dave6666
Enthusiast
I know, you can always drill them out and put a bolt through those pesky nuts they weld to the chassis when you strip one. Or get a nut on the back side if you have access. I always try to get as close to OE as possible, throwing in any engineering I can along the way.
Well, my rear exhaust hanger stripped out a thread, and here we go.
Stripped this one:
No threads here:
The fix will be to drill it out and install a weld nut from McMaster Carr.
They have several sizes & styles, but this is what I used:
They are advertised as 3/8" OD for the 5/16-18 thread, but they were actually about a 64th over at the base.
Top - 3/8"
Base - 1/64th over
So I drilled out the stripped nut to 3/8 plus 1/64, and gave it a chamfer with a countersink to allow for the radius at the base of the weld nut flange.
Tapped in the weld nut:
Get a good ground:
And weld:
BTW, I did disconnect the PCM and battery when welding. Your call on that.
Touch up with your favorite chassis paint and you are done.
Well, my rear exhaust hanger stripped out a thread, and here we go.
Stripped this one:
You must be registered for see images
No threads here:
You must be registered for see images
The fix will be to drill it out and install a weld nut from McMaster Carr.
They have several sizes & styles, but this is what I used:
You must be registered for see images
They are advertised as 3/8" OD for the 5/16-18 thread, but they were actually about a 64th over at the base.
You must be registered for see images
Top - 3/8"
You must be registered for see images
Base - 1/64th over
You must be registered for see images
So I drilled out the stripped nut to 3/8 plus 1/64, and gave it a chamfer with a countersink to allow for the radius at the base of the weld nut flange.
You must be registered for see images
Tapped in the weld nut:
You must be registered for see images
Get a good ground:
You must be registered for see images
And weld:
BTW, I did disconnect the PCM and battery when welding. Your call on that.
You must be registered for see images
Touch up with your favorite chassis paint and you are done.