Welcome to the North American Subaru Impreza Owners Club Saturday August 30, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
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 > Brakes, Steering & Suspension

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 07-08-2013, 07:06 PM   #251
danci1973
Scooby Newbie
 
Member#: 19018
Join Date: May 2002
Location: Maribor, Slovenia
Vehicle:
1995 Legacy Wagon
Silver

Default

After removing the two big plugs on the side I discovered two more O-rings:



And the other one:



Finally after removing the last moving part of the pump I discovered yet another large O-ring and two additional rubber seals that we probably won't get in any general O-ring shop:



As for the O-ring:



There is an oil seal on the axle just behind the pulley, but I didn't take it out so I have no measurement. I didn't see any actual bearing.

I haven't yet bought new O-rings, so I'm not going to make assumptions about the correct sizes. My plan is to take this pile of parts to a hydraulic shop and ask them nicely to find correct O-rings to seal it all up properly.


D.
* Registered users of the site do not see these ads.
danci1973 is offline   Reply With Quote
Old 07-08-2013, 09:40 PM   #252
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

Quote:
Originally Posted by danci1973 View Post
I haven't yet bought new O-rings, so I'm not going to make assumptions about the correct sizes. My plan is to take this pile of parts to a hydraulic shop and ask them nicely to find correct O-rings to seal it all up properly.
Now where's the fun in that? Just kidding. Good luck.
WRXFanDave is offline   Reply With Quote
Old 07-09-2013, 10:07 AM   #253
crispy03
Scooby Newbie
 
Member#: 187247
Join Date: Aug 2008
Location: KS
Vehicle:
06 WRX
OBP

Default

Thanks for the all the info in the thread guys. Recently started having some noise from my pump on start up and found the dreaded bubbles in the reservoir.

All I needed to get back up and running was a new o-ring on the inlet. I did have an issue with the dash 14 FEP though. After install, no amount of effort to completely get the air out of the system seemed to be working. Finally after seemingly getting most of it I decided to just run with it and see, but every time I took the wheel close to lock it would start having issues again.

Then I replaced the dash 14 with a 2.5 x 11 mm and the difference was immediate. Previously I'd worked the wheels lock to lock dozens of times trying to get the air out, but this time after just a few times I wasn't hearing air in the system. It's been running perfectly ever since. Unfortunately M-C only had the metric sizes in Buna-N.

Anyone else have issues with getting a dash 14 to seal the inlet? It's possible I made a mistake on install but the metric o-ring was definitely thicker. When I installed the dash 14 the inlet easily went back into place, but with the 2.5x11 it filled the gap well enough it was almost hard to slide the inlet back in its hole.
crispy03 is offline   Reply With Quote
Old 08-31-2013, 10:37 PM   #254
Impreza4ever
Scooby Newbie
 
Member#: 62510
Join Date: May 2004
Location: California
Vehicle:
2005 Impreza Wrx Sti
WR BLUE PEARL

Cool 05 Wrx Sti.

Quote:
Originally Posted by rlucy18 View Post
Thanks for the Tip Rambler323 Just Ordered from the O Ring Store.com

1 x 037 HNBR70 Green O rings = $1.28
1 x 021 HNBR70 Green O rings = $0.52
1 x 015 HNBR70 Green O rings = $0.32
3 x 014 HNBR70 Green O rings = $0.32
1 x 013 HNBR70 Green O rings = $0.32
1 x 136 HNBR70 Green O rings = $1.36

Plus $5 shipping
This is what i ordered and i can confirm it works perfectly for the 05 Sti. Just rebuilt my pump today and its 100% leak free.
Impreza4ever is offline   Reply With Quote
Old 09-03-2013, 07:26 AM   #255
Jeffreynn
*** Banned ***
 
Member#: 367203
Join Date: Sep 2013
Location: USA
Default

Well i use to have issues, where it would steam and cavitate. But now it just, get extremely large and difficult to drive quick. I am concerned, the real pump aspect might be bad. But i really don't know how these factors perform.
Jeffreynn is offline   Reply With Quote
Old 09-14-2013, 03:39 PM   #256
d.g.4.l
Scooby Newbie
 
Member#: 294307
Join Date: Sep 2011
Default

so im in the middle of installing my 05 steering rack into my 03 wrx and i noticed everyone saying to put atf in. my buddy has been running regular power steering fluid in his since his jdm swap over a year ago and his power steering is fine? what gives?
d.g.4.l is offline   Reply With Quote
Old 09-15-2013, 12:32 AM   #257
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

US owners manual says to put ATF in it.
If I remember correctly, the ATF holds up,to the vehicle-specific conditions better than power steering fluid (some vehicles are higher temp or pressure in the PS system than others). Don't take my word for it though.
WRXFanDave is offline   Reply With Quote
Old 09-15-2013, 08:41 AM   #258
BlueSTI4Me
Scooby Specialist
 
