As discussed in the April issue of 'The Automobile' pages 26-34 there are a number of different Brescia Bugattis including a some built by Crossley in Manchester.

Cheers, Tony.

Location: Melbourne. Victoria, Australia.

It's ok Bob, I'll try to get a copy of that book.
The diagram posted a few days ago is much closer to my recollection of a Type 13 engine. I think it's far superior to Austin's in that it collects oil for the whole revolution. That said, I never had a problem with splash fed austins.

The picture I earlier posted was of a late model (1924) Brescia Bugatti crank, for the 10 odd years before that they looked like this:



Look familiar? Sorry for the blurry bit in the middle as picture went across the spine of the book (Bugatti Le Pur-sang des automobiles by Hugh Conway)

Cheers, Mark

Location: Rokeby, Victoria, Australia

I don't like the jet in the groove idea at all as the oil would be flung out of the groove ( which is Concentric not Eccentric) by centrifugal force when the jet came out of the groove.
The groove would seriously weaken the crank in a very critical area in my opinion, in what is not a very substantial crank.
Not one of Bugatti's best ideas.
When the oil has entered the pocket, in the seven arrangement, it is flung into the crank-pin by centrifugal forces and has nowhere else to go. More so in the Phoenix / Barlow cranks which are skew drilled from pocket to crank-pin with no corners.
Cheers Steve Hainsworth

Location: Wellington NZ

The Bug cranks had full circle webs, that may help to explain what a 2D drawing does not.

Location: Rokeby, Victoria, Australia