn't notice anything driving home.

Co-incidentally I had just ordered a full set of hoses and other parts from the UK and they shipped yesterday! I was intending to replace all the hoses and keep the current ones as spares.

As for the coolant alarm, I have been away but I am looking at the Madman EMS 1 with all the fruit, but waiting for stock...! It's moved slightly higher up the priority list now.

[bob10]

Great - thanks all for the info.

I'll check when I get home tonight, but it sounds like the culprit... I was lucky, there's still coolant in the reservoir, it's only dropped about an inch and I reckon most of it spilt on the drive at home. I didn't notice anything driving home.

Co-incidentally I had just ordered a full set of hoses and other parts from the UK and they shipped yesterday! I was intending to replace all the hoses and keep the current ones as spares.

As for the coolant alarm, I have been away but I am looking at the Madman EMS 1 with all the fruit, but waiting for stock...! It's moved slightly higher up the priority list now.
I'm in the market for hoses as well, could you please let me know which company you ordered from, and how much, cheers, Bob

[stallie]

It was the hose cap that had split. Pic below. Now to try and work out the part name and number.

https://www.aulro.com/afvb/images/imported/2011/04/1008.jpg

Bob, as for the order, it was from Rimmer Brothers - Triumph Car Parts, MG Rover Car Parts, and Land Rover Car Parts and Spares (http://www.Rimmerbros.co.uk). I ordered a whole lot of other stuff (engine mounts, ignition harnesses etc) so I am not sure of the exact amount. I was ordering through someone else, but went with Rimmers in order to put some Triumph parts on it, but never got around to it and just ended up ordering the lot.

Courier for the 10kg parcel was pretty steep at 85 quid, but I didn't have time to shop around elsewhere.

If you email me I can fling you the order form with the part numbers that I created.

[stallie]

I cant find the cap mentioned anywhere, but looking at the workshop mamual page 26.1.2 I seem to be missing the oil cooler return pipe? The cap seems to be where the hose # 7 should be, feeding into pipe 6?

Judging by the absence of a EGR cooler on the EGR pipe in across the front of the engine, I guess I have a pre EU3 model although it's a 2003 D2a. However the workshop manual inset still show a radiator lower feed hose and oil cooler return pipe around the back of the engine for pre EU03 models, but they're missing on mine.

:confused:

[Disco W.A]

you can buy a cap at any automotive parts store but your right there should be a pipe running to the other side of the engine. is your heater connected?

Roger

[stallie]

Heater seemed to work ok when I tested it briefly when I bought the car but never used it much as it's been summer and only had the car 2 months. The heater inlet pipe off the three way pipe #11 9 & 5 from the workshop manual are all there.

Can't try it now, no coolant!!!

[alien]

On my '99 I have no EGR cooler.
Where you have a plug mine has the "steped" hose(as per other posts) joining to a steel pipe.
This pipe goes over the gearbox and joins a rubber hose leading to the bottom of the radiator.
The other hose of the same size on the radiator leads to the fuel cooler.

Need to ask others what they have I guees.
If you don't get a reply ask in the Technical area if it is right to be blocked off.
I think it's a return from the engine oil cooler.

Wondering if has had a "tempery" repair that didn't get seen to once back.

[Pedro_The_Swift]

Is this any help stallie?
from RAVE,,

edit;
dammit! was fullsize on my PC,,,

[stallie]

Thanks Pedro, that must the the edition before mine as diagram is slightly different, but it's still the same issue, no hose 7,6, or 22...

I opened up the thread about the oil return line in Tech Chatter on suggestion above, as it's a digression from the original leak question...