EM TuningVolks Autos
Results 1 to 12 of 12
  1. #1
    S4_dan's Avatar
    Fire up the Quattro!

    Status
    Offline
    Join Date
    Jan 2006
    Location
    Somewhere in the Howardian Hills!
    Posts
    1,617

    Oil Breather pipework & Spark plugs....

    I've noticed a slight oil burning smell from engine bay and decided to remove the rockers and check the gaskets and re-seal them with a bit of gasket sealer with main gasket.

    During the removal I broke my extremely brittle breather pipe (again, already has 3 repairs to it!!) I noticed that the pipework from Bank 1 was full of gunked, mayo residue whilst the short pipe on Bank 2 was clear.

    The underside of the rockers were both clear and no residue anywhere to be seen. Both sides were dribbling a bit of oil onto the manifolds so hopefully that's now sorted.

    Why is there lots of white gunk? What harm will it do? I have cleaned it all out. I started the car and felt for any pressure/vacuum coming from the broken breather pipe from the TB, and there was nothing at all. Also, the same thing was with the breather coming from the rocker cover! Nothing.


    Also, I whipped out all the plugs whilst in there and found that cylinder three plug was wet and all the others were dark black but dry. Car hadn't been started since last night. I checked the resistance on the HT lead for both side. The lead with the wet plug measured 5.11 K ohms where the opposite plug lead only measured 5.03 K ohms.

    So I measured the two medium length leads and they were almost the same in resistance. Any one have any ideas if the higher resistance could be causing the missfire/hesistation?

    Cheers,

    Dan
    2002 2.5 V6 Quattro
    Mods Done: Q5 Rear aero wiper. Front ambient light install. Led number plate lens. Towbar with 13pin electrics.
    Mods to complete: Sport shocks to go with Eibach pro springs. Fit 17" 5 star matt black wheels. Fix lack of torque at low revs. Get a custom exhaust system fitted.

    FOR SALE - Eibach Pro Sport springs for a 2.5 V6 B6/7 PM ME.

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    audiv6quattro's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2010
    Location
    East sussex
    Posts
    392
    Hi can't really help you with the spark plugs but I have exactly the same mayoie kind of gunk in the left (as you look at the car) side breather hose, like it all the time and I've had no problems with it, there's no mayoie gunk on the oil filler cap ect so sure it is fine, I bet if you drive the car for half hour after cleaning pipes the gunk is back there, mine is.
    1996 A4 2.6 v6 quattro,love the car hate the cost!!

  4. #3
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,138
    The gunk is caused by condensation in the breathers mixing with the oil ive seen few vauxhalls suffer from this gunk too in the breather system if it blocks up it can cause the crankcase pressure to become high and can sometimes blow through the rocker seals.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  5. #4
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

    Status
    Offline
    Join Date
    Aug 2010
    Location
    Westhoughton, Bolton
    Posts
    3,138
    Also your plugs 0.8 ohms resistance isnt that much tbh sometines the multimeters csn be out a little if it was 1.5 ohms or more then maybe but it could also indicate that there may be some sort underlying fault ie corrosiono or breakage, try swapping the plug to a differant cylinder and see what you get then swap the leads round and plugs and see what happens.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  6. #5
    "Stick a V8 in it!"

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Glenrothes, Fife, Scotland
    Posts
    15,388
    Stick up a photo of the plug. Might be oil contamination?

    The mayo is condensation, and its caused by short journeys. I presume the car rarely gets a decent long run?

    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


  7. #6
    audiv6quattro's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2010
    Location
    East sussex
    Posts
    392
    Hi completely hijacking your thread I know sorry, bit of an embarrassing question really as its probably simple but how do you test resistance on the ht leads, eg where does the red wire and black wire go from the multimeter ect, never really used a multimeter before only to test battery voltage. Thanks
    1996 A4 2.6 v6 quattro,love the car hate the cost!!

  8. #7
    S4_dan's Avatar
    Fire up the Quattro!

    Status
    Offline
    Join Date
    Jan 2006
    Location
    Somewhere in the Howardian Hills!
    Posts
    1,617
    Quote Originally Posted by Bradderz_1988 View Post
    The gunk is caused by condensation in the breathers mixing with the oil ive seen few vauxhalls suffer from this gunk too in the breather system if it blocks up it can cause the crankcase pressure to become high and can sometimes blow through the rocker seals.
    Just re-sealed my rocker gaskets as I had a slight weep on both banks. Only slight though.

    Quote Originally Posted by Bradderz_1988 View Post
    Also your plugs 0.8 ohms resistance isnt that much tbh sometines the multimeters csn be out a little if it was 1.5 ohms or more then maybe but it could also indicate that there may be some sort underlying fault ie corrosiono or breakage, try swapping the plug to a differant cylinder and see what you get then swap the leads round and plugs and see what happens.
    I've moved the plug to cylinder 1 and will check again in a few days time. I've left the leads in the same order for now. Got a very expensive all singing and dancing multi-meter. Hooks with laptop and everything. Amazing piece of kit. The alleged +/- is very very low.

    Quote Originally Posted by aragorn View Post
    Stick up a photo of the plug. Might be oil contamination?

    The mayo is condensation, and its caused by short journeys. I presume the car rarely gets a decent long run?
    Oil contamination? As in oil passing my piston rings? Oh, and remember that blue smoke on startup? Well, it's stopped doing it?! How random is that?

    Only time my car does a short journey (2 mile) is when i leave the local pub, which isn't very often. Other than that, I only use the car to go work and back which is 14.5 miles each way.