Member#: 34361
Join Date: Mar 2003
Chapter/Region: MWSOC
Location: MI
Vehicle:
04.7 STI
WRB

Default

Subscribed............
BlueSTI4Me is offline   Reply With Quote
Old 10-01-2013, 02:01 PM   #259
Impreza4ever
Scooby Newbie
 
Member#: 62510
Join Date: May 2004
Location: California
Vehicle:
2005 Impreza Wrx Sti
WR BLUE PEARL

Default

Quote:
Originally Posted by Impreza4ever View Post
This is what i ordered and i can confirm it works perfectly for the 05 Sti. Just rebuilt my pump today and its 100% leak free.
So its been a month and i just noticed my pump is barelly leaking from the 2 halves which makes me wonder if dash 37 is indeed to thin. Will a 144 be the same o-ring but thicker?
Impreza4ever is offline   Reply With Quote
Old 10-02-2013, 09:02 PM   #260
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

Quote:
Originally Posted by Impreza4ever View Post
So its been a month and i just noticed my pump is barelly leaking from the 2 halves which makes me wonder if dash 37 is indeed to thin. Will a 144 be the same o-ring but thicker?
Pretty close (see below). Let us know how it goes. Also, that's why the FEP might be a good choice. The clear coating makes it a bit bigger.

http://www.dupontelastomers.com/Prod...rez/as568a.asp
WRXFanDave is offline   Reply With Quote
Old 10-04-2013, 07:34 AM   #261
Oddisey
Scooby Newbie
 
Member#: 369761
Join Date: Oct 2013
Chapter/Region: South East
Location: Charlotte NC
Vehicle:
2006 STi
Steel Gray

Default

Yet another extremely well written and detailed DIY post. I'll be changing my pump on my 06 STi here sortly and I wanted to find a well put together post to use as a guide. Cadillac, I will be very greatful when I get this swap done and I'll post back up with the events of the upgrade.
Oddisey is offline   Reply With Quote
Old 11-01-2013, 08:15 PM   #262
summersalad33
Scooby Newbie
 
Member#: 342463
Join Date: Jan 2013
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2004 WRX
JBP

Default

Anyone know the part # for the longer bottom bolt that connects the p/s bracket to the block?
summersalad33 is offline   Reply With Quote
Old 11-07-2013, 04:27 AM   #263
Leo05suby
Scooby Newbie
 
Member#: 307286
Join Date: Jan 2012
Chapter/Region: Tri-State
Location: New Jersey
Vehicle:
05' EJ25 - Stock
Metallic Gray

Default

Since a lot of people tried to rebuild thier P/S pump. Did any of thier pump lasted more than 20k miles with no problem? Just wondering. Thanks
Leo05suby is offline   Reply With Quote
Old 11-08-2013, 04:27 AM   #264
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

I did mine about this time last year. FEP on the two bigger rings, buna-n on the others. Still going well. I do seem to be losing fluid really slowly, but the pump is not whining or anything. Probably 12k to 15k miles.

Edit -Just realized that I posted exactly one day after you (same time). Crazy coincidence.
WRXFanDave is offline   Reply With Quote
Old 11-08-2013, 07:18 PM   #265
Leo05suby
Scooby Newbie
 
Member#: 307286
Join Date: Jan 2012
Chapter/Region: Tri-State
Location: New Jersey
Vehicle:
05' EJ25 - Stock
Metallic Gray

Default

Quote:
Originally Posted by WRXFanDave View Post
I did mine about this time last year. FEP on the two bigger rings, buna-n on the others. Still going well. I do seem to be losing fluid really slowly, but the pump is not whining or anything. Probably 12k to 15k miles.

Edit -Just realized that I posted exactly one day after you (same time). Crazy coincidence.
Lol. Thanks man. I just wanted to see how reliable changing the seals. I ordered the HBNR 70 seals. Checking to see if those seals are good.
Leo05suby is offline   Reply With Quote
Old 11-09-2013, 03:13 AM   #266
summersalad33
Scooby Newbie
 
Member#: 342463
Join Date: Jan 2013
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2004 WRX
JBP

Smile

I was able to get a 55mm bolt with a 1.25mm thread pitch for the lower right bracket bolt. Looks like all of the holes for the bracket were stripped to some degree. Getting longer bolts works, for now.

Pump is still leaking from the hex nut as I was not able to remove it to replace the o-ring. Any tips?

EDIT:

Well, it wasn't the hex nut from where the pump was leaking. It is leaking from the high pressure standoff, where the banjo bolt attaches. I was able to remove it with a deep socket and the o-ring was fine. I replaced it anyway. Bolted it back on the pump along with the banjo bolt and it is still leaking. Perhaps it's the crush washer?

