AH FabricationsVolks Autos
Results 1 to 3 of 3
  1. #1
    Blue_Thunder's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Feb 2007
    Location
    Liverpool
    Posts
    1,693

    Is pressurised air from oil filler on 1.8T normal?

    My sister's bloke has just bought himself a hairdresser's car, a B6 cabrio with a 1.8T. I assume this is the same 1.8T as the B5??

    Anyway, he knows feck all about cars and only picked it up yesterday and I took a look over it today. First thing I noticed was that the coolant reservoir was virtually empty. No smoke from the exhaust and no noticeable leaks from anywhere, a bit of a mystery. Next thing to check was to see if there was any gunk in the oil filler cap. Thankfully it was clear.

    Thing which concerned me was that there was air being blown from the oil filler when I removed the filler cap. I got him to rev the engine slightly and the pressure seemed to reduce. Does this indicate a problem such as a knackered one-way valve or is it just something as simple as a secondary air injection system?
    Mo power, mo problems

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    "Stick a V8 in it!"

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Glenrothes, Fife, Scotland
    Posts
    15,372
    Its probably just crankcase blowby?

    Most engines will blow some air out the oil cap with the engine running.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  4. #3
    6th Gear

    Status
    Offline
    Join Date
    Sep 2009
    Location
    Essex
    Posts
    2,366
    normal. just blow by. when you rev the engine, the pcv is having the blow by dragged out by the turbo into the intake systme

    crank case vacuum is a good thing

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO