Welcome to the North American Subaru Impreza Owners Club Friday April 18, 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 06-07-2013, 08:41 PM   #1
wotrex
Scooby Newbie
 
Member#: 330266
Join Date: Aug 2012
Vehicle:
2002 WRX
Blue

Default injector install help

im in the middle of installing sti injectors and i have a few concerns.
1. does the lower (bigger) o-ring on the top of the injectors seat into the fuel rail? because the top o-ring seated in fine.
2. is there supposed to be any play in the injector (twisty) after install?
Thanks for any help!
* Registered users of the site do not see these ads.
wotrex is offline   Reply With Quote
Old 06-07-2013, 09:05 PM   #2
Concillian
Scooby Guru
 
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
Vehicle:
2002 WRX Sedan
Midnight Black

Default

The lower o-ring (biggest) should fit snugly into the manifold
the upper o-ring (smallest) should fit snugly into the rail

The middle "cushion" that mounts near the upper o-ring just takes up space. They aren't even strictly necessary and things should work fine without them. So they aren't critical at all.

The injector should twist freely on axis. If you're using Denso injectors, the connector has a "slot" that fits into a tab on the rails that allows very little twist after you plug them in, but they should still have free play.. At least on some model years. I did an 08 last week that was that way, I don't recall if the 02-05 is that way or not. In either event, they should easily twist back and forth 90+ degrees before you put the plugs into them.
Concillian is offline   Reply With Quote
Old 06-08-2013, 01:31 AM   #3
blubug_768
Scooby Newbie
 
Member#: 324962
Join Date: Jul 2012
Chapter/Region: BAIC
Location: Morgan Hill CA.
Vehicle:
02 WRX

Default

ya mine even move up and down a little, no leaks.
blubug_768 is offline   Reply With Quote
Old 06-08-2013, 11:24 AM   #4
WhatsThatNoize
Scooby Newbie
 
Member#: 351605
Join Date: Mar 2013
Chapter/Region: RMIC
Location: Bozeman/Seattle
Vehicle:
2002 WRX
WRB

Default

Recently did an injector install here. The middle cushion isn't really necessary but I would roll with it anyways if you have it. It doesn't make install harder or anything.

You should be able to turn the injectors even after install. They rotate pretty freely, so don't panic about that.
WhatsThatNoize is offline   Reply With Quote
Old 12-01-2013, 04:48 PM   #5
danger1138
Scooby Specialist
 
Member#: 279525
Join Date: Apr 2011
Location: QUEENS NY
Vehicle:
04 rex luger!

Default

Is that top o-ring (the one that creates the seal for injector to fuel rail) supposed to fit tight on the injector or is it supposed to be a little loose?

Im having an issue with that o ring. I have a harbor freight o- ring kit, and ive tried about three different times with similar sized o-rings, but they always leak. Im in a pinch so i have to shell out unnecessary amounts of cash tomorrow at the dealership in order to get the correct o-ring kit for the injectors. Just curious about that top o ring though.
danger1138 is offline   Reply With Quote
Old 12-01-2013, 07:53 PM   #6
Unabomber
Big Ron
Moderator
 
Member#: 18062
Join Date: Apr 2002
Chapter/Region: MAIC
Location: I can save you a ton of cash
Vehicle:
on car parts so PM
me b4 j00 buy

Default

Get off the wallet dude before you set yourself on fire. You DO NOT cheap out on fuel components unless you want to walk around on fire. You have to use high quality fuel safe O-rings, not a Harbor Freight 900 O-rings for $9 kit. For the love of Christ, lay your tools down and walk away.
Unabomber is offline   Reply With Quote
Old 12-01-2013, 08:17 PM   #7
danger1138
Scooby Specialist
 
Member#: 279525
Join Date: Apr 2011
Location: QUEENS NY
Vehicle:
04 rex luger!

Default

Got u i know i have to use viton o rings, but i was investigating what was causing my injectors to leak late saturday evening and i realized the o ring was ripped. The harbor freight kit was all i had at the time, so thats what i opted to use as a temporary fix, till monday.
danger1138 is offline   Reply With Quote
Old 12-01-2013, 08:42 PM   #8
mod maniac
NASIOC Supporter
 
Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
Vehicle:
2004 built wrx & fxt
Fullers Garage

Default

Be careful, I got a great deal on my last wrx because it had an injector leak and the engine compartment caught fire.
mod maniac is offline   Reply With Quote
Old 12-02-2013, 07:19 PM   #9
danger1138
Scooby Specialist
 
Member#: 279525
Join Date: Apr 2011
Location: QUEENS NY
Vehicle:
04 rex luger!

Default

Got one o-ring at one dealer, then drove 40 min outta my way to get the other injector o ring at another dealer. $24 total.. I installed them and all went well . No leaks.

I also left that metal bracket (gbod) that goes over the rails off. Didnt see a need to put that back on. Just connected a hose directly from driver side head breather to tmic plumbing.

Last edited by danger1138; 12-02-2013 at 09:35 PM.
danger1138 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


All times are GMT -4. The time now is 07:58 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.