Last edited by summersalad33; 11-13-2013 at 01:16 AM.
summersalad33 is offline   Reply With Quote
Old 11-13-2013, 11:01 AM   #267
93V
Scooby Newbie
 
Member#: 249092
Join Date: Jun 2010
Chapter/Region: Tri-State
Location: Fairfield, NJ
Vehicle:
2007 STI Limited
UGM #507/800

Default

i read through this entire thread and don't see anyone who had just swapped a remanufactured pump in (though there was one guy who got a dirty one from a local auto parts store).

anyone look into what gets changed in the rebuilt ones? anyone use a rebuilt one? do they come with warranties? weighing the options i have in rebuilding vs. swapping.

also, does anyone have part numbers for the auxiliary parts, like the return line that leaks often or the hard line with the banjo bolt?
93V is offline   Reply With Quote
Old 11-13-2013, 01:05 PM   #268
93V
Scooby Newbie
 
Member#: 249092
Join Date: Jun 2010
Chapter/Region: Tri-State
Location: Fairfield, NJ
Vehicle:
2007 STI Limited
UGM #507/800

Default

also, for what it's worth, my PSP seems to whine when it's cold out. earlier, after the car had completely cooled off and it was still pretty cold (30F?) i turned the car on and experimented with listening to the pump while i did certain things. both turning the steering wheel and revving the motor seemed to make the noise louder (duh). interestingly enough, it seemed that i could also slightly modulate the noise by fiddling with the 90-degree fitting on top of the housing for the return line. the return hose is definitely stiff. fluid is generally dirty brown, though i recently added a little dexron 3 ATF. no super noticeable leaks (on the ground) but there is general wet crud around the pump area.

also interestingly enough, after the car was at normal operating temperature and it was a little warmer out (39F now), the pump isn't noisy at all.

aside from just now when everything felt fine, i have been getting intermittent steering wheel vibrations, varying in intensity. wheel also jitters a bit, again intermittently, if i turn it from side to side while stationary.

car has 105k on it now. had the 90k/timing belt service done about 7k miles ago. didn't change the PS fluid.
93V is offline   Reply With Quote
Old 11-14-2013, 05:36 AM   #269
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

Quote:
Originally Posted by 93V View Post
i read through this entire thread and don't see anyone who had just swapped a remanufactured pump in (though there was one guy who got a dirty one from a local auto parts store).

anyone look into what gets changed in the rebuilt ones? anyone use a rebuilt one? do they come with warranties? weighing the options i have in rebuilding
I am very confident that I've seen other threads with people who installed rebuilt ones and had them leak very soon after. They do have warranties, but do you really want to keep swapping pumps if they leak/whine? Now it's possible that the people posting those threads are the ones with problems, so maybe you'd be ok.
WRXFanDave is offline   Reply With Quote
Old 11-14-2013, 05:42 AM   #270
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

Quote:
Originally Posted by 93V View Post
also, for what it's worth, my PSP seems to whine when it's cold out. earlier, after the car had completely cooled off and it was still pretty cold (30F?) i turned the car on and experimented with listening to the pump while i did certain things. both turning the steering wheel and revving the motor seemed to make the noise louder (duh). interestingly enough, it seemed that i could also slightly modulate the noise by fiddling with the 90-degree fitting on top of the housing for the return line. the return hose is definitely stiff. fluid is generally dirty brown, though i recently added a little dexron 3 ATF. no super noticeable leaks (on the ground) but there is general wet crud around the pump area.

also interestingly enough, after the car was at normal operating temperature and it was a little warmer out (39F now), the pump isn't noisy at all.

aside from just now when everything felt fine, i have been getting intermittent steering wheel vibrations, varying in intensity. wheel also jitters a bit, again intermittently, if i turn it from side to side while stationary.

car has 105k on it now. had the 90k/timing belt service done about 7k miles ago. didn't change the PS fluid.
There's a bearing on the front of the pump that you can see through the holes in the pulley that I'll bet has black oily dirt-filled crud on it around the shaft, which could be slow leak of ATF out the front due to the bearing or oil seal being worn. Also, the ball bearings inside of the bearing may be worn so that could contribute to some of the noise. One easy o-ring to change is the one on top of the pump under the black plastic 90 degree fitting. Some people have luck with just changing that.
WRXFanDave is offline   Reply With Quote
Old 11-14-2013, 06:39 AM   #271
93V
Scooby Newbie
 
Member#: 249092
Join Date: Jun 2010
Chapter/Region: Tri-State
Location: Fairfield, NJ
Vehicle:
2007 STI Limited
UGM #507/800

Default

Thanks Dave. Any idea where to get replacement lines? I saw one guy got a replacement hard line but it leaked. The plastic nipple o-ring and rubber hose would be an easy swap, especially if I drain my fluid (to change it).

Also there were a crapload of people talking about how maybe this o-ring is better than that one/etc. Is the post #9 still the latest and greatest?

