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Old 01-15-2002, 10:54 AM   #1
WRBLUEWAGON
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Angry My uppipe is leaking and i have to do it again. I a have a few ??

It's leaking were the turbo meets the uppipe.:monkey:

This is what I think happend. The Eng blot was taken off to shift the motor up to remove the stock cat. When the blot was put back on it did strip and the eng. moved a little and the seal on the uppipe was shot after that.

Here are my question??

do I have to take down the header again to take it out?

Thanks
Eric
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Old 01-15-2002, 11:31 AM   #2
trboCIVIC&WRX
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for starters... whats a "blot"?
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Old 01-15-2002, 11:42 AM   #3
Dori Dori
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I think he meant bolt.
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Old 01-15-2002, 01:53 PM   #4
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what kind of uppipe do you have?
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Old 01-15-2002, 02:51 PM   #5
WRBLUEWAGON
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Vishnu,

But I'm sure it's not the pipe.

Eric
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Old 01-15-2002, 03:37 PM   #6
TurboRex
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I am lazy, so I would loosen the turbo to uppipe bolts and then retorque them to see if that does it. If not, then buy a new gasket and re-install. Maybe the bolts were torqued down properly to begin with.

Greg
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Old 01-15-2002, 04:07 PM   #7
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I've also just completed installing my vishnu uppipe... getting the pipe in wasn't the hard part... but trouble shooting that leak sucked! I would suggest going from up top.... remove the intercooler... then lossen the turbo... make sure you've bolted and retorqued all the bolts... and make sure all the pipes fit in nice and tight... i spent an entire weekend... just trying to loacate where the leak was... and in the end, i just pretty much made sure all the connections and bolts were tight from where the uppipe connects to the turbo and on down... its tedious... but when you've stopped the leak... Thats when all the fun begins. Good luck.

cheers,

curvie
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Old 01-15-2002, 04:22 PM   #8
WRBLUEWAGON
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I just got off the phone with Shiv and here is the deal.

I think it's the turbo to uppipe seal.

But Shiv feels that I should check the bottom seal first because it is the esay one to get to. And he also feels that the bottom one is usual the one to go bad because it only has 2 bolts that hold it in.

I going to order all new seals and try the bottom one first and then go up.

Leaks are not fun but it really is worth the trouble.

My car steal pulls fast and drives really nice.

Eric
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Old 01-15-2002, 04:31 PM   #9
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If your going to do anything with the gasket, I'd suggest buying a new set. If you have the gasket out, it's worth it to replace it with a new one. Both gaskets should be less than 20 dollars from subaruparts. Cheap insurance.

jb
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Old 01-15-2002, 04:36 PM   #10
WRBLUEWAGON
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Ye,

That's what I'm doing.

and did that when I installed the uppipe.

Eric
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Old 01-15-2002, 04:38 PM   #11
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Sounds silly, but you might try doubling up the collector to uppipe gasket if that is indeed where the leak is from... A couple of us have had good results.

jb
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Old 01-15-2002, 04:40 PM   #12
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Something to consider:

I bolted my up-pipe to the turbo before installing anything. I had to. I had a prototype up-pipe with no studs, so I went to a metric fastener shop and picked up some grade 8.8 bolts for the job.

I used some heavy duty star lock washers underneath the head of the bolt, not the nut, to aid in tightening from one side (the star washer digs in and you only have to use a wrench on the nut side-it doesn't let the bolt turn on you).

Anyway, I tightened these up nicely and then sat the whole unit down in there and loosely bolted up the two-bolt flange at the collector. Oh, by the way, I unplugged the EGT sensor from the relay/solenoid/whatever it is and installed the sensor before sitting the preassembled unit down in there. It's a heck of a lot easier to get to that out of the car! Just be careful when sitting it down and pay mind to the sensor.

I used two gaskets on the two-bolt flange, because I, like Shiv, tend to believe that this would be the most likely spot for a leak.

I alternated between tightening the collector (two-bolt) flange and the downpipe flange, letting the collector be fully tightened first. If you think about it, you should be sure to get the two-bolt flange nice and tight first, since you will have a hard time "pulling" that one down to seal if it's the last one you tighten. The downpipe flange has five bolts on it and chances are good that you can do a good job using that flange to easily pull things into place.

