Results 1 to 3 of 3

Thread: E34 520i m50 non vanos Oil Leak

  1. #1
    Join Date
    Feb 2015
    Posts
    12

    E34 520i m50 non vanos Oil Leak

    Hi,

    I have an oil leak between gearbox and engine block so rear of engine.
    It doesn't seem to leak when the car is off. only when running more so when revving.

    I first thought the Oil pan gasket was the culprit but it would leak when engine is off if that was the case?

    Would it be the rear main seal? or is there anything else to check first?

    Definitely engine oil leaking not gearbox oil or power steering fluid.

    Thanks.

  2. #2
    Join Date
    Feb 2017
    Location
    Minneapolis, Minnesota
    Posts
    244
    My Cars
    1995 BMW 525i/5
    Trace it up if you can. It's possible it's even as high as the valve cover gasket, which is a much easier fix than a rear main. They're prone to leaking at the half moons at the rear of the head.

    Sent from my Pixel 4 XL using Tapatalk
    '95 E34 525i, M52B28 (Cutring & Spacer, ARP, S52 Cams), GTW3684R 0.82A/R, ZF320

  3. #3
    Join Date
    Feb 2015
    Posts
    12
    Hi,

    Thanks for the response, would it only leak when under load though?
    Revs go up and down on idle too from 1k rpm to 500rpm feel like there maybe too much pressure building in crankcase?
    Would the 2 be related?

Similar Threads

  1. M50 Non-Vanos oil filter housing leak
    By RedmonCooper887 in forum 1988 - 1996 (E34)
    Replies: 1
    Last Post: 09-28-2018, 01:09 AM
  2. E34/E36 M50 Non Vanos Harness - No Longer Available
    By SejRamkas in forum Engines, Performance Parts & Software
    Replies: 1
    Last Post: 01-20-2015, 03:06 PM
  3. Replies: 8
    Last Post: 09-23-2011, 09:31 PM
  4. FS 1992 E34 525i M50 non-vanos
    By Bolidoendiablad in forum New England - US
    Replies: 4
    Last Post: 03-23-2009, 04:26 PM
  5. Replies: 8
    Last Post: 04-08-2008, 05:55 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •