Aluminum Thread Repair

ALUMINUM THREAD REPAIR

Damaged or worn threads in the aluminum transmission case and valve body can be repaired by the use of HeliCoil or equivalent. This repair consists of drilling out the worn-out damaged threads. Then tap the hole with a special HeliCoil tap, or equivalent, and installing a Heli-Coil TM insert, or equivalent, into the hole. This brings the hole back to its original thread size. HeliCoil, or equivalent, tools and inserts are readily available from most automotive parts suppliers.