turbo/WG studs?

Gerard gerard at poboxes.com
Mon Aug 11 21:24:33 EDT 2003


The wastegate stuff should be available from any engineering supply
store. They're M8x50. The nuts are listed as VM8. I have these and
they're cadmium plated and I got them from a local engineering shop. At
first sight they do look strange indeed. Like a nut within a nut with a
collar.

The manifold to turbo studs are M10x35. I never needed to replace these.
I recall it being mentioned on the list that these are titanium. Fair
enough considering their job. My local engineering supply store now also
carries various titanium fasteners, but not sure if they have these.

The matching nuts are a shouldered M10, but I couldn't find those except
in galvanised steel. Instead I went for A4 stainless steel and matching
washers. Heaven knows what the result will be. :)

The downpipe to turbo section requires a nut listed as MM10 and is a
self-locking type. The stud is a M10x33x20, but I'm once again unsure of
material type.

I replaced with stainless steel wherever I could.

Part numbers are:

 wastegate stud          101 693 01    M8x50
 wastegate nut           900 721 01    VM8
 downpipe stud           902 258 01    M10x33x20
 downpipe nut            903 690 01    MM10
 manifold to turbo stud  900 717 02    M10x35
 manifold to turbo nut   046 145 749   M10

You also need info on the studs, nuts and bolts going from the wastegate
to the downpipe?

G.

auditude at cox.net wrote:
>
> I would like to get new studs for the turbo and wastegate, for a MC two-piece EM.
>
> Are these dealer-only items?  Can I get equivalents anywhere else?
>
> Anyone have part numbers for these?
>
> Thanks,
>
> Ken



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