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Thread: Fg xr6t diff noises clunks and the likes

  1. #1
    Validated User Stav's Avatar
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    Fg xr6t diff noises clunks and the likes

    I bought the car last june and it had warranty till october.. The diff bushes had been changed then a month later they said they were broken again..OK. So they did all of them but I had never looked for myself.After a few weeks the back end was noisy again...I dont drive the car hard and assumed the bushes were shagged again. Lately the clunking has gotten very bad and I have been thinking a balljoint or something silly like that.
    Today I got the courage to give the lsd diff oil change and inspect the diff bushes..well the main one was perfect and the others showed no sign of problems. I found the plug to pump oil back in on the side of my sedan facing the drivers side.It was like a allen key type bolt. The drain plug was at the bottom and my attempts to remove it showed signs of the beggining of burring the 15mm bolt so I stopped.
    It miffed me that it didnt come off so instead I jacked it up higher overfilling the diff with 1 litre of fresh oil. Then put the drain plug in to stop the excess oil from coming out. I then proceeded to drive the car with overfilled diff for 15 minutes then went home jacked up the back end removed the bolt and the fluid gushed out dark grey. To allow more filth to come out I lowered the jack to ground level and allowed the oil to drain out of the filler hole. Once stopped I grabbed the second 1 litre bottle and my hand pump to overfull again. Plugged the hole drove again and was surprised that 99 percent of clunks and noises dissappeared. I used to get big clunks putting the car in reverse or drive but now it seems to quietly engage with no clunking...Drained the excess oil onground level which is the correct level for the diff then pur the plug in finally and it drives so much better and quieter..
    Posted my expereince because Im blown away by the difference of this..cheers
    Stav
    Last edited by Stav; 25th April 2012 at 07:12 PM.

  2. #2
    Thanks for that Stav. The importance of good lubrication should never be underestimated.
    Make sure the gearbox gets done too.

    Daz I once sat beside a professor of chemistry on a plane back from Cairns. We got talking about
    lubrication and then I mentioned Molybdenum Disulphide to which she said there was no such beast. I said well that's bad luck lady cos it does and its bloody good stuff.
    “…The lies (Western slander) which well-meaning zeal has heaped round this man are disgraceful to ourselves only…How one man single-handedly, could weld warring tribes and wandering Bedouins into a most powerful and civilized nation in less than two decades….A silent great soul, one of that who cannot but be earnest. He was to kindle the world; the world’s Maker had ordered so." - Thomas Carlyle

  3. #3
    Validated User Scott's Avatar
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    Love that post Daz, remember having a great laugh first time I saw it

  4. #4
    Quote Originally Posted by Falc'man View Post
    Thanks for that Stav. The importance of good lubrication should never be underestimated.
    Make sure the gearbox gets done too.

    Daz I once sat beside a professor of chemistry on a plane back from Cairns. We got talking about
    lubrication and then I mentioned Molybdenum Disulphide to which she said there was no such beast. I said well that's bad luck lady cos it does and its bloody good stuff.
    Ain't Molybdenum Disulphide the same as saliva molecularis

  5. #5
    Validated User Stav's Avatar
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    Dazzler you crack me up mate
    Falcman the auto can be done at home too by removing lower transmission line to radiator into bucket and feeding oil through until it comes clean. In thinking of doing this myself if its not too hard

  6. #6
    Quote Originally Posted by chazza347 View Post
    Ain't Molybdenum Disulphide the same as saliva molecularis
    No I didn't think it was.
    “…The lies (Western slander) which well-meaning zeal has heaped round this man are disgraceful to ourselves only…How one man single-handedly, could weld warring tribes and wandering Bedouins into a most powerful and civilized nation in less than two decades….A silent great soul, one of that who cannot but be earnest. He was to kindle the world; the world’s Maker had ordered so." - Thomas Carlyle

  7. #7
    Validated User Scott's Avatar
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    Quote Originally Posted by Falc'man View Post
    No I didn't think it was.
    Still a great lubricant though

  8. #8
    Quote Originally Posted by Scott View Post
    Still a great lubricant though
    Went straight over my head didn't it.
    “…The lies (Western slander) which well-meaning zeal has heaped round this man are disgraceful to ourselves only…How one man single-handedly, could weld warring tribes and wandering Bedouins into a most powerful and civilized nation in less than two decades….A silent great soul, one of that who cannot but be earnest. He was to kindle the world; the world’s Maker had ordered so." - Thomas Carlyle

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