Now, bear in mind that I do not have my car running yet, as there are a few more mods to do this coming weekend. But I do not expect any leaks. All joints look even all the way around and everything tightened up perfectly. Time will tell.

I do have experience with situations like this and I think that preassembling the turbo and up-pipe is an easy way to simplify the installation and reduce the possibility of leaks. Especially when you are doing the job by yourself, as I did, this makes it much easier.
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Old 01-15-2002, 04:58 PM   #13
WRBLUEWAGON
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Thanks for your insight,

I'm going to do what shiv told me and see if it could be fixed.

Eric
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Old 01-15-2002, 05:02 PM   #14
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I'd grind the studs down a bit. It won't hurt and it might fix it.

PEACE

OUT
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Old 01-15-2002, 05:26 PM   #15
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Oh, I thought you already knew there was a leak at the turbo to uppipe. If you aren't sure, then I concur for sure that the leak is at the bottom of the uppipe. You should tighten from the motor back. If you did not, I would think this is where you problem is.

I would suggest a quick try, which can't hurt. Loosen the uppipe to manifold bolts, then loosen the bolts to the heads and the ones to the crossover pipe. Tighten the uppipe to manifold since this is only two bolts, then tighten down the bolts to the head (which is three) and finally the crossover bolts. This should only take you about 15 minutes so it is worth a try.

If it doesn't help, then you are probably going to have to do it all over (loosening the bolts to the turbo).

Think about it. The turbo is trying to pull the uppipe to the turbo and the manifold is pulled to the heads. The uppipe to manifold is in the middle and only has two bolts. This is where any gap will probably show up.

Greg
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Old 01-15-2002, 05:46 PM   #16
WRBLUEWAGON
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Greg,

Thank you very much I will try that tonight if I have time.

My Best
Eric
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Old 01-16-2002, 10:29 AM   #17
WRBLUEWAGON
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Talking

Good news,

I found it and fixed the leak.

I reinstalled the uppipe and used two gaskets where the uppipe and header meet. I first bolted the uppipe to header and then y pipe to header and then header to the motor. This is very esay to do and made everything fit in nice and esay. I did take the whole uppipe off. It took me Two hours to take the uppipe off and put it back on. When I went for a drive it was still making that noise. So I looked down stream of the downpipe and found that one of the flinges was not fully tight. So I took it off and reinstalled it and every thing is great. Car feels really good and nice and quiet. The Power comes on nice and smooth all the way to redline with full boost.

I just wanted to thank everyone for the help and the good ideas.

Thanks Again
Eric
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Old 01-16-2002, 12:49 PM   #18
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Old 01-16-2002, 01:30 PM   #19
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Quote:
Originally posted by WRBLUEWAGON
Good news,

I found it and fixed the leak.

I reinstalled the uppipe and used two gaskets where the uppipe and header meet. I first bolted the uppipe to header and then y pipe to header and then header to the motor. This is very esay to do and made everything fit in nice and esay. I did take the whole uppipe off. It took me Two hours to take the uppipe off and put it back on. When I went for a drive it was still making that noise. So I looked down stream of the downpipe and found that one of the flinges was not fully tight. So I took it off and reinstalled it and every thing is great. Car feels really good and nice and quiet. The Power comes on nice and smooth all the way to redline with full boost.

I just wanted to thank everyone for the help and the good ideas.

Thanks Again
Eric
so, where was the leaking comming from? I seems like it was from the turbo/up seal, but in that case, you didn't need double gaskets up stream.
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Old 01-16-2002, 01:43 PM   #20
WRBLUEWAGON
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Sorry,

It was leaking from the Downpipe in between the cats.

Eric
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Old 01-16-2002, 02:16 PM   #21
djerickd
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Quote:
Originally posted by WRBLUEWAGON
Sorry,

It was leaking from the Downpipe in between the cats.

Eric
Mine is leaking there too, but I'll wait till I get a full turbo-back syetem to deal with it.
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