Crankshaft wobble

[Tony Press]

Talking of the Big Seven - I have again located the website that quotes the differences between the Big Seven and the Eight engines-

http://www.austin-eight.com/austin8history.htm

"But it is a fast, yet often quoted, misconception, that the Austin Eight adopted the Big Seven engine. As has been explained in these columns the latter’s engine is markedly different yet a step forward from the Seven in the modernization process. Without repeating what has been said before, the Austin 8 has a different crankshaft and connecting rods, the entire lubrication system from sump pan to pump is different and the detailing of the valve gear has also been altered as has the manifolding, cooling and even the components for mounting the unit.
That said, the Eight does have a 900 cc (56.77 x 89 mm) side valve engine (the Big Seven’s stroke is 0.1 mm shorter because of a smaller diameter for the big end journals)."

Regarding mounting of Angular Contact bearings on the Austin Seven crankshaft front I add the following- having in mind the flexible Austin Seven two bearing crankshaft- 

Cheers, Tony.