Welcome to the North American Subaru Impreza Owners Club Wednesday June 29, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

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 10-26-2007, 02:46 PM   #1
shemoves
Scooby Guru
 
Member#: 80663
Join Date: Jan 2005
Chapter/Region: SWIC
Location: Glendale, AZ
Vehicle:
2005 STi

Default Miscellaneous Torque specs (list)

Thought it'd be nice compile it all in one place. These are the ones I could find with basic searching. Torque values are in Ft/Lbs unless otherwise stated. Please inform me of additions and/or corrections so this can be as complete and accurate as possible.

Engine:

Alternator Pulley: 47
Crank Pulley Bolt: 90-94 on NA 2.2; 130-134 on NA 2.5
Exhaust (Up pipe>header, Up pipe>turbo, turbo>downpipe/downpipe<turbo): 26
Ignition Coil/Igniter Assy: 11.7 (confirmed via 2004 Impreza service manual)
Front Cam Retainer: 7 (EJ257)
Oil Pump: 4.7 (EJ257)
Oil Drain Plug: 33
Oil Pan: 3.6
Power Steering Pump Pulley: 38
Spark Plug: 15.2 (SOHC and DOHC Impreza engines, confirmed via 2004 Impreza service manual)
Rod Bolt: 38.4 (EJ257)
Water Pump: 8.7 (EJ257)
Thermostat Housing: 4.7

Transmission/Drivetrain:

ATF drain Plug: 18.4
Flywheel: 58.2 ('02+ WRX, '02+ 2.5RS)
Clutch cover to flywheel: 11.6 ('02+ WRX, '02+ 2.5RS)
Oil Drain: Oil Pan side-32.5/Clutch housing side-51.6 (STi 6mt)
Oil Drain: 32.5 (WRX)
Rear Differential Bushing: 51.6 ('02+ WRX)
Rear Differential Drain/Fill Plugs: 36.2 ft/lbs
Rear Differential Studs (mounting bolts): 51.6
Transmission to engine: 36.9 ('02+ WRX, '02+ 2.5RS)

Suspension/Wheels:

Lug (wheel) Nuts: 66.5
Rear Sway Bar mounts: 18 (WRX)
Rear End-Links: 33
Strut top nut (holds the whole strut assembly together): 41
Front Hub Bearing (four bolts): 47.9
ABS Wheel Speed Sensor: 24.3
Front Strut Bolts (camber): 129
Front Tie Rod: 19.9
Ball Joint Through Bolt: 37
Front Ball Join Castle Nut: 19.9
Front Backing Plate to Upright: 13.0
Rear Backing Plate to Upright: 38.3
Rear Lateral Link: 103
Rear Trailing Link: 66
Rear Strut Bolts(To Upright): 145
Rear Strut Mount Tops: 14.5
Rear Strut Insert: 30
Axle Nut: 137-162? (rear possibly as high as 174)
Rear Axle Nut 140?

Brakes:

Bleed screw: 14.5 (STi)
Bracket Bolts: 59
Front Brake Caliper: 80
Brake Hose to Strut: 23.6
Brake Hose Banjo Bolt to Caliper: 13.0
Brake Hose Banjo Bolt to Caliper: 13.0
Caliper: 19.5? (2002 non-turbo), 27.5? for 2002 Turbo
Front Brake Caliper: 80?
Rear Brake Caliper: 47.9?


Miscellaneous:

Fuel Tank Drain Plugs: 19.2

*Use at your own risk. I take no responsibility for things breaking, you getting hurt, or rioting by angry neighbors. While my hope is that these are as accurate as possible, I do not work for Subaru, I am not a professional machanic, and I have limited access to service manuals or tech docs. This is just a compilation of things I could find via various forms of media.
* Registered users of the site do not see these ads.

Last edited by shemoves; 07-20-2011 at 02:30 PM.
shemoves is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-27-2007, 02:07 AM   #2
z
Scooby Specialist
 
Member#: 41762
Join Date: Aug 2003
Chapter/Region: International
Location: House of Pancakes
Vehicle:
04 STi
CT-DE-FL rinse+repeat

Default

Add engine oil drain plug...33 ft lbs
z is offline   Reply With Quote
Old 10-27-2007, 04:18 PM   #3
shemoves
Scooby Guru
 
Member#: 80663
Join Date: Jan 2005
Chapter/Region: SWIC
Location: Glendale, AZ
Vehicle:
2005 STi

Default

Quote:
Originally Posted by zavigm View Post
Add engine oil drain plug...33 ft lbs
done, thanks
shemoves is offline   Reply With Quote
Old 10-04-2009, 10:45 PM   #4
Tom Hartz
Scooby Newbie
 
Member#: 225284
Join Date: Sep 2009
Chapter/Region: SCIC
Location: So Cal.
Vehicle:
2011 Impreza WRX
Spark Silver Metalic

Default

66.5 ft lbs for lug nuts? Americas Tire did 80 ft lbs. 66.5 seems a little low. Is this what people are running? I looked in the owners manual and can not find the spec.

