Results 1 to 6 of 6

Thread: Pulley / Bearing Noise

  1. 27th January 2015, 07:12 PM #1
    carldjohnston
    carldjohnston is offline Fossicker
    Join Date
    May 2013
    Location
    Brighton, Victoria
    Posts
    52
    Total Downloaded
    0

    Pulley / Bearing Noise

    Hi All,

    Just after some advice as to what this noise may be; coming back from a camping trip I noticed this strange noise, made it home thankfully, and now trying to diagnose.

    I suspect it's either the power steering pump, water pump, or viscous fan bearing.

    Here's what I've gathered:
    - Belt off the noise is totally gone
    - The noise appears to be louder from the power steering pump side
    - The idler and tensioner bearings are smooth
    - The AC clutch bearing seems fine is also smooth
    - There is a slight noise in the viscous fan bearing
    - There is some play in the power steering pump, but I don't know how much is normal - I think I'm feeling slack in the water pump drive
    - The Crankshaft Pulley/Damper appears to be ok, there is a ~1mm forward/aft movement (with a screwdriver) and about <2mm rotational movement; the whole thing feels solid, the outer ring isn't touching the inner ring.

    [ame]http://www.youtube.com/watch?v=H6apzfjbpFY[/ame]

    Any ideas??

    Thanks, Carl
    Reply With Quote Reply With Quote
  2. 27th January 2015, 07:34 PM #2
    nismine01's Avatar
    nismine01
    nismine01 is offline Master
    Join Date
    May 2012
    Location
    Adelaide Hills, SA
    Posts
    564
    Total Downloaded
    0
    It might sound ridiculous but spray the belt with something, belt grip, soap or even a CRC type product.

    I have known belts to make the most horrible metallic noises, unbelievable.

    Could get lucky.

    Mike
    Reply With Quote Reply With Quote
  3. 27th January 2015, 07:41 PM #3
    carldjohnston
    carldjohnston is offline Fossicker
    Join Date
    May 2013
    Location
    Brighton, Victoria
    Posts
    52
    Total Downloaded
    0
    Quote Originally Posted by nismine01 View Post
    It might sound ridiculous but spray the belt with something, belt grip, soap or even a CRC type product.

    I have known belts to make the most horrible metallic noises, unbelievable.

    Could get lucky.

    Mike
    Thanks Mike,

    I actually fitted a new belt to rule that out; tried WD40 on the idler bearing and AC clutch too, but didn't want to spray the belt.

    Cheers, Carl
    Reply With Quote Reply With Quote
  4. 27th January 2015, 07:46 PM #4
    bblaze
    bblaze is offline Wizard Subscriber
    Join Date
    Apr 2007
    Location
    NW Tassie
    Posts
    1,884
    Total Downloaded
    0
    just spray some water on the beelt and if the cause it will stp
    cheers
    blaze
    Reply With Quote Reply With Quote
  5. 27th January 2015, 08:07 PM #5
    Milton477's Avatar
    Milton477
    Milton477 is offline Wizard Silver Subscriber
    Join Date
    Jan 1970
    Location
    Kallangur, Brisbane
    Posts
    1,078
    Total Downloaded
    0
    Recently had the same noise so I replaced the harmonic balancer as it showed the same wear as yours. Put everything back together again & hey presto, the noise was still there. Changed the steering pump - noise gone.
    + 2016 D4 TDV6
    Reply With Quote Reply With Quote
  6. 29th January 2015, 12:37 PM #6
    carldjohnston
    carldjohnston is offline Fossicker
    Join Date
    May 2013
    Location
    Brighton, Victoria
    Posts
    52
    Total Downloaded
    0
    After some spannering the noise is now gone!

    I ended up changing the Power Steering Pump for a second hand unit, and replaced the Viscous Fan Bearing while I was in there. The bearing was average, but I think the noise was from the Power Steering Pump.

    Thanks for your help!
    Reply With Quote Reply With Quote
« TD5, replacing welch plug | Discovery D2a Lens Cleaner »

Bookmarks

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
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!