Comprehensive S85 Rod Bearing Picture Thread - Page 2 - BMW M5 Forum and M6 Forums
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post #11 of 826 Old 5th September 2013, 11:40 PM
Fiftytwoeighty
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^^^Thanks Issac. Looks like your preventative maintenance will pay off. Did you ever post a BlackStone? I can't remember.


~Woody

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s85 + (afterthought) 6mt =133,000 miles with no RCOD and counting ...just saying...

2007 e60 m5 6MT Interlagos Blue; DINAN 3.91 Exploded @8x,xxx ; Performance Gearing (Blanton) 3.91 LSD 3 clutch, 30/50 ramps, R&P polished ; RPi Oil Cooler/Scoops; DINAN High Flow Air Mass Meter/Intake, DINAN strut, DINAN Monoballs, FastAttack Tune, w/Kung Fu grip!, Einhorn Industries Race Jedders, track pipe, and x-pipe; DINAN Section 3, DINAN LTW 19x9 ET18, 19x10 ET25, Michelin PSS 255/40/19 and 295/35/19, Macht Schnell 15mm spacers (front); FERODO FRP3000H race pads; StopTech BBK 6/4 380mm/35mm x 380mm/32mm w/SS lines; RDSport F/R sways; CKS coils w/swift springs, -2.0/-2.5 F/R camber; z3 1.9L SSK, with f10 shifter; RedLine B/S RDR off, F/R G1W-H, ALP w/GPS and BT. SprintBooster v3; Euro MDM and DSC off. Fluids: Motul 7100 4T 10w60, Redline ShockProof Lightweight 75w140, Castrol SRF, Unicorn Jizz and Wolfpack Blood; Rod bearings replaced at 84,000 miles!!

1988 e28 m5 STROKER 420bhp 91 octane(Paul Burke s38b39); VAC LTW flywheel; MegaSquirt G2 DME; Euro RestoMod track car: caged, 6 point FIA harness, FIA Sabelt GT-160 seats...AC/heater, interior, sunroof, rear seat delete; Euro Headers, dump valve, and race cats; z3 1.9L ssk and ZHP shifter; custom Ground Control Coilovers/camber plates; Mason Engineering front/rear strut bars; Brembo 6/4 BBK; 17x8 BBS RK w/Dunlop StarSpec II; undergoing Euro restoration, building the sub 2,400lb e28 CSL ///Motorsport never built. 5.71lbs/hp

1996 FZJ 80; LOCKED; Factory TRD Supercharger; Expo/Overland/Backcountry Rig; custom sleeper/drawer system, full rock armor, 33"s on 2.5" OME Heavy Lift; Rigid LEDs F/R; 228,000 miles and counting.
2008 Audi A3 S-Line Quattro w/flappy paddles (Mammoth Mountain Commuter)
2000 e39 m5 TiAg (Gone, but not forgotten) sold 7/2014 to a good home.

The Indys that I trust for all my Beasts' needs: oceansidemotorsports.com my local physician for service autohausfrankfurt.com/ my local Dinan supplier trinityautosport.com my local drug dealer for my crack habit
fastattackmotorsports.com because JColley!

~I FRACKING!
~Viva La Wolfpack!
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post #12 of 826 Old 6th September 2013, 12:31 AM
MIGHTY5
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Originally Posted by Fiftytwoeighty View Post
^^^Thanks Issac. Looks like your preventative maintenance will pay off. Did you ever post a BlackStone? I can't remember.

No amigo never did, i do have the kit ready to go on my next oil change though so it'll be really cool to monitor the values as i put the miles on . Ill make sure to post those as well so we can all compare. I was really suprised at the wear on the RB's im under 60k and they look this bad! I think anyone with a 60k plus on an S85 on stock rod b's really should seriously consider swapping em out unless you drive under 5k rpm's all the time but who the heck does that with this motor under the hood? If your not the original owner and your over 60,000 miles you should really consider this swap. If anyone needs an experienced shop in SoCal that can do this work shoot me a PM and ill give you the info.

Last edited by MIGHTY5; 6th September 2013 at 12:32 AM.
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post #13 of 826 Old 6th September 2013, 12:33 AM
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Glad you finally posted them pics Isaac

ESS Supercharged VT2-650
Custom ESS Alpha N Tune
Sprint Booster V2
RPI GTS Exhaust
RPI SV1 Oil Cooler
RPI Jet Hot Coated Headers
Snow Performance Water / Methanol Injection System.
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KW V3 Coilovers
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Daily Setup: 3 Pc ADV.1 05 wheels F 20x9 / 255/35/20 R 20x10.5 / 295/30/20 / Michelin PSS Tires
12mm Rogue Engineering Spacers.
Track Setup: Apex Arc-8 wheels F 18x9 / Hoosier A6 P245/40ZR-18 R 18x10.5 / Hoosier A6 P315/30ZR-18.
Vorsteiner Rep Hood / Gloss Black Roof Wrap / Smoked LED Side Markers / Limo Tint
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White LED Interior Lighting / Black/White CF Steering Wheel Roundel
Alcantara-CF Flat Bottom Steering Wheel
SS Handbrake Handle/Pedals
Hardwired Valentine 1
P3Cars BMW E60 Vent Integrated Digital Interface
Custom SC Kit Color Scheme.
Mirror Fold-up / Window Roll-up / Sunroof Closure / Auto S5 at Start up / Euro Launch Control / iDrive Acceptance Delete / Rev Limiter 8600 / Top Speed Limiter Removed.
RD Sports 6 Piston F 380/35mm and 4 Piston R 380/32mm Big Brake Kit.
Soft Close Doors / HUD/ Active Seats.
The journey continues......

