This 1935 Sport Scout lh case had most all of the threads for the main race retaining nut broken off. I welded and machined one of these once! Never again everything moves and warps when you start in that area. So a new technique.
I turned all the threads off then turned the od to accept a sleeve

I made a sleeve but left enough on the end to thread 2" 16 left hand

Then I made some male 2" 16 left handed threads and parted a nuts worth off with my hightech parting tool.

Then using the threaded sleeve as a fixture I bored the nut to size and cut the left handed thread that acts as an oil seal in this engine.

Then I heated the sleeve to 950 degrees f and slid it into place let it cool and torqued and staked the nut.

Other than the fact it will rust I suspect way better than original and its all straight
Dusty
I turned all the threads off then turned the od to accept a sleeve

I made a sleeve but left enough on the end to thread 2" 16 left hand

Then I made some male 2" 16 left handed threads and parted a nuts worth off with my hightech parting tool.

Then using the threaded sleeve as a fixture I bored the nut to size and cut the left handed thread that acts as an oil seal in this engine.

Then I heated the sleeve to 950 degrees f and slid it into place let it cool and torqued and staked the nut.

Other than the fact it will rust I suspect way better than original and its all straight
Dusty
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