BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


Reply
 
Thread Tools Display Modes
Old Tue, May-23-2017, 02:17:35 PM   #1
R1pilot
Registered User
 
Join Date: Aug 2007
Age: 39
Posts: 112
In the garage:
Reputation: 0 R1pilot is on a distinguished road
Location: WPB

United States




Default Connecting rod bearing torque question

Car has a July of 2004 build date.

Quick stupid question. Do you torque the bolts as follows:

Bolt 1 to 5nm
Bolt 2 to 5nm
Bolt 1 to 30nm
Bolt 2 to 30nm
Bolt 1 105 degrees
Bolt 2 105 degrees

Or

Bolt 1 to 5nm
Bolt 2 to 5nm
Bolt 1 to 30nm
Bolt 1 105 degrees
Bolt 2 to 30nm
Bolt 2 105 degrees

I was going to do it the first way as I have two torque wrenches but the I realize that I can do it the second way as my SnapOn has the torque then angle feature.

I have to figure out if I can set the SnapOn to do torque, torque, angle, angle.

Thanks.
Jump to top R1pilot is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Tue, May-23-2017, 03:40:57 PM   #2
Tp///M3
Got ///M?
 
Tp///M3's Avatar
 
Join Date: Nov 2005
Posts: 1,218
Reputation: 0 Tp///M3 will become famous soon enough
Location: Sunny Diego!

Laos




Default Re: Connecting rod bearing torque question

Quote:
Originally Posted by R1pilot View Post
Car has a July of 2004 build date.

Quick stupid question. Do you torque the bolts as follows:

Bolt 1 to 5nm
Bolt 2 to 5nm
Bolt 1 to 30nm
Bolt 2 to 30nm
Bolt 1 105 degrees
Bolt 2 105 degrees

Or

Bolt 1 to 5nm
Bolt 2 to 5nm
Bolt 1 to 30nm
Bolt 1 105 degrees
Bolt 2 to 30nm
Bolt 2 105 degrees

I was going to do it the first way as I have two torque wrenches but the I realize that I can do it the second way as my SnapOn has the torque then angle feature.

I have to figure out if I can set the SnapOn to do torque, torque, angle, angle.

Thanks.
I did the first option of the above and I used multiple torque wrenches also. The angle was used with Snap On torque. It seems to be holding over 4k miles so far. Will get oil analysis on the next oil change.
__________________

04 CarbonBlack/ImolaRed
Jump to top Tp///M3 is offline   Reply With Quote
Old Tue, May-23-2017, 04:07:07 PM   #3
gabylonfive
Registered User
 
gabylonfive's Avatar
 
Join Date: Feb 2013
Posts: 81
In the garage:
Reputation: 0 gabylonfive is on a distinguished road
Location: SF Bay Area

United States




Default Re: Connecting rod bearing torque question

I did mine the first way also - used a 3/8" torque wrench for settling and initial torque and a 1/2" snapon techangle for angle torque.
__________________
2004 6MT M3 Coupe [Alpine White// Cinnamon]
2008 6AT Cobb Stg2 335i Sedan [Alpine White // Saddle Brown]
2001 5MT 330i Sedan Track Car[Jet Black // #318]
Jump to top gabylonfive is offline   Reply With Quote
Old Tue, May-23-2017, 04:26:41 PM   #4
R1pilot
Registered User
 
Join Date: Aug 2007
Age: 39
Posts: 112
In the garage:
Reputation: 0 R1pilot is on a distinguished road
Location: WPB

United States




Default Re: Connecting rod bearing torque question

Perfect. Thanks guys.

