BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
Strasse Forged
Post Reply
 
Thread Tools Search this Thread
      07-20-2015, 11:15 PM   #1
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

My experience of DIY Rod bearings (WPC and OEM bolts)

Good evening guys, just got my car back on the road this evening. Dylan335i and I knocked out my rod bearings this weekend. Also did valve cover gaskets and spark plugs while we were in there. The car has 66k miles on it. No rod knock, or any other symptoms. It was done as a precautionary measure for the future FI plans.

Overall, went extremely well. Probably 18 hours of actual work (lunchbreaks and screwing around not included) but we took our time. Made sure we were both extremely comfortable with how things were coming off, and getting put back together. There were no corners cut, and I made sure the rod bolts were torqued exactly to my OCD brain before closing the motor back up.

I decided to go with WPC bearings, with oem bolts. After some extensive research, i decided against ARP...which Dylan hated me for...but we learned a lot in the process! The OEM bolts were a royal pain in the ass. I'll be the first to say it... The torquing procedure is brutally monotonous and repetitive.

For anyone who is looking, the OEM bolt procedure is:

Tighten each bolt to 6NM, tighten to 20NM, tighten to 130 degrees - Remove, clean and reoil bolts. Repeat two more times. We did it rod by rod, as we found it to be the easiest way to keep track of our movements. This may not seem difficult, but when you are doing 11 steps per bolt (176 total movements) it gets ridiculous. If i had to do it again, I would recommend going ARP bolts due to the fact of they are simply torque and go. They are about 4x the price, but when we both almost went braindead going through the OEM bolt steps.

Results:
Cylinders 1-8 left to right

Top 1-4

Top 5-8

Bottom 1-4

Bottom 5-8

I was extremely happy with the wear of these bearings. I think they could have gone another 65k no problem, and they look great. Cylinder #7 looks to have the worst of the wear, but none of them were alarming. Some even had no wear. Hopefully more of you guys will start to see better patterns after pulling your bearings!

If anyone has any questions about the procedure, I will be more than happy to answer to the best of my ability.

-Edit: need to give more credit to Dylan here as we did it as his house. He has done the bearings before and was a wealth of knowledge. Knew exactly what to do. Definitely could not do it without him and Carlito!

Last edited by Move Over; 07-22-2015 at 12:39 PM.
Appreciate 7
      07-20-2015, 11:29 PM   #2
Sephiroth
E92M circle jerker
Sephiroth's Avatar
India
70
Rep
835
Posts

Drives: S2k & M3
Join Date: Nov 2007
Location: mid-MO

iTrader: (1)

Nice work! Those are indeed some of the better looking ones around here. After seeing the condition of the OEMs are you still happy with going WPC vs staying OEM vs waiting for the updated design?
__________________
BMW M3 E92 JB/Fox + BE Bearings + OEM perforated mod + BBS RGR
Honda S2000 AP2 GPW/Tan
Appreciate 0
      07-21-2015, 01:34 AM   #3
8k3
Banned
69
Rep
956
Posts

Drives: Car
Join Date: Feb 2013
Location: Boise, ID

iTrader: (1)

They look good
Appreciate 0
      07-21-2015, 02:36 AM   #4
cenix
Captain
cenix's Avatar
United_States
181
Rep
744
Posts

Drives: E90 M3 ZCP, F15
Join Date: Oct 2011
Location: SoCal

iTrader: (5)

great looking bearings in my opinion for your mileage! very cool that you were able to do this on your own with a friend!
Appreciate 0
      07-21-2015, 04:43 AM   #5
FNG
Captain
FNG's Avatar
45
Rep
618
Posts

Drives: The Bus
Join Date: Jun 2011
Location: HNL

iTrader: (5)

Good job!

