TD04HLA-19t coolant line leak

[Liberterian]

Hi all,

I have just replaced the turbo on my 04GT and have found a coolant leak from the turbo lines.
Without removing the turbo I am unsure whether the leak is from a split in the metal pipe or from elsewhere.
The coolant banjo bolts and crush washers are new with the leak not coming from them.

My question relates to replacing the coolant line (if necessary) as this part is not available in Oz and Subaru have to order it in from Japan (at significant cost as usual).

The coolant line has two banjo bolts and is continuous starting at the top of the turbo, continues down the side of the housing (where the two banjo bolts feed in) and under the bottom of the turbo across to the coolant hose and clamp.

Is it possible to replace this single solid coolant line with two seperate top and bottom lines?
There are many TD04 Subaru turbo kits available but all seem to have seperate coolant lines rather than the one unique bendy one that seems standard.

Any information would be greatly appreciated.
Cheers,
Matt

[kiahatsiu]

Hmm, I recommend changing the washes again. Mine was leaking out of there, from the line that runs back to the block (i think). I ended up changing to speedflow fittings. I will have a look around my house and see if I can find the old line off the turbo. I make no promises though and i won't be home for a week.
Failing that, take your banjos out, go to a place that sells speed flow and match the threads with new fittings and change to hose and fittings!

[Liberterian]

Cheers Ian.
That's really useful information and I'd appreciate any old bits you happen to find.
Ill update the thread as I figure out where the leak is.
Thanks again.

[kiahatsiu]

I don't see why you couldn't change to separate line style used on the vf style turbos, but I really think the problem is going to be in the crush washers.

[kiahatsiu]

Right, I had a few coffees and my brain is working a bit again. You need to get some speed flow fittings that match your banjo bolts thread, and go to a -8 (dash8) fitting. The -8 equates to 1/2 inch, which is pretty much the dia. of the coolant hoses. The lower one that returns to the block (the one I replaced) is pretty straight forward, as the hose is long enough to fit onto the -8 barb. The one that comes from the plastic header tanks is a bit more of a challenge due to the bends in it, that said, if you measure it, I am sure any of those hose doctor* places will make a natty little hose for you, and leaks will be a thing of the past.


2 x http://www.furiousperformance.com.au/re ... _item.html to replace banjo bolts

1 xhttp://www.furiousperformance.com.au/r ... -Hose-Ends for the line that comes from the plastic coolant tank.

1x http://www.furiousperformance.com.au/re ... _item.html , it is a straight connector which would be the return to the block.

PLEASE CHECK THESE SIZES AND THREADS FIRST, as i am 4000km away from an form of subaru at the moment, and I am doing this from memory. I am a little sketchy on the thread size of the banjo replacements, and also of the angle needed on the angled hose fitting. But this is roughly what I did to solve my leaking washer issue.

* not actually a doctor, do not let them examine your genitals.

[Liberterian]

Cheers Ian,

Invaluable information and links.
This is what I wanted to do and the road I think I'm going to head down.
Very much appreciated mate.

Matt

[kiahatsiu]

Bit more info, I used push on fittings, -8 to 1/2", They are on that site. And my bent join was 45 degrees. All we you need to do is match the banjo thread and you are away.

[Liberterian]

Thanks again Ian.
I've had a good look at the site and the fittings you sent the links for are the ones that I need. The only thing I'm not finding is the correct size banjo fitting that the bolts go through. There are banjo fittings but I'm not sure of the sizing and how they connect to the fitting on the end of the lines. Push-in? Will do more research.
Can I ask what kind of hose/line you used?

Cheers,
Matt

[kiahatsiu]

I think I just used the hose that was on there. If you bought about 1m of 1/2" hose from pirtek you would be fine. There are a few intricate bends in the hose that comes from the little plastic coolant tank, but i think a pirtek dude could make that.
The push fittings only have a single barb rather than the double barb of the ones I linked to. The idea there is you put the hose on, then use the clap to secure them, much better than the barbs.
If you took one of those banjos out and went to autobarn with it I am sure they could match the thread too, then you are set. Even if you bought the fittings from them it wouldn't cost you much more.

edit: just so you know what I am thinking....this (http://www.furiousperformance.com.au/re ... _item.html) would replace your banjo bolt (thread match permitting), with the tapered end going into the core of the turbo. This (http://www.furiousperformance.com.au/re ... n-Fittings) would then screw onto the end protruding from the turbo, and the coolant line would slip onto the fitting. Clamp the hose down and you are away. Oh, and this the bent fitting I used for the top hose, http://www.furiousperformance.com.au/re ... n-Fittings .

[kiahatsiu]

hmm, just noticed you are in the northern rivers. I assume this is like northern NSW, so just popping down to pirtek and autobarn aren't that easy are they?

[Liberterian]

Cheers Ian.

Yes is a bugger being in the country when it comes to just popping down the road for turbo/performance parts/tunes etc.
I work in Lismore (and the Goldy is only an hour away if need be) but no pirtek or hose doctor in town. There is an autobarn that I will check out for fittings today.
Otherwise all the links you sent me are great to buy online.
All your advice and assistance is greatly appreciated.
Matt

[Liberterian]

Ian,

I was just looking at the banjo bolt link you gave me http://www.furiousperformance.com.au/re ... _item.html and it's only for -4 where as the other fittings were -8.

Just want to be sure before I purchase online.
Cheers