Tom
Tom Hartz is offline   Reply With Quote
Old 10-04-2009, 11:23 PM   #5
leecea
Scooby Guru
 
Member#: 37359
Join Date: May 2003
Vehicle:
2003 WRX

Default

Quote:
Originally Posted by Tom Hartz View Post
66.5 ft lbs for lug nuts? Americas Tire did 80 ft lbs. 66.5 seems a little low. Is this what people are running? I looked in the owners manual and can not find the spec.

Tom
That is the correct spec - surprisingly low.

For what it's worth, I use 68 ft/lbs rear (stock studs), 72 ft/lbs front (upgraded studs). I have no proof that my choice is better or worse than anyone elses.
leecea is offline   Reply With Quote
Old 10-05-2009, 12:34 AM   #6
Uncle Scotty
*** Banned ***
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

many of these values are applicible to new hardware as installed at the factory and are a bit low for reused hardware

I usually increase some---not all....by 10-15%...exhaust system bolts are one example

and I use 70-75ft-lbs for lugnuts
Uncle Scotty is offline   Reply With Quote
Old 10-05-2009, 12:46 PM   #7
Tom Hartz
Scooby Newbie
 
Member#: 225284
Join Date: Sep 2009
Chapter/Region: SCIC
Location: So Cal.
Vehicle:
2011 Impreza WRX
Spark Silver Metalic

Default

Thanks for the info guys. I love this car and want to take care of it.

Tom
Tom Hartz is offline   Reply With Quote
Old 12-02-2010, 07:16 PM   #8
lsito5revo
Scooby Newbie
 
Member#: 248213
Join Date: Jun 2010
Chapter/Region: Tri-State
Default

Quote:
Originally Posted by Tom Hartz View Post
66.5 ft lbs for lug nuts? Americas Tire did 80 ft lbs. 66.5 seems a little low. Is this what people are running? I looked in the owners manual and can not find the spec.

Tom
Thought it was 95 FLBS? even 80 seems a bit shy.
lsito5revo is offline   Reply With Quote
Old 12-02-2010, 11:26 PM   #9
Uncle Scotty
*** Banned ***
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

Quote:
Originally Posted by Tom Hartz View Post
66.5 ft lbs for lug nuts? Americas Tire did 80 ft lbs. 66.5 seems a little low. Is this what people are running? I looked in the owners manual and can not find the spec.

Tom
Quote:
Originally Posted by lsito5revo View Post
Thought it was 95 FLBS? even 80 seems a bit shy.






and YES 65.7ft-lbs is a bit low, I think

but too many idiots think that they have to get all gorilla with lugnuts and end up ****ing all sorts of **** up

I'm surprised that some have even got 90 on them before they twist right off


IT IS JUST A 12MM STUD d0000000ds...........
Uncle Scotty is offline   Reply With Quote
Old 12-03-2010, 01:07 AM   #10
lsito5revo
Scooby Newbie
 
Member#: 248213
Join Date: Jun 2010
Chapter/Region: Tri-State
Default

Quote:
Originally Posted by Uncle Scotty View Post






and YES 65.7ft-lbs is a bit low, I think

but too many idiots think that they have to get all gorilla with lugnuts and end up ****ing all sorts of **** up

I'm surprised that some have even got 90 on them before they twist right off


IT IS JUST A 12MM STUD d0000000ds...........
Just what i was taught through out my education. maybe teach was wrong. but i torque my lugs to 95 and havnt spun one yet.
lsito5revo is offline   Reply With Quote
Old 12-03-2010, 01:46 AM   #11
Uncle Scotty
*** Banned ***
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

Quote:
Originally Posted by lsito5revo View Post
Just what i was taught through out my education. maybe teach was wrong. but i torque my lugs to 95 and havnt spun one yet.
guess you should question you education as suspect and wrong

too bad so much of that goes on
Uncle Scotty is offline   Reply With Quote
Old 07-19-2011, 08:27 AM   #12
paulpat
Scooby Specialist
 
