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Cleaning a CV joint

  • 10-11-2015 1:39pm
    #1
    StereoSound
    Registered Users, Registered Users 2 Posts: 2,155 ✭✭✭


    I'm about to replace a CV boot, how do I clean out the old grease out of the joint? Blast it with wd40?


Comments

  • #2
    biko
    Registered Users, Registered Users 2 Posts: 81,220 ✭✭✭✭biko


    Nah, WD40 won't do the job.
    Use paper towels, then lint free rags and then brake cleaner.
    Wait for it to dry first before you assemble, brake cleaner doesn't leave residue


  • #3
    aujopimur
    Registered Users, Registered Users 2 Posts: 3,953 ✭✭✭aujopimur


    A spoon is handy for this.


  • #4
    dooroy
    Registered Users, Registered Users 2 Posts: 576 ✭✭✭dooroy


    If you have engine cleaner you could work it into the joint with a brush - having first removed as much grease as you can . Having let the cleaner soak a bit you can then give it a good blast of water from a hose - and also ensure its well dried out .
    If boot has been gone for a while there may be very little grease left in it anyhow.


  • #5
    landmarkjohn
    Registered Users, Registered Users 2 Posts: 705 ✭✭✭landmarkjohn


    biko wrote: »
    Nah, WD40 won't do the job.
    Use paper towels, then lint free rags and then brake cleaner.
    Wait for it to dry first before you assemble, brake cleaner doesn't leave residue

    I probably wouldn't use any solvent at all, just the rags, if any solvent does get left in the joint it will only downgrade the grease and you will have a rattly joint in no time (well that's what happened on our 205)


  • #6
    Mark74
    Registered Users, Registered Users 2 Posts: 34 ✭Mark74


    landmarkjohn wrote: »
    I probably wouldn't use any solvent at all, just the rags, if any solvent does get left in the joint it will only downgrade the grease and you will have a rattly joint in no time (well that's what happened on our 205)

    i could never get cv joints to last long in my 205.! and agreed, best to just clean out without solvent.


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  • #7
    biko
    Registered Users, Registered Users 2 Posts: 81,220 ✭✭✭✭biko


    Brake cleaner is good as it cleans the metal down to metal, and leaves no residue.
    I suppose you can just use rags and leave a little of the old grease behind, probably won't hurt any, but I'd rather get all old gunk out before greasing it up again. That's me though.


  • #8
    dooroy
    Registered Users, Registered Users 2 Posts: 576 ✭✭✭dooroy


    I have been using the degreaser and wash out with a jet of water method for many years and joints went on for many many miles in a lot of cars without any problem.
    The amount of solvent left behind would IMHO have little effect on how long the joint lasts.
    I like to make sure that all forms of grit are removed (and any spots of old grease could have grit in it ) as this would certainly combine with the new grease to form a grinding paste.
    How long a joint lasts after having a boot replaced may have little to do with the cleaning method - the joint could have been on its way out anyway.


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