E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Another oil Leak - Sump or Crank Seal?



Reply
 
Thread Tools Search this Thread
      08-26-2013, 06:36 AM   #1
Josh1a1h
Banned
United Kingdom
170
Rep
3,828
Posts

Drives: AzuriteBlack 335i E92
Join Date: Aug 2011
Location: Central North to West London

iTrader: (2)

Another oil Leak - Sump or Crank Seal?

Hi Guys,

PLEASEPLEASEPLEASE really need some help from the wise!:conf used2

I have been having a very slow leak for a long while! I was usually topping up with oil once ever 3-4 months.

But all of a sudden it has gotten worse.

My local is really good to me. allowed me to put the car up on the ramp and try and isolate it...

It is coming from the back of the engine where it meets the tranny...

it could be the sump, but it could also be the crank seal...

Is anyone aware of this happening? The usual you hear of are the rocker cover and oil filter housing...

Here are some pics and sorry if they are not very helpful...

You can see that we washed all the old oil away... so what you see is fresh, from running the engine on the spot at 2500rpm for 5 minutes.







Appreciate 0
      08-26-2013, 09:58 AM   #2
Phil325i
Brigadier General
Phil325i's Avatar
United Kingdom
612
Rep
3,186
Posts

Drives: E92 325i MSport Coupe
Join Date: Apr 2012
Location: UK South East

iTrader: (1)

Garage List
Looks like engine oil rather than tranny fluid. My guess would be crank seal - can't see much evidence from your pics of anything leaking from the sump pan gasket.
__________________
E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
Appreciate 0
      08-26-2013, 10:05 AM   #3
Josh1a1h
Banned
United Kingdom
170
Rep
3,828
Posts

Drives: AzuriteBlack 335i E92
Join Date: Aug 2011
Location: Central North to West London

iTrader: (2)

I know it is a tranny off job... But what sort of labour and costs are involved do yu think?
Appreciate 0
      08-27-2013, 02:59 AM   #4
Dr Dave
Zummerzet Zyder Drinker!
United Kingdom
111
Rep
5,541
Posts

Drives: '06 330D Le Mans Blue
Join Date: May 2009
Location: Somerset

iTrader: (3)

Garage List
Looks to be coming from further up on top of the engine to me, crank rear seals don't tend to cover the transmission mounting webs (on the engine) in engine oil.

I'd work from the top down.
__________________
Appreciate 0
      08-27-2013, 12:14 PM   #5
Josh1a1h
Banned
United Kingdom
170
Rep
3,828
Posts

Drives: AzuriteBlack 335i E92
Join Date: Aug 2011
Location: Central North to West London

iTrader: (2)

i will get my mech to have another look. We did use a snap on camera thing to get up into the cracks to see what was happening up there
Appreciate 0
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



All times are GMT -5. The time now is 08:15 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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