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Old 04-29-2004, 01:16 AM   #1
The Deliverator
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Default coolant leaking from under turbo

This is odd.

I just finished re-doing the up-pipe install (because the first time I did it the oil return line blew off the bottom of the turbo).

This time, no oil leak.
But I have got a coolant leak.

I removed and replaced the coolant hose that goes into the turbo from the passenger's side (it's covered in metal heat shielding), got the clamp on nice and snug in the sweet spot between the two raised areas on the pipe. Fired it back up, still have the leak.

It's dripping from/puddling under the metal tube that the shielded hose attaches to, but doesn't seem to be leaking from where that hose meets the tube.

I could really use some help figuring out what the problem is:
1) the metal tube that's attached to the turbo (that the shielded hose connects to)
2) the sheilded hose itself
3) tubo seals? say it ain't so!
4) Something else?

Any help would be greatly appreciated.
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Old 04-29-2004, 02:05 AM   #2
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Push the hose farther on the hardpipe and then pull it back so that the clamp is tight against the bead on the hardpipe.
Mine did this and the above is how i fixed it....HTH
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Old 04-29-2004, 09:55 AM   #3
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Thanks for the suggestion Uncle Scotty.

I'm thinking that maybe the clamp is just tired. I've been able to pull it right off the hard pipe several times with not much effort at all.

I just tried a normal (screw-type) hose clamp this morning; That one made the leak even worse. Which is great, really, because that would seem to bear out that this hose/hardpipe interface is definitely the problem.

After work I'm going to go to NAPA and pick up two or three new squeeze-type hose clamps to replace the stock piece. I figure that having new fresh hose clamps occupying the entire area between the two beads will fix it if anything will.
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Old 04-29-2004, 10:06 AM   #4
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Quote:
Originally posted by stanh04wrx

I'm thinking that maybe the clamp is just tired. I've been able to pull it right off the hard pipe several times with not much effort at all.
I think your hose is borked if you hacve just pulled it off without removing the clamp first.
I've had bad hoses, on the clamped area, that looked ok but leaked.
If it is long enough, try cutting 1/2" off the end and re-installing it....or replace it.
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Old 04-29-2004, 11:45 AM   #5
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Anyone know what inside diameter this hose is? I'd like to pick up a replacement on the way home.

If that doesn't do it I'll replace the crush washers on the other end of the hard pipe. But I'm pretty sure that Uncle Scotty's right and it's going to be the hose.

Dug up a copy of the factory service manual, and it's gotta be either the hose or the washers.
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Old 04-29-2004, 12:07 PM   #6
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you need a better clamp for the coolant return line (that where it's probably leaking.) that will solve the problem. get the one that you can tighten with a flathead (sorry don't know the exact name)
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Old 04-29-2004, 01:05 PM   #7
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Quote:
Originally posted by S-1
get the one that you can tighten with a flathead (sorry don't know the exact name)
worm gear

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Old 04-30-2004, 10:03 AM   #8
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I put on a worm gear hose clamp and... it still leaked.

Pulled off the intercooler, and the problem was instantly apparent. The bolt holding the other end of the hard pipe to the turbo was *really* loose. Tightened that up, no problems since.

I've put 40 miles or so on it and there haven't been any real issues. I think that there may be an exhaust leak somwhere after the downpipe, but that's nothing major.

Thanks for your help with this.
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Old 04-30-2004, 11:51 AM   #9
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It is kind of odd that that was loose and leaked......unless the hardlines were swapped from another turbo.
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Old 04-30-2004, 12:29 PM   #10
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Another possibility would be that someone was removing the turbo for the first time and didn't have even half a clue as to what he should disconnect to get the turbo out.

This inexperienced dude might then have loosened the bolt and then forgotten to tighten it up when he reinstalled the turbo.

Yeah, I think that's what might've happened. But the newbie that did this certainly wasn't me. No sir, not me. Definitely someone else...
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Old 05-02-2004, 05:27 PM   #11
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Quote:
Originally posted by stanh04wrx
...Yeah, I think that's what might've happened. But the newbie that did this certainly wasn't me. No sir, not me. Definitely someone else...
Man - the same guy must've worked on my car a few times too!!
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Old 05-02-2004, 07:01 PM   #12
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Quote:
Originally posted by stanh04wrx
Yeah, I think that's what might've happened. But the newbie that did this certainly wasn't me. No sir, not me. Definitely someone else...

LMAO....

....and a
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