[Vwdiesel] Re: '96 Passat TDI engine noise nightmare! - "Solved" if not fixed!!!

[Nate Wall]

What's the 12-sided bolt used on? Bentley referrs to
it and its an angle torqued bolt.

--Nate
--- Mike Maguire <mmaguire at dircon.co.uk> wrote:
> Hi folks ... just posted this update at Fred's. Many
> thanks for all the advice and sympathy
>
> ******************************
> Well ... been under the car and had a go at the
> crankshaft bolt ... so why didn't anyone warn me
> about a bi-hex bolt head!!! First one I've ever come
> across & hard to believe it would stand up to the
> sort of leverage to both do & undo it!
>
> Although all I did was wind the gears up a bit, it
> wasn't obviously loose ... should I take out the
> starter motor and get someone to hold a bar against
> the starter ring?
>
> Oh well, let's poke around a bit while I'm down
> here.
>
> Hmmnn ... v belt seems a bit loose ... might as well
> undo it and try these two other pulley wheels. Click
> - click just a little play in the keyway on the ...
> um ... lets see ... mmmm, must be the power steering
> pump ... seems fine.
>
> Ok, next ... ah, this one'll be the water pump ...
> give it a twist ... what the!!! ... what the!!! ...
> I don't believe this ... how come the end seal
> hasn't leaked ... continue twisting and pulling
> laterally on the pulley ... wow ... how can a shaft
> lean so far out and still keep going ... where's the
> bearing gone!?!
>
> Put everything back together, start her up ...
> there's that horrible noise. Stop ... remove v belt,
> start her up ... no noise ... all gone!
>
> Yup, it's the bloody WATER PUMP!!! Seems to have
> eaten itself inside and taken out the bearing (or
> vice-versa) while leaving the end seal (probably an
> o-ring?) functioning.
>
> Bit of a pain to replace, pretty cheap to buy ...
> phew, the sun is shining once more!
>
> Ok folks, sorry for all the fuss, of course I should
> have checked every pulley wheel as a matter of
> course. It never occurred that the w-p could develop
> so much lateral play that it was literally bouncing
> and kicking around inside & sounding like that.
> *****************************
>
> Mike
> Exeter UK
> '96 Passat TDI Estate (with a very sick water pump!)
>
>


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