Pipe identification required please

[Iky]

Hi,

 

 

What are these pipes for? there are two together.

The part where the rubber hose ends and goes onto a solid copper looking pipe, one of mine as you can maybe see in the photo has quite a bit of corrosion on it. Although it isn't leaking, it does look a rather manky green colour.

Is it easy to replace? What fluid will leak out if any? are stainless ones available?

 

Thanks in advance, Iky.

Edited November 16, 2010 by Iky (see edit history)

[Terminator]

Looks like coolant pipes to the matrix. The pipes are not standard, so you would need to source replacements. Personally I would clean them up in situ and give them a protective coat of black paint, or source new hoses from Toyota, which will cost more than black paint.

Edited November 15, 2010 by Terminator (see edit history)

[Iky]

Looks like coolant pipes to the matrix.

 

So if i take it off, will it piss out coolant everywhere?

Cheers.

[RobSheffield]

So if i take it off, will it piss out coolant everywhere?

Cheers.

 

Yes it will, and it will need refilling

[Terminator]

Yes it will piss coolant every where. it will also take a bit of time the get the air out of the system as the pipes are the highest point of the system. You could always do what I did to end problems with airlocks .

[Iky]

Yes it will piss coolant every where. it will also take a bit of time the get the air out of the system as the pipes are the highest point of the system. You could always do what I did to end problems with airlocks .

 

Nice idea that A coolant flush is on my list of things to do. HOw much does one of those valves cost and do you have a part no?

[Terminator]

Sorry no part number, but it came from Audi, it is the bleed valve on the A8. It is a very well made part so buying second hand from a breaker will not be a problem. I sourced my from Ebay.

[Iky]

Cheers.

[Iky]

Nice idea that A coolant flush is on my list of things to do. HOw much does one of those valves cost and do you have a part no?

 

Maybe i spoke to soon, I was driving today and parked up and heard a water noise behind the dash, having read other threads on here i shit my pants thinking oh bollox, that sounds like the matrix has shat itself. I couldn't feel any wetness around passenger floor area. So I went outside and saw coolant under the front of the car. I need to take the undertray off yet to see but what are the "weak links in the cooling system towards the front of the engine?

Expansion bottle seems fine and doesn't leak.

[Terminator]

Check your radiator cap, that is know to go. The cap allows hot coolant under pressure to move into the expansion bottle, and suck it back as the engine cools. It is likely that the water on the floor was coolant expelled from the expansion bottle onto the under tray. If you open the bonnet when the system is still hot the expansion bottle can look OK, it is not until the car is cold that the true level low in the expansion bottle car be checked.

 

Just check under each hose at the front of the car for dampness. Just a little air in the system puts huge stress on hoses and joints as the air expands so much when hot.

Edited November 16, 2010 by Terminator (see edit history)

[Iky]

Update, the leak turned out to be a dodgy core plug at the rear of the thermostat housing.

 

Thanks to Terminators advice i have an Audi bleed valve to go on so i can easily bleed the system.

It seems very well made part and it's just what the Supra needs to help the bleeding problems a lot of guys seem to have. (with their Supra btw)

[SupraHuman]

Yepp ol' Phil got a few tricks up his sleeve still, glad you got it sorted.

[johnny g]

Nice idea that A coolant flush is on my list of things to do. HOw much does one of those valves cost and do you have a part no?

 

Sorry no part number, but it came from Audi, it is the bleed valve on the A8. It is a very well made part so buying second hand from a breaker will not be a problem. I sourced my from Ebay.

 

It's called a Coolant Air Release Valve - it's Audi Part # is 4D0 819 159

[Iky]

Yepp ol' Phil got a few tricks up his sleeve still, glad you got it sorted.

 

Cheers, hopefully i can get it all back together and drive the thing.

 

It's called a Coolant Air Release Valve - it's Audi Part # is 4D0 819 159

 

Thanks for that Johnny, that will help others.