After I sold my business I work as Repair Machinist.? You see a lot of attempts at cast iron repair.? JB weld was one best to see , you had take time to remove all JB from casting. This same for bad welds and brazing.? Mainly it add hours to job.?
This includes strip tap holes everthing they try fail.?
That would include welding , brazing and plug {drill and tap for crank cases not thread inserts} and must be done right the first time.
Dave?
davesmith1800