Funny how desensitized we are to rod bearing wear. In any other engine, this would be considered significantly abnormal wear. I don't think i've ever seen a rod bearing thread with what is generally considered normal wear.
Appreciate 1
      07-21-2015, 04:53 AM   #6
American Dave
Lieutenant
47
Rep
465
Posts

Drives: 2008 Jerez Black E92 M3
Join Date: Oct 2014
Location: Perth Western Australia

iTrader: (0)

Garage List
2008 BMW M3 E92  [0.00]
Well done mate and thanks for sharing.
__________________
Jerez Black 2008 6MT with Borla Atak Exhaust/ M3 World X Pipe and Test Pipes/ aFe Pro Stage 2 Intake / 19" Advan DZ-DF Forged Wheels wrapped in ContiSport Contact 5P 245/35/19 Fronts & 285/30/19 Rears/ KW Var 3 Coilovers / BPM Sports Stage 2 Tuned/ VAC Rod Bearing & Bolt Replacement / Throttle Body Actuator Gear Set Replacement
Appreciate 0
      07-21-2015, 08:29 AM   #7
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

Quote:
Originally Posted by 1love View Post
Nice work! Those are indeed some of the better looking ones around here. After seeing the condition of the OEMs are you still happy with going WPC vs staying OEM vs waiting for the updated design?
Yes, I am happy with going WPC as the guys around here have had good experiences with them. All they are is a stock bearing with a treatment that increases clearance a bit. Bolts...I may have gone ARP a second time around, but it was a good experience to learn about angle torque and how stretch bolts work.

As far as the updated design, I know Kawa and RG are putting some serious R&D into these, but neither myself or Dylan wanted to be the first to try them out, nor willing to wait until potentially october to buy them. I'll probably do the bearings again in 60-70k miles, and hopefully by then there will be some feedback on the new bearings.

With the way my bearings looked, I think I'll be good with the WPC for quite some time. I double triple checked everything on the install, and it went pretty well.

Quote:
Originally Posted by FNG View Post
Good job!

Funny how desensitized we are to rod bearing wear. In any other engine, this would be considered significantly abnormal wear. I don't think i've ever seen a rod bearing thread with what is generally considered normal wear.
- Second sentence...Bingo. Do we know what a normal wear bearing looks like?

I know I don't. I'm tempted to take apart my wife's jeep (Simple pan drop as the whole subframe does not have to come out lol) and change out the bearings just because I want to see what the difference in wear would be on another vehicle where the bearings are a non issue. Would be an interesting test.

Both Dylan and my bearings were in pretty decent shape, his being a little worse but not much at 88k miles. He did the DIY a few months ago and helped me through this process. Pretty amazing what has to be done to the car. Actually driving it after the front end has been completely disassembled is an experience in and of itself.
Appreciate 0
      07-21-2015, 11:53 AM   #8
JDM_CL9
Second Lieutenant
Canada
23
Rep
244
Posts

Drives: ///M3 Sedan
Join Date: Aug 2014
Location: Toronto, #TheNorth

iTrader: (1)

Great job on DIY'ing it!

Just wondering what your driving habits like for your car prior to this work?
__________________
2011 BMW E90 ///M3 - JB/FR
Appreciate 0
      07-21-2015, 12:18 PM   #9
///M Power-Belgium
Major General
///M Power-Belgium's Avatar
Belgium
4278
Rep
6,798
Posts

Drives: ///M3-DCT- E92 Silverstone II
Join Date: Jul 2012
Location: Belgium

iTrader: (0)

It's a pleasure to see good looking bearings even after 66K miles in the Florida hot climate .
Thanks man for sharing .
__________________
BPM DEV-Tune & DCT software update & Servotronic & coding///Alpine HID Angeleyes///Oem.exhaust mod.
Appreciate 0
      07-21-2015, 02:39 PM   #10
WhatsADSM
Second Lieutenant
22
Rep
217
Posts

Drives: 2011 E90 ZCP
Join Date: Sep 2013
Location: Milwaukee

iTrader: (0)

Thanks for sharing!
Appreciate 0
      07-21-2015, 03:23 PM   #11
e92zero
Captain
36
Rep
773
Posts

Drives: 2011 E92 BW
Join Date: May 2010
Location: somewhere in US

iTrader: (0)

Those bearings do look good. Thanks for sharing. Do you mind sharing with us how you drive/maintain your car and your oil change interval?
Appreciate 0
      07-21-2015, 03:39 PM   #12
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

Quote:
Originally Posted by JDM_CL9 View Post
Great job on DIY'ing it!

