Results 1 to 3 of 3

Thread: 'catch can' ... oil drips, E93, N54

  1. #1
    Join Date
    May 2017
    Location
    Ontario, Canada
    Posts
    512
    My Cars
    335i E93 N54

    'catch can' ... oil drips, E93, N54

    I may totally embarrass myself here with this question...

    I've read a couple times in passing something about a 'catch can' or similar.
    I may recall the wording/term incorrectly - which may be why my searches didn't turn up anything obvious.

    In reading several times about our valve cover leaking oil, and mine doing the same, I thought I'd look into this.
    Is this a common enough problem that people actually put some sort of catch can or tray under a certain area so avoid driveway drips or drips on the manifold (or other hot areas)?

    My car does leak, from there and from the oil filler sleeve area.
    Usually I don't smell anything, but about once per day I get a waft of oil, strong, for a couple minutes and then it's gone again.

    I'll look into changing the valve cover seals, but not in the immediate.

    Thanks!

  2. #2
    Join Date
    Apr 2017
    Location
    Myrtle Beach
    Posts
    36
    My Cars
    2009 335i
    The leaking valve cover gasket and oil filter housing is a common problem. A catch can is not used to catch oil leaking from these areas though. You should think about fixing the leak at the oil filter housing as the oil can leak down and saturate your serpentine belt and cause it to slip and or fail. It is a fairly easy fix. The valve cover gasket is a much bigger job, not really technically difficult, just time consuming with some hard to reach bolts. Look for DIY's here, there are several that will be extremely helpful.

  3. #3
    Join Date
    Jan 2007
    Location
    .
    Posts
    7,708
    My Cars
    .
    A catch can is a device that goes inline with the crankcase ventilation system. It is designed to catch the oil vapors that are in the system to prevent the oil from getting back into the intake tract. The idea is that the inside of the pipes stay cleaner, and help reduce the carbon deposits on the back of the intake valves. Someone can correct me if I'm wrong, but I think that's the gist of it.
    ASE and BMW Master Certified Technician

Similar Threads

  1. Replies: 0
    Last Post: 01-19-2016, 08:49 PM
  2. my Catch Can Oil setup
    By jdjg in forum 1996 - 2003 (E39)
    Replies: 0
    Last Post: 04-22-2013, 08:57 AM
  3. Jlevi SW | BSH N54 Oil Catch Can
    By Edison@Jlevi SW in forum Group Purchases & Supporting Vendor Specials presented by eBay
    Replies: 0
    Last Post: 05-10-2010, 04:35 PM
  4. Oil Catch Can--oil usage
    By Poolman in forum 1996 - 2003 (E39)
    Replies: 11
    Last Post: 02-09-2010, 07:13 PM
  5. Jlevi SW | AR Design Oil Catch Can for N54 engines
    By Bryan@Jlevi SW in forum Group Purchases & Supporting Vendor Specials presented by eBay
    Replies: 1
    Last Post: 01-26-2010, 06:12 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
  •