Dynojet 698rwhp / 498ft lb trq.
Old 60-130mph 8.29secs....new time to come.

RIDES:
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post #14 of 826 Old 6th September 2013, 12:38 AM
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Glad you finally posted them pics Isaac
Yeah dude i still dont have a new thread button lol i hit up jcolley hes gonna see what he can do but for the meantime he said to post them here which i think is a better idea anyway.
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post #15 of 826 Old 6th September 2013, 02:49 AM
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Has anyone had the ID of theirs connecting rods measured? Reason I ask is that the wear pattern on the bearings seems to suggest that the tolerances are quite tight or the rod IDs are changing over time from the heat and hi-revving. If indeed the rod IDs are changing (tighter or looser) than original spec, this would suggest tolerances will be out of spec with the new bearings than from the factory. In turn, if the IDs are larger, clearances will be looser and more prone to spinning a rod bearing or if the IDs are tighter, excessive rod bearing wear would be imminent. The more I think about it, a rod and bearing change seems like it would be the more logical approach to alleviating the issues we are running into with regards to premature rod bearing wear. Of course the trade off is full engine removal which could be dramatically more expensive.

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Last edited by SoCaLE39; 6th September 2013 at 03:42 PM.
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post #16 of 826 Old 6th September 2013, 07:26 PM
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I dont think the rods change at all i think a simple bearing swap is sufficient, its only the rob bearings that wear not the rods themselves. I'd ask DUSH to be certain.
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post #17 of 826 Old 6th September 2013, 07:40 PM
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My rods were measured (no kinky stuff MIGHTY) and they were still within tolerance.

ESS Supercharged VT2-650
Custom ESS Alpha N Tune
Sprint Booster V2
RPI GTS Exhaust
RPI SV1 Oil Cooler
RPI Jet Hot Coated Headers
Snow Performance Water / Methanol Injection System.
10.1:1 Low Compression Engine Build / Mahle Custom Pistons / Carrillo Rods / Custom Fuel System / Custom Rod Bearings.
KW V3 Coilovers
Dinan Rear Sway Bar / Dinan Front Roll Control / Dinan Monoballs.
Daily Setup: 3 Pc ADV.1 05 wheels F 20x9 / 255/35/20 R 20x10.5 / 295/30/20 / Michelin PSS Tires
12mm Rogue Engineering Spacers.
Track Setup: Apex Arc-8 wheels F 18x9 / Hoosier A6 P245/40ZR-18 R 18x10.5 / Hoosier A6 P315/30ZR-18.
Vorsteiner Rep Hood / Gloss Black Roof Wrap / Smoked LED Side Markers / Limo Tint
Custom Headlights with Orion V2 Rings / LCI Fins / LCI Clear Eyebrows
Custom Blacked Out LCI Tail Lights and Miranda Bruce V6.1 Cables
Hartge Rep Urethane Front Lip
AC Schnitzer Roof Spoiler
Matte Black Kidneys Grills / Gloss Black Side Gills / Gloss Black Rear M5 Emblem / Black/White CF Hood &Trunk Roundel / Rear Bumper Mesh / M5 Puddle lights
Electric Fold Away Front License Plate Frame
CF Rear Diffuser / CF Side Skirt Extensions /CF Rear Side Extensions.
White LED Interior Lighting / Black/White CF Steering Wheel Roundel
Alcantara-CF Flat Bottom Steering Wheel
SS Handbrake Handle/Pedals
Hardwired Valentine 1
P3Cars BMW E60 Vent Integrated Digital Interface
Custom SC Kit Color Scheme.
Mirror Fold-up / Window Roll-up / Sunroof Closure / Auto S5 at Start up / Euro Launch Control / iDrive Acceptance Delete / Rev Limiter 8600 / Top Speed Limiter Removed.
RD Sports 6 Piston F 380/35mm and 4 Piston R 380/32mm Big Brake Kit.
Soft Close Doors / HUD/ Active Seats.
The journey continues......

Dynojet 698rwhp / 498ft lb trq.
Old 60-130mph 8.29secs....new time to come.

