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Old 01-26-2004, 08:35 PM   #1
Rocketcar
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Default Mod's caused premature gasket failure?

I was wondering if my mods could have contributed to the failure of my up-pipe gaskets. My car was/is at the dealer for brakes and they called me and told me my uppipe gaskets were toast. I have had less than expected boost for a while but hardly noticable. I maxed out at .10-.11 when I should be getting .12 on the stock gauge.
I am what I considered slightly modded as follows:
MRT turbo back, Vishnu IC hoses and Reflash.
My car has 54,000 miles.

So could theses mods contributed to the failure of the gaskets?
just wondering if I should expect this every so often or perhaps should this have been expected?

thanks
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Old 01-26-2004, 08:39 PM   #2
North Ursalia
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Depending upon how the turboback was installed, the top uppipe gasket probably should have been replaced when you did your turboback install.


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Old 01-26-2004, 10:33 PM   #3
vile
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the failure could be attributed to the install, that's for sure. how long has it been in there? did you reuse the stocker? if not, what did you go with? and how long has it been in there?
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Old 01-26-2004, 11:07 PM   #4
Rocketcar
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Irvine Subaru did the install on the turbo back. The exhaust has been in place for over 2 years. BTW it's a MRT. I don't know if they replaced gaskets, my guess is no because the car was less than 6 mos. old at the time.
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Old 01-27-2004, 09:06 AM   #5
BlackEye
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Default Wait a minute...

I could see replacing the turbo - downpipe gasket but why would you replace the top UpPipe gasket on a TBE install? You don't need to touch it. You all must be talking about some method for installation that I am unfamiliar.


Quote:
Depending upon how the turboback was installed, the top uppipe gasket probably should have been replaced when you did your turboback install.

IMHO it is theoretically possible that due to the wastegate being closed more (To build more boost) this forces more drag on the compressor wheel (to create the boost), would lend it self to making the impeller wheel harder to spin, hence more pre turbo pressure. However, I wonder though considering so much back pressure has been eliminated. The stock exhaust system would do the same type of things I just mentioned. To what degree I just don't know...
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Old 01-27-2004, 01:36 PM   #6
sonicblue
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I just did a TBE install and didn't replace the uppipe->turbo gasket (and some experienced scooby techs were helping). So, same question as above........
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Old 01-27-2004, 02:15 PM   #7
Wagon Joe
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No reason to touch the uppipe during a TBE install, and I'm sure Irvine didn't as well.

I would tell them not to worry about it. Then, install a catless uppipe this weekend. (and change the gaskets while you're at it)
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