Previous owner '68

[Getter-Done]

Originally Posted by raggedjim

I did get the other fender off. Unfortunately trying to tighten to the breaking point stripped out the threads on the bolts! So I continued drilling them out, using a good drill with cutting fluid.

Scrapping undercoating, it is a joy.

Great Progress again today for you.

Myself
I am working on one of my better half projects.

I have used Wd-Forty or brake cleaner to soften the undercoating.

About the drilling of those bolts.


Here is my detailed process.

#1= HSS (High Speed Steel) center drill the Bolt.
Link: https://www.grizzly.com/products/gri...its;%20Grizzly

Just an Example link.


#2= Drill the head of the bolt 25% less than the diameter of the bolt.

This gives you 12.5% if you drilled Off Center.

Then only drill to a Depth of the head of the bolt.

#3= Then take an Impact drill/ air ratchet / air gun and try to tighten them till they break off.

#4= If they still spin/ Then I put Vice grips on the nut/ Then step up the drill size tell the head of the bolt goes away.