Vavle stem seals checking
  • Register
  • Help
Results 1 to 10 of 10
  1. #1
    Fellow Frogger!
    Join Date
    Feb 2001
    Location
    Sydney
    Posts
    493

    Vavle stem seals checking

    I found this on another site, would the same for every car? inc my little 205?
    ----
    A simple test that might reveal whether it is valves or rings:
    Warm the car up and hold it at moderate rev's (4-5k should be heaps. Don't worry, you won't hurt it), for a few seconds and the exhaust is clear. Abruptly take your foot off the gas and check for a sudden cough of smoke from the exhaust.
    ---

    Advertisement


    cheers,

    joey

  2. #2
    Fellow Frogger! two-oh-philic's Avatar
    Join Date
    Feb 2003
    Location
    Glen Waverley, Melbourne
    Posts
    419
    So which is which
    205 GTi (S2 ) rolled

    '96 306XR "Sex" Black

  3. #3
    1000+ Posts Rod Hagen's Avatar
    Join Date
    Nov 2001
    Location
    Melbourne
    Posts
    1,640
    I would think so Pugsly. The production of smoke with sudden back off after higher speed running is a pretty commonly recognised dign of valve guide / stem seal problems. With rings you tend to get blue smoke under load instead.

    Cheers

    Rod

    <small>[ 16 August 2003, 05:50 PM: Message edited by: Rod Hagen ]</small>
    Rod's Home Page

    Rod's car page

    Peugeot 4008 2016Peugeot 407 SV HDi estate 2008, Peugeot 407 SV Hdi Sedan 2006, (deadish), - Previously 403s, 404, 504, 505 sLI Wagons, 406 ST 1997, 307 XSE, 306 XSi, Renault 12, Citroen DSpecial

  4. #4
    Moderator Alan S's Avatar
    Join Date
    Mar 2001
    Location
    Queensland, Australia
    Posts
    8,923
    If you're a bit "iffy" about the holding at the higher revs, another trick is to just point it down a hill & back off halfway down & gently accellerate when you're near the bottom; same result, big cloud of blue smoke = valve stems.
    As a rough rule of thumb, if she smokes going uphill it's rings & downhill valve stem seals.

    Alan S
    If it ain't broke, use a 12" shifter.....that usually does the trick!!

  5. #5
    Gone Fishin' Ray Bell's Avatar
    Join Date
    Jun 2001
    Location
    Burpengary and Murrumburrah, Qld and NSW
    Posts
    9,223
    And along the flat?

    Naturally that's a rocker cover gasket leaking onto the exhaust pipe...

  6. #6
    Moderator Alan S's Avatar
    Join Date
    Mar 2001
    Location
    Queensland, Australia
    Posts
    8,923
    Ray Bell:
    And along the flat?

    Naturally that's a rocker cover gasket leaking onto the exhaust pipe...
    That'd depend on whether the car was going forard or backards at the time wouldn't it?

    Alan S roll_lau roll_lau roll_lau
    If it ain't broke, use a 12" shifter.....that usually does the trick!!

  7. #7
    Budding Architect ???? pugrambo's Avatar
    Join Date
    Jul 2000
    Location
    Parkes - N.S.W - Australia - Earth
    Posts
    12,265
    Ray Bell:
    And along the flat?

    Naturally that's a rocker cover gasket leaking onto the exhaust pipe...
    see if you had a PRV in there ray the rocker covers don't tend to leak so there you alleviate the oil on the exhaust problem
    3 x '78 604 SL

    1 x 2018 3008

    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

  8. #8
    Gone Fishin' Ray Bell's Avatar
    Join Date
    Jun 2001
    Location
    Burpengary and Murrumburrah, Qld and NSW
    Posts
    9,223
    Originally posted by Alan S
    <strong>That'd depend on whether the car was going forward or backards at the time wouldn't it?
    Turning left or right is more appropriate...

    Actually, the only time I had a real problem with this was when I had a broken bolt in mine a bit over a year ago.

    That left how many? Let me see now... one!

  9. #9
    Fellow Frogger!
    Join Date
    Feb 2001
    Location
    Sydney
    Posts
    493
    thanks all

  10. #10
    1000+ Posts Rod Hagen's Avatar
    Join Date
    Nov 2001
    Location
    Melbourne
    Posts
    1,640
    Ray Bell:
    And along the flat?

    Naturally that's a rocker cover gasket leaking onto the exhaust pipe...
    And if it happens with your foot on the brake, regardless of other things, its a a dieing master cylinder dripping onto the exhaust pipe and running into a loose join before the first muffler.

    Quite spectacular, this one, on occasion.

    Cheers

    Rod
    Rod's Home Page

    Rod's car page

    Peugeot 4008 2016Peugeot 407 SV HDi estate 2008, Peugeot 407 SV Hdi Sedan 2006, (deadish), - Previously 403s, 404, 504, 505 sLI Wagons, 406 ST 1997, 307 XSE, 306 XSi, Renault 12, Citroen DSpecial

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

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