Pressure-Test Result - Leak at Fuel Injector. Advice? - 3000GT/Stealth International Message Center
3000GT/Stealth International 3000GT/Stealth International
 

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   3000GT/Stealth International Message Center > Automotive Discussions > General

3SI.org is the premier Mitsubishi 3000GT Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 07-13-2008, 08:17 PM   #1 (permalink)
Forum Member
 
smashbar's Avatar
 
Join Date: Nov 2005
smashbar is an unknown quantity at this point
Feedback Score: 4 reviews
Default Pressure-Test Result - Leak at Fuel Injector. Advice?

Ok, so with the help of a couple local 3Si members, I was able to do a leak test of my TT's system. We found that everything was sound, except for some obvious air coming out of where the fuel injectors connect to the lower plenum (the front 3 at least). Are there just some o-rings that need to be changed there? Do I need to remove the upper intake plenum to get them out? Can I just get these O-rings at an autoparts store?

Also, what would be the symptoms of this type of leaky injector condition?

Thanks!
smashbar is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 07-13-2008, 11:58 PM   #2 (permalink)
I'm a dude.
 
Toni's Avatar
 
Join Date: Jul 2000
Location: N/A
Drives: 15geed 92 rt tt
Toni Level 2Toni Level 2Toni Level 2Toni Level 2Toni Level 2
Feedback Score: 90 reviews
Default Re: Pressure-Test Result - Leak at Fuel Injector. Advice?

Quote:
Originally Posted by smashbar View Post
Ok, so with the help of a couple local 3Si members, I was able to do a leak test of my TT's system. We found that everything was sound, except for some obvious air coming out of where the fuel injectors connect to the lower plenum (the front 3 at least). Are there just some o-rings that need to be changed there? Do I need to remove the upper intake plenum to get them out? Can I just get these O-rings at an autoparts store?

Also, what would be the symptoms of this type of leaky injector condition?

Thanks!
You need (6) MD087060 Injector Insulators. If the front three are leaking chances are the rears are also. You will need to pull the plenum and fuel rail. You should be able to get away with pulling the rail intact so you wont have to deal with fuel. I couldn't find these for a fair price locally so I just ordered them from a mitsu dealer. (mitsupartsdirect.com)

Symptoms? The car will idle badly if at all. When I rebuilt my engine I forgot to get new ones and when I put it back together I couldn't get the car to idle they leaked so bad.

oh also make sure you have the "sheet" (rubber spacer) on the other side of the injector(fuel rail side), if any of these are missing the injector won't push down on the insulator hard enough.

-Antoni
__________________
If my links/photos don't work replace penguinhosting.net/~bigmac with primaryboost.com
95 Stealth RT Part Out Uncut 3000GT keys for sale! Various colors!
Toni is offline   Reply With Quote Quick reply to this message
Old 07-14-2008, 07:23 AM   #3 (permalink)
Forum Member
 
smashbar's Avatar
 
Join Date: Nov 2005
smashbar is an unknown quantity at this point
Feedback Score: 4 reviews
Default Re: Pressure-Test Result - Leak at Fuel Injector. Advice?

Hey thanks Antoni. I'll look into those parts you described. Anyone else have any experience with this type of issue?
smashbar is offline   Reply With Quote Quick reply to this message
Old 07-14-2008, 10:16 AM   #4 (permalink)
the 3S whisperer
 
gltasn's Avatar
 
Join Date: Apr 2008
Location: alaska
Drives: 95 mitz 3kgt vr4
gltasn is an unknown quantity at this point
Feedback Score: 13 reviews
Default Re: Pressure-Test Result - Leak at Fuel Injector. Advice?

step by step instructions with pics and torque specs at stealth316.com j sin
__________________
"If I was as slow as you, they'ed bury me!" terry canfield(dad)
gltasn is offline   Reply With Quote Quick reply to this message
Old 07-14-2008, 11:39 AM   #5 (permalink)
Forum Member
 
smashbar's Avatar
 
Join Date: Nov 2005
smashbar is an unknown quantity at this point
Feedback Score: 4 reviews
Default Re: Pressure-Test Result - Leak at Fuel Injector. Advice?

Yep- Seen it. I was just wondering what type of experiences people have had with this type of injector leak and what they did to remedy the situation. I'd like to get all the input I can before tearing into this project. Thanks again for the responses
smashbar is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  3000GT/Stealth International Message Center > Automotive Discussions > General

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the 3000GT/Stealth International Message Center forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Free email addresses do not work(yahoo, hotmail, gmail,...)
We are currently being blocked by AOL so any AOL based address may not work(aol.com, aim.com, netscape.net, cs.com)
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 02:20 PM.




Garage Plus vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.3.2