I have to do this tonight.
Jump to top R1pilot is offline   Reply With Quote
Old Tue, May-23-2017, 07:08:39 PM   #5
Obioban
Moderator
 
Obioban's Avatar
 
Join Date: Jul 2003
Posts: 33,134
In the garage:
Reputation: 54 Obioban has a spectacular aura about
Location: SE PA

United States




Default Re: Connecting rod bearing torque question

And then loosen/repeat!
__________________

Current Cars: 2005 IR/IR M3, 2001 LMB/blk M5, Wife's 6mt NA RWD e91, 04 M3 wagon
Past cars: 04 M3, 96 M3, S50B32 e36 M3 CM race car

FS: 6mt, RWD, iDrive free, properly maintained e91 (wagon)
Jump to top Obioban is offline   Reply With Quote
Old Tue, May-23-2017, 07:18:13 PM   #6
Tp///M3
Got ///M?
 
Tp///M3's Avatar
 
Join Date: Nov 2005
Posts: 1,218
Reputation: 0 Tp///M3 will become famous soon enough
Location: Sunny Diego!

Laos




Default Re: Connecting rod bearing torque question

Quote:
Originally Posted by Obioban View Post
And then loosen/repeat!
Obioban,
I thought I saw you mentioned this on one of your posts, you repeated 4 times instead of 3. Is there an advantage on this and how many times are allowed on the bolt? Thanks.
__________________

04 CarbonBlack/ImolaRed
Jump to top Tp///M3 is offline   Reply With Quote
Old Tue, May-23-2017, 07:26:08 PM   #7
Obioban
Moderator
 
Obioban's Avatar
 
Join Date: Jul 2003
Posts: 33,134
In the garage:
Reputation: 54 Obioban has a spectacular aura about
Location: SE PA

United States




Default Re: Connecting rod bearing torque question

Quote:
Originally Posted by Tp///M3 View Post
Obioban,
I thought I saw you mentioned this on one of your posts, you repeated 4 times instead of 3. Is there an advantage on this and how many times are allowed on the bolt? Thanks.
BMW says to do it 3-5 times. I'm sure 3, 4, or 5 would be fine. But, 4 is the most in the middle of the three
__________________

Current Cars: 2005 IR/IR M3, 2001 LMB/blk M5, Wife's 6mt NA RWD e91, 04 M3 wagon
Past cars: 04 M3, 96 M3, S50B32 e36 M3 CM race car

FS: 6mt, RWD, iDrive free, properly maintained e91 (wagon)
Jump to top Obioban is offline   Reply With Quote
Old Tue, May-23-2017, 08:26:53 PM   #8
R1pilot
Registered User
 
Join Date: Aug 2007
Age: 39
Posts: 112
In the garage:
Reputation: 0 R1pilot is on a distinguished road
Location: WPB

United States




Default Re: Connecting rod bearing torque question

Quote:
Originally Posted by Obioban View Post
And then loosen/repeat!
Yep! Hopefully it goes smoothly. I have everything ready waiting for me.

Jump to top R1pilot is offline   Reply With Quote
Old Sat, Jun-17-2017, 11:31:01 PM   #9
R1pilot
Registered User
 
Join Date: Aug 2007
Age: 39
Posts: 112
In the garage:
Reputation: 0 R1pilot is on a distinguished road
Location: WPB

United States




Default Re: Connecting rod bearing torque question

Finally today I had a chance to change the bearings, I am glad I stopped driving the car when I did ...





I stopped driving the car on Thanksgiving of 2016 after my last oil analysis. I am sure I would have spun #5 if I drove it another week. Crank was OK.

Car has 95k miles, MY2004 and quite a few track days.

Thanks for all the help guys and the amazing DIYs.
Jump to top R1pilot is offline   Reply With Quote
Old Sun, Jun-18-2017, 12:30:39 AM   #10
Ridgey
Registered User
 
Join Date: Feb 2017
Posts: 66
Reputation: 0 Ridgey is on a distinguished road

United States




Default Re: Connecting rod bearing torque question

Crazy that the #5 bearing looks like a straight up penny and the others are pretty normal.
Jump to top Ridgey is offline   Reply With Quote
Reply

Bookmarks

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. The time now is 03:50:30 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2014 M3Forum.com
Discussing Connecting rod bearing torque question in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)