Welcome to the North American Subaru Impreza Owners Club Sunday July 21, 2019
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo)

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 05-24-2019, 08:04 PM   #1
Jmann462
Scooby Newbie
 
Member#: 466915
Join Date: May 2017
Location: St. Louis
Vehicle:
2003 Impreza Wrx STI
Black

Default Cam sensors at rear of Heads Leaking oil

Recently purchased 03 STI with JDM 205 w/avcs delete 81k miles. I purchased knowing that there was a minor oil leak issue at the rear camshaft sensors at the back of the heads, it pools up a bit and burns, smoking and making me and my car look terrible haha. I have now become completely stumped on how to resolve the issue. I purchased the IAG camsensor delete plugs and removed the sensors and installed the plugs, still have the issue(not as bad). I was told by IAG that they were made for the USDM not the JDM and the diameter of the hole is slightly larger than that of the USDM. Anyways. the oil spits out, its not pouring by any means. I am just sick of it and I have googled hours to no avail. I was hoping someone else has ran into this issue and could offer some feedback or a resolution. I would love this fixed so i can finally tune it and have some real fun. Thanks in advance.
* Registered users of the site do not see these ads.
Jmann462 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 06-01-2019, 12:55 PM   #2
Jmann462
Scooby Newbie
 
Member#: 466915
Join Date: May 2017
Location: St. Louis
Vehicle:
2003 Impreza Wrx STI
Black

Default Help!!

Does anyone have insight on this issue? Any and all help is much appreciated. TIA
Jmann462 is offline   Reply With Quote
Old 06-01-2019, 09:48 PM   #3
supermarkus
Scooby Guru
 
Member#: 6971
Join Date: May 2001
Location: Edmonds, Washington, USA
Vehicle:
2008 WRX STi
SSM

Default

You can check McMaster Carr and see if you can upsize the o-ring and rtv the bejeezus out of the plug. Make sure all sealing surfaces are free of oil before applying your silicone.
supermarkus is offline   Reply With Quote
Old 06-19-2019, 08:20 PM   #4
Jmann462
Scooby Newbie
 
Member#: 466915
Join Date: May 2017
Location: St. Louis
Vehicle:
2003 Impreza Wrx STI
Black

Default

Quote:
Originally Posted by supermarkus View Post
You can check McMaster Carr and see if you can upsize the o-ring and rtv the bejeezus out of the plug. Make sure all sealing surfaces are free of oil before applying your silicone.


Thanks for the response, sorry for the delayed one haha, life has been hectic. What you just said was exactly what i was going to do i was just hoping someone else had experienced this before and had a less barbaric means of fixing the silly issue. Thanks yo!
Jmann462 is offline   Reply With Quote
Old 06-20-2019, 08:54 AM   #5
Bansheeboy11
Scooby Specialist
 
Member#: 182415
Join Date: Jun 2008
Chapter/Region: Tri-State
Location: New York
Vehicle:
1999 RS
Aspen White

Default

Dont put RTV on the plug, find an oring that properly seals it and it wont leak. Make sure you buy something that can handle hot oil, and lightly coat it with grease when you put it on the plug and back in the head.
Bansheeboy11 is offline   Reply With Quote
Old 06-28-2019, 03:19 PM   #6
Jmann462
Scooby Newbie
 
Member#: 466915
Join Date: May 2017
Location: St. Louis
Vehicle:
2003 Impreza Wrx STI
Black

Default

Quote:
Originally Posted by Bansheeboy11 View Post
Dont put RTV on the plug, find an oring that properly seals it and it wont leak. Make sure you buy something that can handle hot oil, and lightly coat it with grease when you put it on the plug and back in the head.

Man that is what i have already attempted doing. The i need the same diameter with a thicker wall. I have had 0 luck in finding that because diameter goes up with the wall then the o-ring it too big to fit into its slot on the plug. I need to get a custom O-ring. Ill figure something out. I was just hoping i wasn't the only person experiencing this ridiculous issue.
Jmann462 is offline   Reply With Quote
Old 06-28-2019, 03:54 PM   #7
ascendr
Scooby Newbie
 
Member#: 462136
Join Date: Jan 2017
Location: NY Tristate Area
Vehicle:
02 Bugeye

Default

You could bring the delete plugs to a machine shop and have a groove turned in to accept the o-ring of your choice?
ascendr is offline   Reply With Quote
Old 06-28-2019, 07:05 PM   #8
ascendr
Scooby Newbie
 
Member#: 462136
Join Date: Jan 2017
Location: NY Tristate Area
Vehicle:
02 Bugeye

Default

I happen to have a set of JDM single AVCS heads and the rear crank sensors on my bench so I took a few measurements hopefully it's helpful.

The o-ring on the cam sensor looks to be 18.35mm while the hole in the block looks to 18.27mm


ascendr 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 02:24 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.