Welcome to the North American Subaru Impreza Owners Club Thursday July 24, 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 > Factory 2.0L Turbo 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 07-14-2006, 10:14 AM   #1
ScoobySnacker
Scooby Specialist
 
Member#: 105303
Join Date: Jan 2006
Chapter/Region: MWSOC
Location: Royal Oak, MI
Vehicle:
2003 WRX
White

Default Tell me how to do a boost leak test? PLEASE!!

I have posted this about a week ago, with no good answers. How do i do a boost leak test? i have the home-made boost leak tester. I clamp it to the inlet of the turbo, plug the 4 ports on the inlet and try to pressurize it. IT WILL NOT WORK!! The system wont even get 1psi in it. What am i doing wrong? PLEASE HELP ME!
* Registered users of the site do not see these ads.
ScoobySnacker is offline   Reply With Quote
Old 07-14-2006, 10:19 AM   #2
benw
Scooby Specialist
 
Member#: 103320
Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

Default

did you plug the lines coming off the turbo inlet?
benw is offline   Reply With Quote
Old 07-14-2006, 10:44 AM   #3
2ndGearFling
Scooby Specialist
 
Member#: 64466
Join Date: Jun 2004
Chapter/Region: MWSOC
Location: Grand Rapids, MI
Vehicle:
05, STI on green

Default

Research....it takes quite a while for the system to pressurize. Just make sure you have everything plugged.
2ndGearFling is offline   Reply With Quote
Old 07-14-2006, 12:23 PM   #4
ScoobySnacker
Scooby Specialist
 
Member#: 105303
Join Date: Jan 2006
Chapter/Region: MWSOC
Location: Royal Oak, MI
Vehicle:
2003 WRX
White

Default

Quote:
Originally Posted by benw
did you plug the lines coming off the turbo inlet?
Yes, i have plugged them..There are 4, right? I have researched to no end..I thought that i had done something wrong, but i guess i need to put more pressure in it.
ScoobySnacker is offline   Reply With Quote
Old 07-14-2006, 12:45 PM   #5
Paulie V
Scooby Specialist
 
Member#: 10260
Join Date: Sep 2001
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2002 WRX Sedan
PSM- Cobb Stage 2- again!

Default

Like I said in your other post, start with a an air tank ALREADY PRESSURIZED (15-20 psi- don't over do it), discharge it directly into your intake tract and listen for leaks. It'll take forever to hook up a compressor and just run it. And if you do have a leak, it probably won't pressurize at all and the compressor will be too noisy to hear anything anyway.

And you don't need to disconnect and plug up the lines coming off the intake, as long as you don't put too much pressure in there.
Paulie V is offline   Reply With Quote
Old 07-14-2006, 01:16 PM   #6
ScoobySnacker
Scooby Specialist
 
Member#: 105303
Join Date: Jan 2006
Chapter/Region: MWSOC
Location: Royal Oak, MI
Vehicle:
2003 WRX
White

Default

Quote:
Originally Posted by Paulie V
Like I said in your other post, start with a an air tank ALREADY PRESSURIZED (15-20 psi- don't over do it), discharge it directly into your intake tract and listen for leaks. It'll take forever to hook up a compressor and just run it. And if you do have a leak, it probably won't pressurize at all and the compressor will be too noisy to hear anything anyway.

And you don't need to disconnect and plug up the lines coming off the intake, as long as you don't put too much pressure in there.
I have been starting with a pressurized tank. I took it off the "AUTO" mode so it will not turn on while pressurizing. I pump about 30sec of air in it and still it did not put pressure in the system, and no sign of leaks. If i dont plug the lines on the inlet, wont i be pressurzing the crankcase? Thanks for the help.
ScoobySnacker is offline   Reply With Quote
Old 07-14-2006, 11:14 PM   #7
Paulie V
Scooby Specialist
 
Member#: 10260
Join Date: Sep 2001
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2002 WRX Sedan
PSM- Cobb Stage 2- again!

Default

I'm confused. Where are you reading the pressure that you're saying you're not pressurizing the system? What are you pressurizing your air tank up to? If you've got 15 psi or so in the tank, and you hook the discharge hose up to your valve stem in your leak tester, then you'll be pressurzing your intake system. Are you attaching it to the tester and immediately see your pressure gauge drop quickly? Are you sure your leak tester isn't leaking? At 15-20 psi, you should definately be able to hear any air leaks.

And 15-20 psi shouldn't hurt your crankcase, just don't go crazy. It would be safer to block off the ports, but you won't be seeing if you have any leaks in the pcv system. Are you trying to test an intake leak or a boost leak? If you just suspect a boost leak, you could eliminate the whole pre-turbo intake tract and just test after the turbo.
Paulie V is offline   Reply With Quote
Old 07-14-2006, 11:51 PM   #8
big geek
Scooby Newbie
 
Member#: 76732
Join Date: Dec 2004
Chapter/Region: MWSOC
Default

Sea-Foam works well to look for an exhaust leak. Just found my uppipe leak after a little sea-foam.
big geek is offline   Reply With Quote
Old 07-15-2006, 12:00 AM   #9
Smoby
Scooby Specialist
 
Member#: 97642
Join Date: Oct 2005
Chapter/Region: SWIC
Location: Phoenix, AZ
Vehicle:
2002 Wrx Sedan
MBP

Default

Post a pic of your leak tester and see if that is your problem.
Smoby 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
PLEASE tell me how to spell absinenth captaind Off-Topic 84 11-28-2008 08:26 PM
wii friends setup, AKA tell me how to do this so i dont have to read the manual [27] Off-Topic 5 03-04-2007 04:51 PM
anybody tell me how to clear limp mode please? (on the car) JC_595 Mid West Subaru Owners Club Forum -- MWSOC 6 09-19-2006 05:20 PM
i love when non-programmers tell me how to do my job. kbcr3 Off-Topic 32 08-11-2005 04:07 PM
Can someone PLEASE tell me how to post pictures on here? JasonRan General Forum Archive 6 06-08-2000 08:36 AM


All times are GMT -4. The time now is 08:12 AM.


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.