IIRC, part of doing a rebuild involves cleaning out the various oil
and coolant passage ways and other ?

But this is going from a faint memory, and I'm referring to a complete
rebuild which you're not doing.

Regardless.....

Since it's possible you've loosened other material, I'd spend the time
and do your best to make sure you've cleaned out the loose material.
I'm not familiar with a WBX 1.9, but would compressed air help in this
matter? Blow passages clear? Maybe the old bicycle pump with a soccer
ball needle trick would suffice. (if no compressor available)

I'll bet it was case half sealant that you are seeing, but then who knows?

Neil.

On Wed, Mar 26, 2008 at 5:12 AM, Giasson, Pascal (DNR/MRN)
<Pascal.Giasson@gnb.ca> wrote:
> I have been working on rebuilding the top end of my 1.9 since last June
>  (on and off obviously).  Because of the length of time the motor has
>  been open, I decided to try and clean any dust that may have got in
>  there by spraying the inside of the case with kerosene as per the Muire
>  How to Keep your VW Alive Idiot Book.  Some hard, brittle, black chunks
>  came out of the oil drain hole (case sealant? valve cover gasket
>  sealant?), and a few black silicone bits. Is this stuff "normal" to be
>  in the sump of a 150K motor? Should I be "anal" about trying to get
>  every last piece out? I already used about 3 litters of kerosene and I
>  think I got most of it out but I'm sure there are still some bits in
>  there. My motor ran fine before I took it apart. Thanks
>
>
>
>  Pascal
>
>  '84 Westy
>
>
>
>
>