Aluminum Block Repair
Thanks to all for the assistance, much appreciated! Today I pulled/picked out the old threads in the three holes I need to repair.
All are in the center of the block where the holes are tapped on an angle. I think I will ask a friend to make a jig similar to the drilling plate in the manual ( Friend has a small machine shop in garage) . The manual shows the proper angle. I also decided to go with Timeserts over Helicoils for no other reason than the shop selling them had both and recommended the Timeserts and I have had several recommendations for the Timeserts.
Thanks again, Bob