And if I want to just try swapping that top one real quick, which ring is that from the list?

Last edited by 93V; 11-14-2013 at 07:41 AM.
93V is offline   Reply With Quote
Old 11-14-2013, 09:57 AM   #272
Mental
Scooby Newbie
 
Member#: 321773
Join Date: May 2012
Location: Exton, PA
Vehicle:
2005 WRX
Aspen White

Default

Quote:
Originally Posted by 93V View Post
Also there were a crapload of people talking about how maybe this o-ring is better than that one/etc. Is the post #9 still the latest and greatest?

And if I want to just try swapping that top one real quick, which ring is that from the list?
I am in the process of trying to fix my power steering issues. Started with the easy stuff, worm clamps/top o-ring, but looks like I will be rebuilding the pump.

The top o-ring on the low pressure line is a dash 014. I went with post 9 rings; still need to grab the oil seal for the bearing, which I am failing to find the correct part number for at the moment.

There is old fluid caked on pretty much all parts of my pump
Mental is offline   Reply With Quote
Old 11-14-2013, 10:00 AM   #273
93V
Scooby Newbie
 
Member#: 249092
Join Date: Jun 2010
Chapter/Region: Tri-State
Location: Fairfield, NJ
Vehicle:
2007 STI Limited
UGM #507/800

Default

Quote:
Originally Posted by Mental View Post
I am in the process of trying to fix my power steering issues. Started with the easy stuff, worm clamps/top o-ring, but looks like I will be rebuilding the pump.

The top o-ring on the low pressure line is a dash 014. I went with post 9 rings; still need to grab the oil seal for the bearing, which I am failing to find the correct part number for at the moment.

There is old fluid caked on pretty much all parts of my pump
thanks, i guess i'll try that one first.
93V is offline   Reply With Quote
Old 11-15-2013, 02:33 AM   #274
WRXFanDave
Scooby Newbie
 
Member#: 151245
Join Date: Jun 2007
Chapter/Region: South East
Location: St. Pete
Vehicle:
2006 WRX Wagon
Silver

Default

Quote:
Originally Posted by 93V View Post
Also there were a crapload of people talking about how maybe this o-ring is better than that one/etc. Is the post #9 still the latest and greatest?
As far as I know, post 9 is still the latest and greatest list, HOWEVER, I can tell you that you will need an extra -014 (may be a -013) o-ring on the 2006 and I'm assuming 2007. I don't know about the 2005 pump (68cadillac's original write-up was on a 2004). If you were to look at the back of the pump, you would be able to tell if you need this extra one if you knew what you were looking for (see below).

I can't speak for what is best. I can only say what I know. FEP seems like it would be better, but I didn't want to pay so much for the small rings. Others have had trouble installing the small FEPs since they're much stiffer. I went with FEP on the 2 big ones and Buna-N on the others. So far so good for me a year later.

Showing the extra plumbing and o-ring

From the first rebuild by 68cadillac on a 2004


Now from my post. See the difference? You can see from the outside.

Last edited by WRXFanDave; 11-15-2013 at 11:31 PM.
WRXFanDave is offline   Reply With Quote
Old 11-15-2013, 06:47 AM   #275
93V
Scooby Newbie
 
Member#: 249092
Join Date: Jun 2010
Chapter/Region: Tri-State
Location: Fairfield, NJ
Vehicle:
2007 STI Limited
UGM #507/800

Default

yeah, ok got it. haven't taken the pump off yet.

yesterday i did do SOME things however. i siphoned the fluid out of the reservoir, added new fluid, started the car, turned the wheel back and forth a lot and repeated for a total of 3 flushes/adds. i was using what is probably the worst siphon ever made so i decided to stop after 3. the fluid was noticeably cleaner...probably not perfect, but was out of daylight and not wasting my time with the POS siphon again.

i also changed the top o-ring as previously discussed.

after these two things, the pump is a LOT quieter. i also, so far, haven't really experienced much vibration, if at all. this morning was "only" 34F but the car was not groaning like a mf'er. going to drive around a bit more with these two simple things done and re-assess. i suspect that there are other leaks, whether its at the clamps or at the actual pump. i'd love to de-grease/clean the pump and area around it so i can monitor if and where fluid is coming out of there.
93V 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Power Steering Pump Rebuild??? stumper302 Normally Aspirated Powertrain 4 10-20-2010 04:09 PM
WTB: Power Steering Pump 2004 WRX. mattius Private 'Wanted' Classifieds 2 12-01-2009 12:01 AM
WTB 2004-2007 WRX or STI Power Steering Pump!! TURBOTOD Private 'Wanted' Classifieds 1 03-19-2009 02:32 PM
power steering pump rebuild cbose Service & Maintenance 1 10-21-2003 04:34 AM


All times are GMT -4. The time now is 09:41 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.