Re: BigKev's 1937 115-C Convertible Coupe

Posted by DavidPackard On 2023/1/13 22:15:18

Kev:
7/8 inch diameter would suggest 270 ftlbs, but before I jumped into the deep end I would torque to 200 ftlbs plus whatever it took to get to the next castellation. And then recheck at 200 ftlbs in 100 miles. My concern is my ignorance on the pre-war materials and heat treating versus the post-war hardware.

I would also clean up the nut face and washer especially if they are heavily scored. I don’t know of any technical reason stopping you from just backing up if you over torque and miss cotter pin alignment the first time.

I’ve doubled checked and confirmed 100 ftlbs is appropriate for a 5/8 X 18 axle. That’s the Brand X configuration and it’s ben OK for some 95 years at that torque, so perhaps my concern about pre-war materials is unfounded.

I watched your video . . . I must get a Big Orange Hammer!

dp