25-01-2020, 12:48 PM
(This post was last modified: 25-01-2020, 12:50 PM by Robert Leigh.)
At that time most or all of the holes in the crankcase were BSF I thnk, except for the sump fixings. It is common to find oversize holes for the starter bolts, because although Austin used 5/16" BSF they proved not to be strong enough in aluminium. An oversize steel insert really is the best solution, and 5/16" BSF in steel will prove strong enough. Another problem is that the corner of the flywheel housing can crack from the bolt holes, and solving that requires a good TIG welder and some luck.
Robert Leigh
Robert Leigh