Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Intermittant viscous failure?

  1. 31st December 2011, 12:44 PM #1
    superquag
    superquag is offline ForumSage
    Join Date
    Aug 2007
    Location
    Gosnells
    Posts
    6,148
    Total Downloaded
    0

    Intermittant viscous failure?

    '95 RRC.
    Last Saturday morning I had a couple of random temperature rises. Temp gauge was normal, then suddenly started climbing towards the top. Each time (3x) I noticed it and shut down the air-con, stopped, popped the engine hatch and ran at a fast idle for 3 to 5 minutes.

    Previously I'd been crawling up some rock tracks, a/c off (windows open) with no problems, the first time was on a 60km/h gravel track.
    Yet idling for 15 minutes with air-con was fine...
    Yes, it was around 38 to 40 degrees.

    Does this sound like the viscous fan hub ? - Or the condensor fans switching off for no good reason... - Possibly jealous of my attention being lavished on the fuel-tank leak, the reason for cutting shrt my little trip...

    Or maybe its decided to go out in sympathy with the other viscous coupling....
    Reply With Quote Reply With Quote
  2. 2nd January 2012, 10:51 PM #2
    swivelrat
    swivelrat is offline Fossicker Subscriber
    Join Date
    Oct 2011
    Location
    Sawyers Valley
    Posts
    47
    Total Downloaded
    0

    suspect viscous coupling fan

    Mate, I have a 95 130 TD4 which was having heating issues coming home up greenmount Grt Eastern Hwy each day, oil pressure dropping, temp getting almost into the red even on a cool day, mind you I dont take it easy maintaining 90km/hr in 5th. Anyway, ended up biting the bullet, replaced radiator, water pump, thermostat, and hoses only to have same issue. Much concern thinking the head was stuffed, I thought I better try the viscous fan. $300 and a five minute job and havent had an issue since. Do it before the rest I say.
    Reply With Quote Reply With Quote
  3. 4th January 2012, 09:42 AM #3
    chazza
    chazza is offline YarnMaster
    Join Date
    Dec 2006
    Location
    Narrogin WA
    Posts
    3,092
    Total Downloaded
    0
    If it cools down rapidly with the load off, or an increase in speed, then it is a good bet that the thermostat and radiator are working well.

    I agree with Swivel; change the viscous coupling. If it is working properly you will hear it come on even at high road speed. If you haven't heard a roaring noise yet, then it isn't working,

    Cheers Charlie
    Reply With Quote Reply With Quote
  4. 4th January 2012, 03:49 PM #4
    superquag
    superquag is offline ForumSage
    Join Date
    Aug 2007
    Location
    Gosnells
    Posts
    6,148
    Total Downloaded
    0
    Did it again yesterday. Once more, with the air-con running (warm day) and around 80km/h with the breeze on the port quarter which may or may not have a bearing on things...
    Turned off the A/c, and it soon made its way down to normal, re-engage the A/c and the gauge started moving up... turn it off and back down. Pretty conclusive the A/c is heating things too much.

    Nope, did'nt notice any roaring...above the road/engine noise, though I'm 51%confident the twin condensor fans come on with the A/c. - They do with the IGN & A/c switch ON and engine not running.
    They're also supposed to be triggered by high coolant temp as well, sort of 'extra' air supply for the radiator even when the A/c is not in use.

    Now that you mention it, when I drove off this morning, there was no fan roar as it normally does for several seconds...
    -- I suspect you're both right...

    Anyway, measured the nut and its 36 mm. (The one between the VC and the pulley, behind the fan, the other nut is 102cm.)

    I still reckon its going out in sympathy with the transfer case VC....
    Reply With Quote Reply With Quote
  5. 4th January 2012, 05:12 PM #5
    Blknight.aus's Avatar
    Blknight.aus
    Blknight.aus is offline RoverLord Vendor
    Join Date
    Aug 2006
    Location
    Melbourn(ish)
    Posts
    26,505
    Total Downloaded
    0
    viscous couplings can fail intermittantly its to do with either oil loss or degredation of the internal workings over time.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    Tdi autoManual d1 (gave it to the Mupion)
    Archaeoptersix 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.
    Reply With Quote Reply With Quote
  6. 4th January 2012, 09:18 PM #6
    superquag
    superquag is offline ForumSage
    Join Date
    Aug 2007
    Location
    Gosnells
    Posts
    6,148
    Total Downloaded
    0
    Reckon its the silicon degrading with age/use/owner's disposable income...

    Does anyone know if a viscous from a 300 Tdi is the same as the serpentine - 3.9 V-8 ? -I've been offered one. Owner assures me it has a 36mm nut.... - Much appreciated, though there's no point in me having it IF it's not the same! - Even I draw the line at pointless hoarding. Sometimes.

    James in Gosnells

    1995 Vogue SE Classic, 3.9 V8 with working Air-suspension, and 2WD...
    Reply With Quote Reply With Quote
  7. 4th January 2012, 09:21 PM #7
    justinc's Avatar
    justinc
    justinc is offline Swaggie Vendor
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,728
    Total Downloaded
    0
    V8 serpentine engine is RH thread, tdi is LH thread. Also, Tdi is a smaller 32mm nut.

    JC
    Reply With Quote Reply With Quote
  8. 4th January 2012, 09:51 PM #8
    milld's Avatar
    milld
    milld is offline Master
    Join Date
    Jun 2010
    Location
    Rockhampton, Queensland
    Posts
    414
    Total Downloaded
    0
    Good for the v belt motor then
    Reply With Quote Reply With Quote
  9. 4th January 2012, 10:12 PM #9
    justinc's Avatar
    justinc
    justinc is offline Swaggie Vendor
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,728
    Total Downloaded
    0
    Quote Originally Posted by milld View Post
    Good for the v belt motor then
    Certainly, ERR2266 is the part you are after
    ERR3443 is the V8 serp model fan clutch, ERR4996 is the P38a one whichh WILL fit the D1 V8 BUT will almostr never freewheel as it is used to drive a huge fan.

    JC
    Reply With Quote Reply With Quote
  10. 5th January 2012, 12:58 AM #10
    LOVEMYRANGIE's Avatar
    LOVEMYRANGIE
    LOVEMYRANGIE is offline YarnMaster
    Join Date
    Feb 2008
    Location
    Northern Windowlickersville WA
    Posts
    3,403
    Total Downloaded
    0
    James, if it's the same as the V8 per serpentine, I have an almost new one here. Came off after I did the thermo conversion and had only been on for about 6 or so months after being replaced from a close encounter of the Skippy kind.
    Has the fan blade on it however I did drop it and broke the blade but the hub is fine. Genuine unit too.
    Has the number on it, will have a look.

    Andrew
    Edit: ETC1260 hub, AMG001 blade.

    Using Capitals, the difference between helping your Uncle Jack off a horse or helping your uncle jack off a horse...
    Reply With Quote Reply With Quote
Page 1 of 2 12 LastLast
« Tandem Suspension Concept | Cleaning smoke smell out of D1 »

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!