More Help Please Mercedes C43 W202 Viscous fan nut which way to undo

Discussion in 'Engine' started by waisal, Oct 10, 2016.

  1. waisal

    waisal Member

    Messages:
    38
    Joined:
    Jan 31, 2016
    Location:
    North West
    Car:
    W202 C43 AMG
    Hello
    I have been trying for days to undo the Viscous fan clutch nut I have the holding tool and 36mm spanner but I am struggling.
    If I am facing the car which way to unlock the nut clockwise towards passenger side or anticlockwise drivers side
    I have also tried shocking it with hammer blows WD40 etc but still stuck tight

    Sent from my SM-G935F using Tapatalk
     
  2. grober

    grober MB Club Veteran

    Messages:
    27,026
    Joined:
    Jun 22, 2003
    Location:
    Perth, Scotland
    Car:
    W204 C200CDI Estate
    If the castellations have a cut/groove then its a LEFT HAND THREAD.
    [​IMG]
     
  3. OP
    OP
    waisal

    waisal Member

    Messages:
    38
    Joined:
    Jan 31, 2016
    Location:
    North West
    Car:
    W202 C43 AMG
    [​IMG]
    Left Hand Thread?

    Sent from my SM-G935F using Tapatalk
     
  4. streethawk

    streethawk Hardcore MB Enthusiast

    Messages:
    1,017
    Joined:
    Jun 27, 2011
    Location:
    leicester
    Car:
    E320cdi sport
    Left hand thread tightens anti clockwise and loosens clockwise .
     
  5. kid-jensen

    kid-jensen Hardcore MB Enthusiast

    Messages:
    1,140
    Joined:
    Dec 16, 2002
    Location:
    Epsom Downs
    Car:
    ML 320 W164
    You can normally tell a left hand thread, because it just looks wrong.....

    Every viscous fan I've worked on was left-handed, but I'm sure there are exceptins...

    German Engineers like to keep you guessing.
     
  6. chubbs111

    chubbs111 Hardcore MB Enthusiast

    Messages:
    493
    Joined:
    Apr 8, 2011
    Location:
    ledbury
    Car:
    clk270cdi
    my 202 was a normal thread so as you look from the front turn the spanner from 12 oclock to 9 oclock
     
  7. OP
    OP
    waisal

    waisal Member

    Messages:
    38
    Joined:
    Jan 31, 2016
    Location:
    North West
    Car:
    W202 C43 AMG
    Thanks everyone it was normal thread! removed anti clockwise when facing the car
    SOB did not want to move had to wedge he pulley holder tool against cross member and jam on a slightly smaller spanner and hit with a lump hammer after about 5 hits finally shifted.
    Normal 36mm fan spanner was just rounding off the nut.

    Sent from my SM-G935F using Tapatalk
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.