Just wondering what your driving habits like for your car prior to this work?
Quote:
Originally Posted by e92zero View Post
Those bearings do look good. Thanks for sharing. Do you mind sharing with us how you drive/maintain your car and your oil change interval?
No problem. I actually bought the car about a month ago with 65k miles. It appears to me from my research/receipts given to me that the car got oil changes every 15k. I am the third owner, and I don't think the last owner really knew about the warm up period via our conversations.

He bought it with 38k miles on it, and the first owner I believe was in Connecticut. Based the history given to me from the vin pulled at my local BMW dealer, I think it was done every 15k. Could be wrong, I didn't really know the history, which is why i changed the bearings out so quickly.
Appreciate 0
      07-21-2015, 04:21 PM   #13
Beemdog
Woof!
Beemdog's Avatar
United_States
181
Rep
1,258
Posts

Drives: '11 M3 ZCP LeMans Blue
Join Date: Mar 2014
Location: Sonoma Cownty, CA

iTrader: (0)

Garage List
Some guys are doing the 15000 mile oil change at the dealer (esp. with the free service period of four years), and doing the extra oil changes outside of the dealer, so they are not visible on the BMW records. This makes it hard to tell the whole story. But it seems likely that a lot of owners would only do the factory recommended services, unless they are gearheads and actually get into things like mods and upgraded maintenance.
Appreciate 0
      07-21-2015, 04:44 PM   #14
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

Quote:
Originally Posted by Beemdog View Post
Some guys are doing the 15000 mile oil change at the dealer (esp. with the free service period of four years), and doing the extra oil changes outside of the dealer, so they are not visible on the BMW records. This makes it hard to tell the whole story. But it seems likely that a lot of owners would only do the factory recommended services, unless they are gearheads and actually get into things like mods and upgraded maintenance.

This is true. I have no knowledge of the original owner. I did however get to know the second owner a little bit, and he seemed like he takes care of his things, but by all means not a gear head. I'm pretty sure he was doing oil changes in 15k intervals.
Appreciate 0
      07-21-2015, 05:12 PM   #15
javarithms
Second Lieutenant
javarithms's Avatar
United_States
37
Rep
225
Posts

Drives: '13 E92 M3 SG FR, '03 530i
Join Date: Dec 2014
Location: WA

iTrader: (0)

Any chance you taped the whole remove/install and were planning on doing a howto video on youtube (wishful thinking)??

Awesome job btw.
__________________
Appreciate 0
      07-21-2015, 05:23 PM   #16
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

Quote:
Originally Posted by javarithms View Post
Any chance you taped the whole remove/install and were planning on doing a howto video on youtube (wishful thinking)??

Awesome job btw.

Haha, you'd be scrolling through a whole lot of BSing! We had three of us there and it was definitely a fun while we worked.

But no, I don't have any how to videos coming...I do have it fresh on my mind and can answer any questions!
Appreciate 0
      07-21-2015, 09:44 PM   #17
BzsBimmer
2-4-6-8 My car and house depreciate
BzsBimmer's Avatar
South Korea
228
Rep
3,263
Posts

Drives: 2010 E90 M3
Join Date: Mar 2006
Location: Modesto CA

iTrader: (19)

Send a message via Yahoo to BzsBimmer
OP
Any pointers you can provide on the valve cover gaskets? Was it as easy as the online manual makes it out to be or were there things that needed to be moved out of the way etc.?
Appreciate 0
      07-21-2015, 09:56 PM   #18
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

Quote:
Originally Posted by BzsBimmer View Post
OP
Any pointers you can provide on the valve cover gaskets? Was it as easy as the online manual makes it out to be or were there things that needed to be moved out of the way etc.?
They were a pain actually, getting them lined up right without the gasket falling out was very tedious.