    Quote Originally Posted by audiv6quattro View Post
    Hi completely hijacking your thread I know sorry, bit of an embarrassing question really as its probably simple but how do you test resistance on the ht leads, eg where does the red wire and black wire go from the multimeter ect, never really used a multimeter before only to test battery voltage. Thanks
    Take lead off the plug & coil. It doesn't matter which end you put red/black wire to test the wire. Put multi-meter onto ohms (Ω) and test. Your multi-meter might have different Ω values, mine ended up selecting KΩ.
    2002 2.5 V6 Quattro
    Mods Done: Q5 Rear aero wiper. Front ambient light install. Led number plate lens. Towbar with 13pin electrics.
    Mods to complete: Sport shocks to go with Eibach pro springs. Fit 17" 5 star matt black wheels. Fix lack of torque at low revs. Get a custom exhaust system fitted.

    FOR SALE - Eibach Pro Sport springs for a 2.5 V6 B6/7 PM ME.

  9. #8
    "Stick a V8 in it!"

    Status
    Offline
    Join Date
    Jan 2008
    Location
    Glenrothes, Fife, Scotland
    Posts
    15,388
    Yeh, oil either passing the rings or leaking down the valve stem oil seals.

    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


  10. #9
    S4_dan's Avatar
    Fire up the Quattro!

    Status
    Offline
    Join Date
    Jan 2006
    Location
    Somewhere in the Howardian Hills!
    Posts
    1,617
    When I check the plugs again at the weekend, if its still wet, i'll post a pic.
    2002 2.5 V6 Quattro
    Mods Done: Q5 Rear aero wiper. Front ambient light install. Led number plate lens. Towbar with 13pin electrics.
    Mods to complete: Sport shocks to go with Eibach pro springs. Fit 17" 5 star matt black wheels. Fix lack of torque at low revs. Get a custom exhaust system fitted.

    FOR SALE - Eibach Pro Sport springs for a 2.5 V6 B6/7 PM ME.

  11. #10
    audiv6quattro's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Dec 2010
    Location
    East sussex
    Posts
    392
    Thanks for that dan stupidly easy I feel stupid now lol, but anyway just checked my leads (well 3 of them) numbers 4 5 &6 and 5,6 is showing 6.32 and number 4 is 6.41 again sorry to hijack your thread but is my multimeter broke or are these readings extremely high, compared to your readings they seem high,
    1996 A4 2.6 v6 quattro,love the car hate the cost!!

  12. #11
    6th Gear

    Status
    Offline
    Join Date
    Aug 2010
    Posts
    1,540
    the plugs will be black in colour with short journeys. 14.5 miles isnt really a short journey tho. hmmm wierd.

    the plug thats wet. is it oil or fuel? have you moved that plug to a different cylinder then?
    if you have no luck and the number 3 plug looks wet again. id move the injector see if the wetness follows the move.

  13. #12
    S4_dan's Avatar
    Fire up the Quattro!

    Status
    Offline
    Join Date
    Jan 2006
    Location
    Somewhere in the Howardian Hills!
    Posts
    1,617
    Quote Originally Posted by audiv6quattro View Post
    Thanks for that dan stupidly easy I feel stupid now lol, but anyway just checked my leads (well 3 of them) numbers 4 5 &6 and 5,6 is showing 6.32 and number 4 is 6.41 again sorry to hijack your thread but is my multimeter broke or are these readings extremely high, compared to your readings they seem high,
    Not sure. How old are your HT leads? Could be due to different materials used in the leads or a difference in the age of the leads. Need to find what new leads should read. The length of the lead will also show a different reading.

    Quote Originally Posted by murran View Post
    the plugs will be black in colour with short journeys. 14.5 miles isnt really a short journey tho. hmmm wierd.

    the plug thats wet. is it oil or fuel? have you moved that plug to a different cylinder then?
    if you have no luck and the number 3 plug looks wet again. id move the injector see if the wetness follows the move.
    Just looked a bit 'carboned' up to be honest. The wet smelt like fuel but they are going to smell of fuel either way. Yes I've moved that plug to cylinder 1, and will check if cyl 3 plug is now wet at the weekend.

    One thing I have noticed since all of this, is that the hesitation is now very very light indeed and now without the 'pops' in the exhaust. In fact, I struggle to feel/notice when it's doing it now.

    How strange?!?!?!
    2002 2.5 V6 Quattro
    Mods Done: Q5 Rear aero wiper. Front ambient light install. Led number plate lens. Towbar with 13pin electrics.
    Mods to complete: Sport shocks to go with Eibach pro springs. Fit 17" 5 star matt black wheels. Fix lack of torque at low revs. Get a custom exhaust system fitted.

    FOR SALE - Eibach Pro Sport springs for a 2.5 V6 B6/7 PM ME.

 

 

Similar Threads

  1. Oil covered spark plugs
    By sekenzo in forum A3/S3 Forum (8L Chassis)
    Replies: 5
    Last Post: 2nd October 2011, 11:56
  2. oil change and spark plugs
    By 0morg in forum A3/S3/Sportback (8P Chassis)
    Replies: 1
    Last Post: 6th July 2011, 14:24
  3. Oil around spark plugs
    By X30 in forum A4/A4 cabriolet/S4 forum(B6 chassis)
    Replies: 8
    Last Post: 16th December 2010, 19:11
  4. 4 Spark Plugs & 4 Coil Packs Later...Car Still Stuttering
    By Tekin in forum A3/S3 Forum (8L Chassis)
    Replies: 26
    Last Post: 17th June 2008, 22:18
  5. spark plugs and oil
    By bmwisport in forum A3/S3 Forum (8L Chassis)
    Replies: 4
    Last Post: 24th January 2008, 23:17

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