Broken intermediate shaft pulley

[peterman]

I didn't check it. I know I torqued the bolt and added loc-tite so I was very confident that it was a torsional failure. As I said before, the bolt had the marks of a torsional failure. One thing I should...

[peterman]

Pulled the front apart and the intermediate shaft was locked up. The oil pump shaft spins freely but the intermediate was not moving. I was able to pry it out with two pry bars on either side of the...

[peterman]

Never one to not investigate, I decided to run the analysis on the bolt clamping pressure and how that correlates to contact pressure and subsequently shear stress on the intermediate shaft. Using a static...

[peterman]

Hoping to have an answer for you guys on Saturday. Bolt was tightened and loctited in place... But anything can happen.
Varg, I wholly disagree with your statement. The pin is what drives the shaft...

[peterman]

The broken bolt has a consistent 45 degree helix break associated with a torsional failure. My thought is that the pin broke, then the bolt continued to tighten because of some crazy drag or hard stop...

[peterman]

I cannot find a single instance of this happening to anyone else online. Which makes me think think theres some funky things going on inside.
Relavent specs:
Fresh rebuild
M50b28 crank...