You need to remove the plenum, intake (drivers side) fuel injector plugs, coil pack plugs, coil packs, coolant reservoir (pass side only). After they are all removed, tie wrap all the wires up as far as you can to give you adequate enough clearance to clear the camshaft.

I actually goofed on my drivers side and am leaking a bit of oil. I need to pull this stuff and reinstall the gasket on my drivers side. Both sides should be around a 3 hour job. Pretty straightforward, but can be a tedious job if you aren't patient.
Appreciate 0
      07-22-2015, 12:26 AM   #19
BzsBimmer
2-4-6-8 My car and house depreciate
BzsBimmer's Avatar
South Korea
228
Rep
3,263
Posts

Drives: 2010 E90 M3
Join Date: Mar 2006
Location: Modesto CA

iTrader: (19)

Send a message via Yahoo to BzsBimmer
Quote:
Originally Posted by alxmlr789 View Post
They were a pain actually, getting them lined up right without the gasket falling out was very tedious.

You need to remove the plenum, intake (drivers side) fuel injector plugs, coil pack plugs, coil packs, coolant reservoir (pass side only). After they are all removed, tie wrap all the wires up as far as you can to give you adequate enough clearance to clear the camshaft.

I actually goofed on my drivers side and am leaking a bit of oil. I need to pull this stuff and reinstall the gasket on my drivers side. Both sides should be around a 3 hour job. Pretty straightforward, but can be a tedious job if you aren't patient.
Thanks for that. I'll add that to my valve cover thread.
Did you use OEM gaskets? I know I had that problem with my Merc using Victor Reinz gaskets.

Did you use the sealer on the gaskets as the BMW instructions state?
Appreciate 0
      07-22-2015, 07:34 AM   #20
Move Over
Major
Move Over's Avatar
128
Rep
1,270
Posts

Drives: M3 6MT
Join Date: May 2015
Location: Peninsula

iTrader: (4)

Quote:
Originally Posted by BzsBimmer View Post
Thanks for that. I'll add that to my valve cover thread.
Did you use OEM gaskets? I know I had that problem with my Merc using Victor Reinz gaskets.

Did you use the sealer on the gaskets as the BMW instructions state?
Yep used OEM gaskets. Do you perhaps have the instructions from BMW?
Appreciate 0
      07-22-2015, 06:57 PM   #21
BzsBimmer
2-4-6-8 My car and house depreciate
BzsBimmer's Avatar
South Korea
228
Rep
3,263
Posts

Drives: 2010 E90 M3
Join Date: Mar 2006
Location: Modesto CA

iTrader: (19)

Send a message via Yahoo to BzsBimmer
Quote:
Originally Posted by alxmlr789 View Post
Yep used OEM gaskets. Do you perhaps have the instructions from BMW?
http://www.m3post.com/forums/showthread.php?t=1140757

Drei Bond 1209
Appreciate 0
      08-28-2016, 11:42 PM   #22
Brian_Fantana
Private First Class
Brian_Fantana's Avatar
United_States
25
Rep
196
Posts

Drives: 09 Alpine white E90 M3 DCT
Join Date: May 2013
Location: Gig harbor wa

iTrader: (0)

Garage List
2009 M3  [0.00]
Quote:
Originally Posted by Move Over View Post
They were a pain actually, getting them lined up right without the gasket falling out was very tedious.

You need to remove the plenum, intake (drivers side) fuel injector plugs, coil pack plugs, coil packs, coolant reservoir (pass side only). After they are all removed, tie wrap all the wires up as far as you can to give you adequate enough clearance to clear the camshaft.

I actually goofed on my drivers side and am leaking a bit of oil. I need to pull this stuff and reinstall the gasket on my drivers side. Both sides should be around a 3 hour job. Pretty straightforward, but can be a tedious job if you aren't patient.
So if you had to do it again would you do it yourself or pay someone?
__________________
They've done studies, you know. Sixty percent of the time, it works every time. ~ Brian Fantana
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 -4. The time now is 07:15 AM.




m3post
m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST