Originally Posted by captain78
K I bought a set of long tubes put them on went to put the O2 sensors on and guess what the bungs are there but no holes drilled for sensors so pulled out the almighty dewalt drill and drill the holes. Driver side is perfect 90 degree angle no problems pass side is kicked up a bit and drill wasn't straight but did I stop nope drilled through and when done. Looked at it and ate the threads on bung so now o2 sensor won't go in lol I'm guessing only option I have is to weld up the hole and drill a new one and weld on a new bung for o2 sensor to fit. What y'all think is that my only option or is there something else I can do.
---------- Post added at 12:35 AM ---------- Previous post was at 12:35 AM ----------
Without removing the header
There just really isn't a good option for repairing that.
If you can get a hold of a right angle close quarters drill then you may be able to drill it out and use a thread insert. Check McMaster Carr for thread inserts and see if they have the correct size and see what size you would have to drill it out to, to ensure you have enough "meat" to do it.