Welcome to the North American Subaru Impreza Owners Club Sunday December 21, 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 06-04-2012, 08:25 PM   #151
hoffmanEstates
Scooby Guru
 
Member#: 122043
Join Date: Aug 2006
Chapter/Region: MWSOC
Location: aurora
Vehicle:
04 wagonier
psm

Default

now what happens to all the grease that u push in there from regreasing of grease gun? its going to eventually purge out...
* Registered users of the site do not see these ads.
hoffmanEstates is offline   Reply With Quote
Old 06-30-2012, 05:03 PM   #152
atvtrailrider
Scooby Newbie
 
Member#: 271521
Join Date: Jan 2011
Default

There is no nut/bolt on the bottom of my strut??
atvtrailrider is offline   Reply With Quote
Old 07-01-2012, 01:08 PM   #153
Superorb
Scooby Guru
 
Member#: 135252
Join Date: Dec 2006
Chapter/Region: RMIC
Location: Denver, CO
Vehicle:
2002 WRX Wagon
86% Operational :(

Default

Quote:
Originally Posted by atvtrailrider View Post
There is no nut/bolt on the bottom of my strut??
Are you asking us or telling us?

Grammar makes a difference...
Superorb is offline   Reply With Quote
Old 07-02-2012, 10:09 AM   #154
Osgood30
Scooby Specialist
 
Member#: 20437
Join Date: Jun 2002
Chapter/Region: Tri-State
Location: Downingtown, PA
Vehicle:
1999 Impreza RS
STI Ver7

Default

Quote:
Originally Posted by atvtrailrider View Post
There is no nut/bolt on the bottom of my strut??
Then you most likely do not have STI struts??
Osgood30 is offline   Reply With Quote
Old 07-02-2012, 03:52 PM   #155
Superorb
Scooby Guru
 
Member#: 135252
Join Date: Dec 2006
Chapter/Region: RMIC
Location: Denver, CO
Vehicle:
2002 WRX Wagon
86% Operational :(

Default

Quote:
Originally Posted by Osgood30 View Post
Then you most likely do not have STI struts??
Can't tell if he has STi struts but the bottom bolt is missing or if his struts do not have studs/nuts on them in the first place.
Superorb is offline   Reply With Quote
Old 07-11-2012, 09:25 PM   #156
hwy61
Scooby Specialist
 
Member#: 87950
Join Date: May 2005
Location: B,ham AL
Vehicle:
2005 STI
Gone....Somewhere in MS

Default

Quote:
Originally Posted by Badler View Post
How long until the whole strut is filled with grease? I don't see the benefit of this.
I'm not sure this was ever adequately answered. Here is my 2 cents on the situation. First, the grease fitting is necessary to completely fill the grease reservoir/chamber between the upper and lower seals of the assembled strut. You can probably get the chamber 85% filled prior to reassembly but not 100%. After the damper body is inserted into the strut housing there is no way to add additional grease to insure that the damper body stays in contact with the grease and unless it stays in contact there will be no distribution of lubricant onto the bushings. When they become dry.....the strut will clunk.

Now with regard to over filling, routinely adding more grease, etc. I'm not sure grease will ever need to be added again. But, should you want to or to repressureize the grease chamber, the fitting provies the easy method. remember the fitting was primarily installed so that the chamber could be fully filled upon reassembly. As long as the grease is in contact with the damper body....no additional grease will be required and no clunk will develope. So, the primary reason for the grease fittings is to allow the chamber to be completely filled with grease, not allow for routine greasing.

Subaru has no method for fully filling the chamber with grease in the stock assembly. All the can do is the same we could do. Put a blob of grease in there, smooth it around the outside of the strut body between the seals and insert the damper. If you look at the original post pictures you will see how much of the stock yellow grease is still perfectly clean because it never touched the damper body and as a result was not distributed onto the bushings. It is no more complex than this. A method for completely filling the chamber and adding a small amount of grease in the future should some work past the seals.

