Welcome to the North American Subaru Impreza Owners Club Saturday August 30, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 10-13-2010, 12:47 AM   #1
Subyroo2.5
Scooby Specialist
 
Member#: 168129
Join Date: Jan 2008
Chapter/Region: SCIC
Location: High Desert
Vehicle:
2013 WRX
WRBP

Default Exhuast leak problems

So I have a 2.5" prodrive exhaust from a '02 WRX. The muffler guy cut the flange off my stock exhaust and welded it to this one so it would bolt up. I have had to replace the exhaust donut twice now. Both times it almost falls out when I unbolt the midpipe and cat back flange. Its all rusted. So I popped for the OEM donut today. It looks like a lot better construction. I Bolted it all back up and still had a leak. So i took the spring and bolts off and used regular bolts to try to get a tighter fit. 3 broken bolts later and I still had a small exhaust leak. I realized its actually coming from a pin hole leak behind the midpipe side flange.

Can I use some sort of high temp RTV to seal this or do I need it re-welded?

(thinking before I replaced the donut) Would a pretty big exhaust leak at that flange cause any kind of drive-ability or performance issues?

Thank you.
* Registered users of the site do not see these ads.
Subyroo2.5 is offline   Reply With Quote
Old 10-13-2010, 10:12 AM   #2
suex
Scooby Newbie
 
Member#: 243393
Join Date: Apr 2010
Chapter/Region: NESIC
Location: Foresdale
Vehicle:
o6 impreza rs
silver

Default

Take it back to the guy who did it...he shouldn't charge you to fix his mistake, it should only take about 15mins..
suex is offline   Reply With Quote
Old 10-13-2010, 06:54 PM   #3
GrimmSpeed
NASIOC Vendor
 
Member#: 136396
Join Date: Jan 2007
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
2013 BRZ
SWP

Default

Quote:
Originally Posted by suex View Post
Take it back to the guy who did it...he shouldn't charge you to fix his mistake, it should only take about 15mins..
This! Yes you probably could use a sort of gasket maker compund but with so much road debris, grime, heat, stuff, there is no way it would last very long. He should fix it for free!

Will
GrimmSpeed is offline   Reply With Quote
Old 10-13-2010, 07:11 PM   #4
gingertooth
Scooby Guru
 
Member#: 82242
Join Date: Mar 2005
Chapter/Region: Tri-State
Location: west milford, NJ
Vehicle:
2005 wrx wagon
wooh wooh!!!!!

Default

he should def fix this. idiot never should of used your oem midpipe flange in the first place. But make him fix it. if not. JB metal weld will seal it right up. hardware store carries it.
gingertooth is offline   Reply With Quote
Old 10-13-2010, 07:20 PM   #5
Jessekrs123
Scooby Specialist
 
Member#: 236927
Join Date: Jan 2010
Chapter/Region: NESIC
Location: Oakville CT
Vehicle:
1993 Legacy Sedan
1984 BRAT

Default

There could be a problem if your car is equipped with a rear o2 sensor, but don't worry about it too much. I've ran older Subarus with just headers and nothing else and didn't have a problem. I don't know if it would be different because your's is newer, I'm talking about running just headers with some old L series that I used to just toss around the yard.
Jessekrs123 is offline   Reply With Quote
Old 10-13-2010, 09:55 PM   #6
RaceFaceXC
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

Quote:
Originally Posted by Jessekrs123 View Post
There could be a problem if your car is equipped with a rear o2 sensor, but don't worry about it too much. I've ran older Subarus with just headers and nothing else and didn't have a problem. I don't know if it would be different because your's is newer, I'm talking about running just headers with some old L series that I used to just toss around the yard.
Running without a rear 02, or even with a rear 02 and an exhaust leak is not ideal on an '07. bad rear 02 readings will cause some fueling issues on 06+ model years.


Quote:
Originally Posted by gingertooth View Post
he should def fix this. idiot never should of used your oem midpipe flange in the first place. But make him fix it. if not. JB metal weld will seal it right up. hardware store carries it.
JB will last about 0.238747652 seconds once the cat reaches operating temps. The only way to fix this for more than a cpl mins is to touch up the weld.
RaceFaceXC is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Exhuast Leak??? redhat778 Factory 2.0L Turbo Powertrain 1 03-29-2004 07:56 PM
exhuast leak? matt888111 Factory 2.0L Turbo Powertrain 0 03-01-2004 09:12 PM
Would a exhuast leak hurt the motor? Night Kid Factory 2.0L Turbo Powertrain 1 08-01-2002 11:53 PM
12.244 @ 111 with an exhuast leak! BYBYV8 Factory 2.0L Turbo Powertrain 30 05-27-2002 07:51 PM
Pre-turbo exhuast leaks diagnosed by boost at idle? mynew02 Factory 2.0L Turbo Powertrain 3 03-22-2002 05:31 PM


All times are GMT -4. The time now is 07:23 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.