RIDES:
2015 Jaguar F Type R, black on black
2006 BMW M5 VT2-650 low compression supercharged: 698rwhp on Dynojet.
2001 Porsche 996 Twin Turbo, GT3 rear sway bar, Rennline CF front strut bar, Tarrett drop links and toe links, GT3 control arms, BC coilovers, Sharkwerks EVOM tune, RPi exhaust, Sharkwerks sports clutch, HRE 540r wheels, K16 Billet turbos, GTRS Intercoolers: 535rwhp, 550ft lbs trq. SOLD
2004 Infiniti G35 APS Twin Turbo with built motor and fully built transmission. 520rwhp and 550ft trq. SOLD
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post #18 of 826 Old 6th September 2013, 07:44 PM Thread Starter
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Quote:
Originally Posted by SoCaLE39 View Post
Has anyone had the ID of theirs connecting rods measured? Reason I ask is that the wear pattern on the bearings seems to suggest that the tolerances are quite tight or the rod IDs are changing over time from the heat and hi-revving. If indeed the rod IDs are changing (tighter or looser) than original spec, this would suggest tolerances will be out of spec with the new bearings than from the factory. In turn, if the IDs are larger, clearances will be looser and more prone to spinning a rod bearing or if the IDs are tighter, excessive rod bearing wear would be imminent. The more I think about it, a rod and bearing change seems like it would be the more logical approach to alleviating the issues we are running into with regards to premature rod bearing wear. Of course the trade off is full engine removal which could be dramatically more expensive.
Have you read this thread? A lot of info in there and a couple of the guys did measure rods and bearings. BMW spec'd the bearing to journals tighter than Mahle's recommendation for various reasons.
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post #19 of 826 Old 6th September 2013, 08:24 PM
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Quote:
Originally Posted by ACG View Post
My rods were measured (no kinky stuff MIGHTY) and they were still within tolerance.
2x for me too. I was within tolerance. Zero play, like we saw in Tony's engine autopsy.

~Woody

///M The ///Most Expensive Letter in the Alphabet
Driving Concepts Competition Racing School
s85 + (afterthought) 6mt =133,000 miles with no RCOD and counting ...just saying...

2007 e60 m5 6MT Interlagos Blue; DINAN 3.91 Exploded @8x,xxx ; Performance Gearing (Blanton) 3.91 LSD 3 clutch, 30/50 ramps, R&P polished ; RPi Oil Cooler/Scoops; DINAN High Flow Air Mass Meter/Intake, DINAN strut, DINAN Monoballs, FastAttack Tune, w/Kung Fu grip!, Einhorn Industries Race Jedders, track pipe, and x-pipe; DINAN Section 3, DINAN LTW 19x9 ET18, 19x10 ET25, Michelin PSS 255/40/19 and 295/35/19, Macht Schnell 15mm spacers (front); FERODO FRP3000H race pads; StopTech BBK 6/4 380mm/35mm x 380mm/32mm w/SS lines; RDSport F/R sways; CKS coils w/swift springs, -2.0/-2.5 F/R camber; z3 1.9L SSK, with f10 shifter; RedLine B/S RDR off, F/R G1W-H, ALP w/GPS and BT. SprintBooster v3; Euro MDM and DSC off. Fluids: Motul 7100 4T 10w60, Redline ShockProof Lightweight 75w140, Castrol SRF, Unicorn Jizz and Wolfpack Blood; Rod bearings replaced at 84,000 miles!!

1988 e28 m5 STROKER 420bhp 91 octane(Paul Burke s38b39); VAC LTW flywheel; MegaSquirt G2 DME; Euro RestoMod track car: caged, 6 point FIA harness, FIA Sabelt GT-160 seats...AC/heater, interior, sunroof, rear seat delete; Euro Headers, dump valve, and race cats; z3 1.9L ssk and ZHP shifter; custom Ground Control Coilovers/camber plates; Mason Engineering front/rear strut bars; Brembo 6/4 BBK; 17x8 BBS RK w/Dunlop StarSpec II; undergoing Euro restoration, building the sub 2,400lb e28 CSL ///Motorsport never built. 5.71lbs/hp

1996 FZJ 80; LOCKED; Factory TRD Supercharger; Expo/Overland/Backcountry Rig; custom sleeper/drawer system, full rock armor, 33"s on 2.5" OME Heavy Lift; Rigid LEDs F/R; 228,000 miles and counting.
2008 Audi A3 S-Line Quattro w/flappy paddles (Mammoth Mountain Commuter)
2000 e39 m5 TiAg (Gone, but not forgotten) sold 7/2014 to a good home.

The Indys that I trust for all my Beasts' needs: oceansidemotorsports.com my local physician for service autohausfrankfurt.com/ my local Dinan supplier trinityautosport.com my local drug dealer for my crack habit
fastattackmotorsports.com because JColley!

~I FRACKING!
~Viva La Wolfpack!
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post #20 of 826 Old 6th September 2013, 08:38 PM
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So after some reading it still appears that the clearances are too tight and the only way to reduce wear is to run thinner oil for the street and stick with 10W60 for the track. So technically, the only way to increase tolerances based on currently available bearing options is to machine the journals.

So my question to Paul would be, were your journals machined at all to accept higher clearances?

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RPI Scoops & Block Off Plates BMC Filters | Varrstoen ES1 20x10 20x11 Michelin SS | BC Racing Coilovers & Swift Springs | DINAN Section 3 Exhaust | LCI Tails Bruce V6.1 Cables | Matte Side and Front Grills | BSW Center Channel Speaker | Angel iBright V3 Angel Eyes | OEM iPod Interface

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