If anyone wanted to change the grease from time to time it would be easy to drill and tap the opposite side of the housing and install a plug. Want new grease, remove the plug and pump away at the grease fitting. All excess grease would be pushed out the unplugged hole. Then reinstall the plug. Hwy61
hwy61 is offline   Reply With Quote
Old 08-03-2012, 03:07 PM   #157
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default

What kind of grease? silicon, white lithium, EP moly, marine... etc?

Is there a concern over the petroleum based greases and the urethane bushings that guide the strut?

For a short term solution, can you use a spray lithium grease like this to spray the shaft (while still on car) without problems?


(Reason for this last part: bone dry damper shaft but can't get to disassembling to regrease for now)
chimchimm5 is offline   Reply With Quote
Old 08-03-2012, 10:00 PM   #158
04furesterXT
Scooby Specialist
 
Member#: 73223
Join Date: Oct 2004
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2009 STI

Default

Don't think the type is as critical as the viscosity so that it will get picked up by the shaft but not get packed down.

Spraying the shaft works temporarily but because of the heavy side loading that causes the problem in the first place, it gets scraped off pretty quickly and can attract grit to the area.

Last edited by 04furesterXT; 08-04-2012 at 12:40 AM.
04furesterXT is offline   Reply With Quote
Old 08-09-2012, 12:24 AM   #159
MRF22
Scooby Specialist
 
Member#: 210516
Join Date: May 2009
Chapter/Region: NWIC
Location: Beaverton
Vehicle:
2005 Sti
AW

Default

Ok so I am about to disassemble my rear struts to re-grease them. What kind of grease should I buy? Also is it as simple as it sounds?
MRF22 is offline   Reply With Quote
Old 08-10-2012, 11:21 PM   #160
AspenScoob255
Scooby Specialist
 
Member#: 217405
Join Date: Jul 2009
Chapter/Region: MAIC
Location: The glorious Eastern Shore, MD
Vehicle:
2006 WRX

Default

Yes it's a fairly straight forward job so long as the nuts come off without incident.

I used Mobil 1 red synthetic, as did most that did this i believe.
AspenScoob255 is offline   Reply With Quote
Old 09-14-2012, 04:16 PM   #161
05DoubleURX
Scooby Newbie
 
Member#: 258503
Join Date: Sep 2010
Chapter/Region: Tri-State
Location: Westchester
Vehicle:
2005 WRX
WR Blue

Default

So that damn 14mm is loose but not coming off the threads..just spinning. I tried the 6mm hex key on the tophat end and the cutting slot and screwdriver method on the 14mm side with no luck. Is there a way to relock the shaft inside the strut housing without getting that 14mm nut off? Thanks.
05DoubleURX is offline   Reply With Quote
Old 09-19-2012, 03:35 PM   #162
madbiker10
Scooby Newbie
 
Member#: 208511
Join Date: Apr 2009
Location: Wheaton, IL
Vehicle:
2005 STI Stage 2
WR Blue

Default Great write up

Thanks for taking the time to help with this annoying STI problem!
madbiker10 is offline   Reply With Quote
Old 09-19-2012, 09:06 PM   #163
Hour6
Scooby Newbie
 
Member#: 126566
Join Date: Sep 2006
Default

I had a similar issue. Ended up dremeling the nut close to the threads and then cold chiseling it the rest of the way off, since I couldn't get a nut splitter in there. Scary, but it worked great.
Hour6 is offline   Reply With Quote
Old 02-25-2013, 05:21 PM   #164
Fonzey
Scooby Newbie
 
Member#: 338440
Join Date: Nov 2012
Default

Sorry for the thread resurrection, but excellent guide.

I've obtained some used struts/springs to "practise" the procedure on, and if it goes well I'll simply swap these onto my 05 STi.