Member#: 237145
Join Date: Feb 2010
Chapter/Region: SCIC
Location: 562
Vehicle:
02 WRX
12 FXT

Default

<3 thanks
paulpat is offline   Reply With Quote
Old 07-19-2011, 08:50 AM   #13
Big-E
NASIOC Supporter
 
Member#: 123843
Join Date: Aug 2006
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2016 STI LTD CWP w/
blade wing from factory

Default

Quote:
Originally Posted by shemoves View Post
Brakes:

Front Brake Caliper: 80
This specification is for the OEM STI Brembo front caliper, 2004-2007 (I do not know about the newer models), and yes, it is correct.

The OEM repair manual states a higher number and it is wrong so do not rely on the manual. Other reference: http://www.iwsti.com/forums/gd-braki...per-bolts.html
Big-E is offline   Reply With Quote
Old 07-19-2011, 10:30 AM   #14
AliBenn
NASIOC Supporter
 
Member#: 487
Join Date: Nov 1999
Chapter/Region: TXIC
Location: Greatwood/Sgrlnd
Vehicle:
1998 /2005 STunIcorn
Acadia Green RS-T

Default

i dont have exact number
but i just changed my oil pan and was suprised when a mechanic told me
only 8lbs for STi oil pan bolts!

any higher and fugi bond woudnt seal and the pan will leak!
AliBenn is offline   Reply With Quote
Old 07-19-2011, 11:20 AM   #15
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Spark plugs are 18.5 ft lbs to 22 ft lbs. 20 ft lbs is good if you don't want the range. Don't under torque the plugs.

See Q18: https://docs.google.com/leaf?id=0B8l...wY2Vm&hl=en_US
Bacon117 is offline   Reply With Quote
Old 07-19-2011, 03:48 PM   #16
shemoves
Scooby Guru
 
Member#: 80663
Join Date: Jan 2005
Chapter/Region: SWIC
Location: Glendale, AZ
Vehicle:
2005 STi

Default

Quote:
Originally Posted by Bacon117 View Post
Spark plugs are 18.5 ft lbs to 22 ft lbs. 20 ft lbs is good if you don't want the range. Don't under torque the plugs.

See Q18: https://docs.google.com/leaf?id=0B8l...wY2Vm&hl=en_US
Based on what I have seen on NASIOC and Scoobymods, 15-19 seems to be the range. Anyone have a Subaru manual they can post or link to get confirmation?
shemoves is offline   Reply With Quote
Old 07-19-2011, 04:44 PM   #17
OrbitalEllipses
Scooby Guru
 
Member#: 178811
Join Date: Apr 2008
Chapter/Region: MAIC
Location: MoCo
Vehicle:
2011 White Corolla
Over 400hp

Default

^Google "ken gilbert sti manual".
OrbitalEllipses is offline   Reply With Quote
Old 07-19-2011, 05:49 PM   #18
shemoves
Scooby Guru
 
Member#: 80663
Join Date: Jan 2005
Chapter/Region: SWIC
Location: Glendale, AZ
Vehicle:
2005 STi

Default

Per Subaru's 2004 Impreza service manual, Spark Plug Torque on both SOHC and DOHC engines is 15.2 lbs, and the DOHC ignition coils are 11.7 lbs.
shemoves is offline   Reply With Quote
Old 07-19-2011, 10:06 PM   #19
Uncle Scotty
*** Banned ***
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

Quote:
Originally Posted by AliBenn View Post
i dont have exact number
but i just changed my oil pan and was suprised when a mechanic told me
only 8lbs for STi oil pan bolts!

any higher and fugi bond woudnt seal and the pan will leak!
actually it is only 3.6ft-lbs per the factory manual....I use 5ft-lbs

the bolts dont really hold the pan on....they just hold the pan in place while the sealant cures
Uncle Scotty is offline   Reply With Quote
Old 07-20-2011, 09:32 AM   #20
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Quote:
Originally Posted by shemoves View Post
Based on what I have seen on NASIOC and Scoobymods, 15-19 seems to be the range. Anyone have a Subaru manual they can post or link to get confirmation?
That's interesting. The Subaru manual for my 2002 does say 15 ft lbs. However, NGK (the maker of the plug) recommends 18.5 - 22 ft lbs. If torque is too low, there is chance the plug could back out. It's happened at some OEM's, but I have not heard of it with Subaru.

