Interesting - I was only aware of the DJ4 and the DK4A (below, left and right) being used on Austin 7's with the changeover in July 1934. Any other distributor (DKY4A, DM2 etc) was probably introduced by the special builders in the 50's and consigned to the Autojumble box.
Perhaps this mysterious DJ4A was an interim model or more likely, standard fitment from another car entirely? 7 degrees is not a standard Austin 7 advance figure, 3 degrees for 2 bearings rising to 8 degrees for three bearings were the standard figures.
There's very little/no reference to a DJ4A on the net.
Perhaps this mysterious DJ4A was an interim model or more likely, standard fitment from another car entirely? 7 degrees is not a standard Austin 7 advance figure, 3 degrees for 2 bearings rising to 8 degrees for three bearings were the standard figures.
There's very little/no reference to a DJ4A on the net.