Oops on crank case

[Robert Leigh]

Drill and tap for two cap screw either side of the existing hole.  This can be done without removing the engine, if sufficient body dexterity exists.

Drill and tap into what, there is jus a big broken hole

I can, and have, repaired similar using two cap screws into the remaining metal on several engines Gene.  If you feel it is not possible you should consider alternatives, if you find yourself in a similar situation.

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Sorry Rorry, misunderstood what you meant.You meant drilling through starter bracket and tapping 2 new holes in the top of the crankcade, yes good idea.

If the flywheel housing is repaired by the good tig welder we all need, he could make sure there was plenty of 'meat' to allow two tapped holes, and with the starter mounting drilled suitably you have two bolts doing the job previously done by only one. Starter torque from 12 volts would be most unlikely to cause any repeat of the problem, which may well have started from a worn thread; those bolts have been in and out quite a few times in the life of the car, which has probably well outlasted Sir Herbert's plans for it!
Robert Leigh