i need to make new tread on the crankshaft hole,the bolt for that hole is 13.85mm. because the hole treads are strip i need to drill to a new size.my question is this.The hole is likely 13.90- 13.95mm.what size drill bit i need,and tap the biggest i got is 12x1.75 and is small? and what size new bolt i need?.the car is a 1992 Honda civic DX.i am trying to fix this car for my son.the car run fine .i not out of time,i just need to put the new harmony pulley.i wanted to take it to a shop,but around where i live.there are no much of those,.thanks for any help?