Just a question though, if the top nut is giving you grief - what's to stop you simply undoing the 14mm at the bottom of the strut and then sliding the entire spring/damper insert/tophat out from the top of the strut?
Fonzey is offline   Reply With Quote
Old 03-02-2013, 07:13 PM   #165
johnblahuta88
Scooby Specialist
 
Member#: 221614
Join Date: Aug 2009
Default

Im using some high temp bearing grease. its super thick. but when its under 30 degrees It starts to rub a little. guess I might just have to put some more in.
johnblahuta88 is offline   Reply With Quote
Old 03-25-2013, 10:29 PM   #166
ZondaF
Scooby Newbie
 
Member#: 147989
Join Date: May 2007
Default

Thank you for this great write up.

Last edited by ZondaF; 04-29-2013 at 01:57 PM.
ZondaF is offline   Reply With Quote
Old 04-24-2013, 02:02 AM   #167
hella_sti
Scooby Specialist
 
Member#: 139289
Join Date: Jan 2007
Chapter/Region: MWSOC
Location: ND
Vehicle:
2003 WRX Wagon
PSM

Default

I've got aftermarket spt sti inverted struts, would it make sense to do this mod to them while I have them off? I haven't experienced any clunking at all
hella_sti is offline   Reply With Quote
Old 04-27-2013, 04:01 PM   #168
ZondaF
Scooby Newbie
 
Member#: 147989
Join Date: May 2007
Default Spinning strut

I'm in the middle of this right now and I'm trying to get the 14mm nut off of the bottom of the strut but it keeps spinning. Someone please help me out if you've experienced this problem!
ZondaF is offline   Reply With Quote
Old 04-29-2013, 01:15 PM   #169
calebtharrell
Scooby Newbie
 
Member#: 242113
Join Date: Mar 2010
Chapter/Region: South East
Location: Brevard (Asheville), NC
Vehicle:
2004 STi, 2008 STi
2002 WRX

Default

There is a tab that holds the shaft in place on the inside of the strut. If the tab falls out of the slot the nut just spins. Try turning the shaft until you hear the tab fall back into place.
calebtharrell is offline   Reply With Quote
Old 04-29-2013, 01:58 PM   #170
ZondaF
Scooby Newbie
 
Member#: 147989
Join Date: May 2007
Default

Ok I will give this a shot tomorrow, thank you for the quick response. I hope I didn't do any damage to the seals by spinning it so much
ZondaF is offline   Reply With Quote
Old 05-18-2013, 04:26 PM   #171
eric rxb
Scooby Newbie
 
Member#: 62066
Join Date: May 2004
Chapter/Region: Tri-State
Location: North Jersey
Vehicle:
2006 STi
OBP

Default

I'm having trouble removing the two 19mm nuts that hold the bottom of the strut. It seems no matter how much force I put the nut won't budge, and it seems like it's going to strip before it moves. Should I just cut the nut/bolt and put new ones in?
eric rxb is offline   Reply With Quote
Old 05-21-2013, 11:11 AM   #172
AspenScoob255
Scooby Specialist
 
Member#: 217405
Join Date: Jul 2009
Chapter/Region: MAIC
Location: The glorious Eastern Shore, MD
Vehicle:
2006 WRX

Default

Impact gun either air or a high quality electric ie. Snap on/ingersoll rand

Breaker bar with a big ass pipe

If it breaks off then so be it, it will come out the other way with a punch/hammer or an air hammer. Things break, these bolts are pretty substantial so you SHOULD be fine.

Hit em with some pb blaster or another penetrant a night or so before and keep treating them until removal.

If you get them out in one piece, use common sense to determine whether they should be replaced or not.
AspenScoob255 is offline   Reply With Quote
Old 06-02-2013, 12:20 AM   #173
andrewp724
Scooby Specialist
 
Member#: 73361
Join Date: Oct 2004
Chapter/Region: South East
Location: Greenville, SC
Vehicle:
'03 PSM Wagon
V9 EJ207/6MT, Dom 3.0XT-R

Default

I just disassembled my STi struts tonight for the first time to check on the grease situation. I've had "clunk" in the rear for a few years now.

1. It's not difficult, or messy to take the inserts out of the strut housings. It only gets tedious and messy when you clean the old grease out (which I haven't done as of yet).

2. There's no reason to remove the top hat and springs from the top. If you have aftermarket springs that are lower (which means shorter), you can just remove the 14mm bolt on the bottom and pull the strut housing off the insert from the bottom. If you are still running stock or stock height springs, you will need to use a spring compressor to prevent the insert from flying out of the housing when the nut comes off the bottom.

3. I still can't get my head around how the white lithium actually gets down into the housing and past the seals when just sprayed under the dust cover. And I'm sure it makes a mess as well. I know people say it makes a difference for a while, but I just don't get it. I guess it's thin enough to seep past the seals. But because of that, here's my hybrid, lazy method.

I did take the housings off the inserts as described earlier. Then being able to see clearly the "grease trap" area between the seals, I sprayed white lithium grease on top of the existing factory yellow grease and seals. I tried to get a nice thick coat all the way around. I then slid the housings back onto the inserts. Once the housing is back on, stand the assembly upside down so that it's resting on your top hat studs. With my shorter springs I could apply a small amount of force downward until the insert stud was seated into the housing hole. I then put the nut on and tightened it down. Make sure to keep pressure on the housing while tightening the nut so that it stays seated in the slotted hole. If you don't, the insert rod will just spin and the nut will not tighten. This step would be easier with a spring compressor on the spring (necessary for stock height springs).

So the strut/spring/top hat assembly is all back together, and will be installed on the car tomorrow. I'm hoping my disassembly/white lithium method will last longer than the traditional spray under the dust cover method and also not gunk up my strut with grease, dirt, and debris.

-Drew
andrewp724 is offline   Reply With Quote
Old 06-20-2013, 08:41 PM   #174
bigfishs
Scooby Newbie
 
Member#: 114848
Join Date: May 2006
Chapter/Region: International
Location: NY
Vehicle:
2004 STI

Default

Bump. About 2 years ago I had the clunk, took apart and regreased. Lasted for a year. Got 2 new rear struts (suby bucks) and put a set of RCE blacks in. Seems the extra movement caused the clunking in just one year so its grease nipple time. May get a set of coilovers from TiC in the future.
bigfishs is offline   Reply With Quote
Old 08-29-2013, 01:56 AM   #175
battlemike
Scooby Newbie
 
Member#: 191771
Join Date: Oct 2008
Chapter/Region: MAIC
Location: Odenton, Maryland
Vehicle:
2005 Subaru STi
Silver

Default

I almost did this to fix my rear clunk. As I went to remove the bottom nut at the bottom of the strut, it just kept spinning and wouldn't come off. It didn't seem to matter what I tried. I tried hold the shock still and nada.

So I gave up and decided to inspect else where, as I noticed no movement in the rear strut/shocks when I was messing with it.

Turns out my endlinks were bent. I replaced them with my kartboy endlinks I had. Problem solved...no clunk.
battlemike 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
does 05 sti rear bumper and flares will fit 04 sti?? davidsti1 Interior & Exterior Modification 2 08-11-2009 10:57 AM
Rear diff/outrigger & shifter bushings installed smurfwrx Car Part Reviews 7 08-06-2008 12:09 AM
WTB or WTT: Mint STI rear seats, doorcards & PSM STI Trunk Kromber2 MAIC Private Classifieds 3 05-07-2007 04:01 PM
FS : JDM STi Recaro Seat, STi Rear Under Diffuser & JDM Acre Brake Pads!!! outcast SCIC Private Classifieds 6 03-09-2007 02:46 PM
FS:05 STI rear sway bar & bump for trunk! 04blkbeauty Tri-State Area Forum 2 06-23-2005 01:05 AM


All times are GMT -4. The time now is 12:37 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.