So, let's call it 19 ft lbs so it encompasses all known information.
Bacon117 is offline   Reply With Quote
Old 07-20-2011, 09:51 AM   #21
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Quote:
Originally Posted by shemoves View Post
Per Subaru's 2004 Impreza service manual, Spark Plug Torque on both SOHC and DOHC engines is 15.2 lbs, and the DOHC ignition coils are 11.7 lbs.
Yea, that's lower than NGK's recommendation. Not sure why. Unfortunately, Subaru does not work with NGK USA, so I cannot really ask why the torque is different.

Anyway, I recommend sticking with NGK's torque. Having too low torque is a lot worse than too high torque (don't go higher than 22 ft lbs)
Bacon117 is offline   Reply With Quote
Old 07-20-2011, 09:59 AM   #22
fastnoypi
Scooby Guru
 
Member#: 6886
Join Date: May 2001
Chapter/Region: Tri-State
Vehicle:
MY01 EJ207 HTA35r
AVCS ON!

Default

Quote:
Originally Posted by Bacon117 View Post
Yea, that's lower than NGK's recommendation. Not sure why. Unfortunately, Subaru does not work with NGK USA, so I cannot really ask why the torque is different.

Anyway, I recommend sticking with NGK's torque. Having too low torque is a lot worse than too high torque (don't go higher than 22 ft lbs)
Subaru possibly chooses the lower torque recommendation due to the aluminum heads. No sense to go higher than factory spec, as you risk stripping the threads.
fastnoypi is offline   Reply With Quote
Old 07-20-2011, 11:51 AM   #23
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Quote:
Originally Posted by fastnoypi View Post
Subaru possibly chooses the lower torque recommendation due to the aluminum heads. No sense to go higher than factory spec, as you risk stripping the threads.
You might be right. I'm still going to stick with the 20 ft.lbs I've recommended to my customers since I started at NGK 4.5 years ago. 15 ft.lbs may be ok, but it's not what we use here, which is why it's strange.
Bacon117 is offline   Reply With Quote
Old 07-20-2011, 01:01 PM   #24
Uncle Scotty
*** Banned ***
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

I think subaru uses the lower torque to make it less likely to seize the plugs in the heads and have issues with removing them without removing the engine.

I have had times with broken off plugs in subaru engines and it is quite easy for n000bs to **** up the install and make things


but that's just what I think


and I DO use a torque wrench when I install plugs
Uncle Scotty is offline   Reply With Quote
Old 07-20-2011, 03:23 PM   #25
Bacon117
Scooby Specialist
 
Member#: 118500
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: Michigan
Vehicle:
02 Silver Wagon
"Stage 2"

Default

Quote:
Originally Posted by Uncle Scotty View Post
I think subaru uses the lower torque to make it less likely to seize the plugs in the heads and have issues with removing them without removing the engine.

I have had times with broken off plugs in subaru engines and it is quite easy for n000bs to **** up the install and make things


but that's just what I think


and I DO use a torque wrench when I install plugs
What's strange is that Honda has some issues with the plugs backing out, and they want to specify a torque higher than what we recommend. (It took quite a few months of testing before everyone would buy off on that one). Plus, as I've mentioned we get a lot of plugs returned that have blown up engines b/c they were too loose. The plugs couldn't transfer heat quickly enough, and overheated. You can calculate the torque used by measuring the thickness of the gasket (it crushes when you torque it), and some of them were barely crushed.

Have you tried running the engine for a while to get things hot before removing the plugs? That's the "NGK recommendation" Never had stuck plugs, so I've never had to try.

Although it goes against NGK's recommendation, I have not heard 15 ft.lbs causing issues, so I suppose it's adequate.
Bacon117 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
('93-'01) Need torque specs Patrick L Impreza Forum 4 05-15-2001 06:41 PM
('93-'01) Torque Specs? Dan00RS Impreza Forum 4 05-10-2001 08:24 AM
('93-'01) Need torque spec pronto Patrick Olsen Impreza Forum 2 05-07-2001 12:36 AM
('93-'01) torque spec on exhaust manifold nuts? nils Impreza Forum 1 04-23-2001 06:11 PM
Torque specs for pulley? JGard Normally Aspirated Powertrain 9 04-12-2001 10:01 AM

All times are GMT -4. The time now is 11:17 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.