-
Grand Future Air Dried Beef Dog Food

Carnivore Diet for Dogs

Air Dried Dog Food | Real Beef
Go Back   Automotive Forums Car Chat > Mitsubishi > Eclipse/Talon/Laser > Off-Topic
Register FAQ Community
Off-Topic Talk about anything other than cars.
Reply Show Printable Version Show Printable Version | Subscription Subscribe to this Thread
 
Thread Tools
  #1  
Old 10-09-2005, 06:01 PM
99eclipsegst 99eclipsegst is offline
AF Regular
 
Join Date: Aug 2004
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
proper way to test for boost leaks

Today, as I was checking for boost leaks I notice I can't build more than 8 psi. I listen for leaking air and i notice air coming out of the hose that goes from the valve cover to the intake pipe. Do i need to cap this hose and try again?
__________________
1999 Eclipse GST

Mod List: T-25, greddy boost controller, k&N intake, Apex'i Exhaust, Boost Gauge, Greddy BOV, Greddy IC Piping, Dump Tube Mod, Symborski Shifter Kit, B&M Short Throw Shifter, Turbo Timer, and Apex'i DP.

Future Mods: Evo III with supporting mods in 2-3 months .


[IMG][/IMG][IMG][img]
Reply With Quote
  #2  
Old 10-09-2005, 07:17 PM
blk_srt's Avatar
blk_srt blk_srt is offline
AF Fanatic
 
Join Date: Oct 2004
Posts: 4,318
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to blk_srt Send a message via MSN to blk_srt
Re: proper way to test for boost leaks

Quote:
Originally Posted by 99eclipsegst
Today, as I was checking for boost leaks I notice I can't build more than 8 psi. I listen for leaking air and i notice air coming out of the hose that goes from the valve cover to the intake pipe. Do i need to cap this hose and try again?
That hose is your pvc. Is the air leaking from the valve cover or the intake. i think if you are correctly testing its coming from your valve cover. anyway if its coming from your valve cover the only reason air would be coming out of that hose is from blowby and if your blowby is that bad that you can only hold 8psi it might be time to invest in a new set of rings
__________________

2004 Flame Red SRT-4
|Audiobahn 1200Q|Rockford 602s|Jensen flip out dvd|
Mods:
Reply With Quote
  #3  
Old 10-09-2005, 07:31 PM
kjewer1 kjewer1 is offline
AF - Advisor
 
Join Date: Jun 2003
Posts: 6,342
Thanks: 0
Thanked 2 Times in 2 Posts
Re: proper way to test for boost leaks

Thats pefectly normal. If its the PCV valve though I would replace it. You'll always get some air going by the rings. Don't forget there are gaps at the ends, there is no oil on them, and they dont seal well when not moving, add to that the restrictive nature of the leak tester (shraeder valve)... To limit you to 8 psi though, there are other leaks. Its not uncommon for hte leak to make no noise at suck low flow levels, so I like to use a spray bottle with soapy water to check all of the couplers, hoses, pipes, injector seals, etc.
__________________
Kevin Jewer
RWD Talon - 7.92 at 180
Mightymax - 10.7 at 125
Reply With Quote
  #4  
Old 10-09-2005, 08:21 PM
99eclipsegst 99eclipsegst is offline
AF Regular
Thread starter
 
Join Date: Aug 2004
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
Re: proper way to test for boost leaks

I just retested a while ago. One of the couplers was badly cracked and was leaking which is fixed now. Now im able to hold 12 psi. The hose that is leaking from the valve cover is the hose on the left side of the valve cover.
__________________
1999 Eclipse GST

Mod List: T-25, greddy boost controller, k&N intake, Apex'i Exhaust, Boost Gauge, Greddy BOV, Greddy IC Piping, Dump Tube Mod, Symborski Shifter Kit, B&M Short Throw Shifter, Turbo Timer, and Apex'i DP.

Future Mods: Evo III with supporting mods in 2-3 months .


[IMG][/IMG][IMG][img]
Reply With Quote
  #5  
Old 10-10-2005, 02:34 AM
crunchymilk55's Avatar
crunchymilk55 crunchymilk55 is offline
AF Enthusiast
 
Join Date: Mar 2002
Posts: 2,010
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to crunchymilk55
Re: proper way to test for boost leaks

Are you using a real compressor? Using a bicycle pump will not work effectively. If you can't build pressure past 12psi, then start at the throttle body and test there. I bet your seals are leaking (mine are). Then go back one coupler at a time until you fix all leaks in each coupler or BOV flange or whatever it may be. Go backwards one step at a time making sure you can hold 20psi and then you'll find the leaks. It's time consuming, but worth it.
__________________
now - 2000 civic
soon - 2002 is300
Reply With Quote
  #6  
Old 10-10-2005, 08:44 PM
99eclipsegst 99eclipsegst is offline
AF Regular
Thread starter
 
Join Date: Aug 2004
Posts: 51
Thanks: 0
Thanked 0 Times in 0 Posts
Re: proper way to test for boost leaks

Im actually using an electric pump.

Do our oil caps have some sort of gasket? Mine doesn't and air is leaking from the cap. Is it time to buy a new oil cap?

Thanxs for the replies.
__________________
1999 Eclipse GST

Mod List: T-25, greddy boost controller, k&N intake, Apex'i Exhaust, Boost Gauge, Greddy BOV, Greddy IC Piping, Dump Tube Mod, Symborski Shifter Kit, B&M Short Throw Shifter, Turbo Timer, and Apex'i DP.

Future Mods: Evo III with supporting mods in 2-3 months .


[IMG][/IMG][IMG][img]
Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums Car Chat > Mitsubishi > Eclipse/Talon/Laser > Off-Topic


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



All times are GMT -5. The time now is 04:11 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts