Welcome to the North American Subaru Impreza Owners Club Monday September 1, 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 > Built Motor Discussion

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 10-26-2009, 08:38 AM   #1
Mechie3
Scooby Guru
 
Member#: 120152
Join Date: Jul 2006
Chapter/Region: MWSOC
Location: Indy
Default Oil Cooler O-ring

The FSM for the 06 WRX shows the cast iron piece put onto the block with a large o-ring using the smaller 21mm bolt with an o-ring before and after this bolt. I don't recall these being there when I took the engine apart, nor are they in my gasket kit. There doesn't seem to be a space for them either.

The aluminum piece has an o-ring put onto the next and this is held on with 6 or 7 smaller bolts. This looks a little different than the FSM, but what the engine I took apart has. Has anyone else assembled an 06 oil cooler assy to verify that the FSM doesn't quite match the real product in this case?
* Registered users of the site do not see these ads.
Mechie3 is offline   Reply With Quote
Old 10-26-2009, 12:20 PM   #2
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Default

Can you post some pictures of what you're trying to ask? I'm not following you.
Patrick Olsen is offline   Reply With Quote
Old 10-26-2009, 02:03 PM   #3
Mechie3
Scooby Guru
 
Member#: 120152
Join Date: Jul 2006
Chapter/Region: MWSOC
Location: Indy
Default

Will do. I forgot to post last night and don't have the FSM on hand at work.
Mechie3 is offline   Reply With Quote
Old 11-16-2009, 11:26 AM   #4
Mechie3
Scooby Guru
 
Member#: 120152
Join Date: Jul 2006
Chapter/Region: MWSOC
Location: Indy
Default

Took a while...here's the pic. It's part "H". Based on the picture, it looks like an O-ring goes on both sides of that small(er) hollow bolt, part "B". My cooler has an O-ring groove on part "C" that the lower "H" can fit onto. This seals against the inside bore of part "A". If I put on the upper "H" o-ring, it will be squished between the bolt head and the counterbore of "A". There is no groove to hold it.

I don't recall this part being on it when I took it apart, but want to double check. If the intent is to seal the inner chambers of C and A, then I have done that with the single O-ring as the two parts nest inside each other. I've found a few other places were the FSM for the 06 is a little bit different than what I've seen in reality.

Mechie3 is offline   Reply With Quote
Old 11-16-2009, 01:13 PM   #5
JRach
Scooby Specialist
 
Member#: 78075
Join Date: Dec 2004
Chapter/Region: NWIC
Location: North Seattle, WA
Vehicle:
98' SF5 STI
93' GF8 (rally)

Default

For 06' the wrx changed the design of the oil cooler. (the picture you posted above is the 06/07 wrx design)

C is connected to A with a bunch of (i think 6) little bolts.
However, when removing the main oil cooler (D) from C/A, it's held into place via (E) which threads into (C). C is simply a sandwich plate that angles the oil cooler a little bit.
The 06' WRX oil cooler IS different than the 06' STI oil cooler (the STI is similar to the 02-05' wrx oil cooler, as it's one piece design and comes straight down from the block, (rather than angled via the angles sandwich plate).

I didn't use the FSM, but if I had to guess it may be showing the sti version of the oil cooler.

If you don't remember it being like that when you removed it, maybe a previous owner of the car changed it to the other style. As that's what I had to do on a 06' wrx when installing equal length headers, because the angle it sits originally blocks the headers.
JRach is offline   Reply With Quote
Old 11-16-2009, 01:58 PM   #6
Mechie3
Scooby Guru
 
Member#: 120152
Join Date: Jul 2006
Chapter/Region: MWSOC
Location: Indy
Default

The pic is from the FSM.

I'm the only owner of the car.

I'll post up pics tonight or tomorrow of the spare assembly I have. I have all the parts shown in the pic, and it all makes sense, except for there being two "H" o-rings.
Mechie3 is offline   Reply With Quote
Old 11-16-2009, 03:47 PM   #7
Mechie3
Scooby Guru
 
Member#: 120152
Join Date: Jul 2006
Chapter/Region: MWSOC
Location: Indy
Default

Here's what I have (from older pics I have):

Part "A" engine side, O-ring "G", Part "D" O-ring "G"


Part "A" bottom side and a mystery o-ring. I know for a fact the blue o-ring goes there. In the FSM diagram it would be upper o-ring H, but it doesn't match the other o-ring H. There's no other place for it. All I can think, is that they changed the design, or have a mismatched diagram. There are still 2 o-rings that seal the inner chamber from outer, and the outer chamber from outside.


Part "C", lower o-ring "H". This slips over the neck in the middle of "C" and squeezes into the bore on the bottom side of part "A"


I think everything is good, just want final confirmation. (I'm paranoid after losing more than a couple engines).
Mechie3 is offline   Reply With Quote
Old 11-16-2009, 03:50 PM   #8
Agile Auto
Former Vendor
 
Member#: 91335
Join Date: Jul 2005
Chapter/Region: MAIC
Location: Fallston, MD
Default

Looks good to me

Artie
Agile Auto is offline   Reply With Quote
Old 01-22-2013, 07:02 PM   #9
eagle98ak
Scooby Newbie
 
Member#: 49526
Join Date: Nov 2003
Chapter/Region: TXIC
Location: Abilene, TX
Vehicle:
2006 20GXTR 6spd Wgn
SGM

Default

Anybody know the part number for the non angled STI version of part C? I can't seem to be able to find it. :-(
eagle98ak is offline   Reply With Quote
Old 10-13-2013, 01:54 PM   #10
Volatle
Scooby Newbie
 
Member#: 194515
Join Date: Nov 2008
Chapter/Region: South East
Location: Farmington, MN
Default

Where is the diagram on subarugenuineparts.com for the oil-cooler assembly? I've looked under engine and cooling and have searched for it.
Volatle is offline   Reply With Quote
Old 01-15-2014, 12:51 AM   #11
Konathebarbarian
Scooby Newbie
 
Member#: 370557
Join Date: Oct 2013
Chapter/Region: NWIC
Location: Seattle
Vehicle:
2006 WRX wagon
OBP

Default quick tip

So this is a bit of a thread bump but not as bad as the ones you occasionally see that are > 8 years old

There are a couple other threads on NASIOC about this oil cooler gasket, but this one had a nice diagram and some other pertinent info so I figured I would share a tip for those looking to replace the gasket. And the tip is...you may not even have to replace it!

Instead of replacing it, what I think you should do first is simply tighten the large bolt that holds the assembly to the block a little bit and see if that solves the issue. You will need a 24mm deep well socket in order to do this job. Clean the area well with some engine cleaner and monitor the area for a couple days after you tighten the bolt a bit and see if you are still getting oil to appear.

If you do see oil, well go ahead and replace the gasket and get angry at me for even suggesting this incredibly stupid idea.

My theory is that it loosens over time because during each oil change when you remove the oil filter, you also ever so slightly loosen the bolt as well, giving oil a chance to work its way out.

My 06 wrx had a the signs that the oil cooler gasket needed to be replaced so I went ahead and replaced it. When I inspected the orange gasket I suspected to find a small tear or something where oil was getting through but I did not. In fact it looked brand new! I wish I would have just tightened the bolt first and see where that got me and go from there.

Anyway, hope this helps someone in the future.
Konathebarbarian is online now   Reply With Quote
Old 06-24-2014, 12:37 AM   #12
Miatamaniac92
Scooby Newbie
 
Member#: 62392
Join Date: May 2004
Location: Austin, TX
Vehicle:
05 Subaru
STI - Stock

Default

I have this issue and I'm going to try what Konathebarbarian suggests at the next oil change.

However, finally tracked down the part number for the oil cooler filter o-ring gasket:
21370ka00


http://www.subarupartsforyou.com/p/21370KA001-10566


http://www.subarupartsdepartment.com...?siteid=215189
Miatamaniac92 is offline   Reply With Quote
Old 06-24-2014, 07:08 AM   #13
Justin V
Scooby Specialist
 
Member#: 98747
Join Date: Oct 2005
Chapter/Region: South East
Location: GA
Vehicle:
07 WRX
WRB

Default

the 06-07 WRX had a different heat exchanger setup than the STI's

no iron plate if I recall.
Justin V is online now   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
Sti pistons, ring set, rods, oil cooler gabosub Private 'Wanted' Classifieds 6 10-06-2009 08:35 AM
STI parts: pistons, rods, oil cooler, oil pump, ring set, ... gabosub Private 'Wanted' Classifieds 3 10-03-2009 04:53 PM
Oil Cooler "O" ring gasket install question? aveera Service & Maintenance 0 07-02-2008 08:24 PM
Where are my oil cooler and trans cooler located at? Hit Man X Factory 2.0L Turbo Powertrain 3 10-28-2002 09:40 AM
spark plugs, oil coolers, transmission coolers, upgraded radiator, who has them? ChristophWRX Factory 2.0L Turbo Powertrain 6 06-04-2002 12:48 AM


All times are GMT -4. The time now is 11:09 PM.


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.