[The cap'n]

A couple of thoughts after reading the replies and seeing the pix. What caused the marks on that steel contraption affixed to the end of the case? They lok as if something ground on it, and they're not positioned in a way that the pulley could have done the damage. The "dent" in the deep sump doesn't look like it could have been made by the pulley, unless the ground clearance was REALLY low. The flywheel bolts: Looks like the end of a 912 crank that suffered a bad downshift. An abrupt and significant change in the relationship between transmission speed and engine speed can do this. I'm NOT saying you missed a shift, just that something like that can result in something that looks like this. For example, if the engine seized while the car was moving at pretty high speed, both the flywheel and the pulley (which is attached to a fan assembly with some flywheel-like characteristics) could shear the pins and bolts (especially if the bolts were at all under-torqued) and there you have it.....

One more thought, relating to DD's post. There are 2 different length flywheel bolts. It's remotely possible that the wrong bolts were used. I could see the long ones bottoming out if the center of the flywheel had been cut and the locking plate weren't used. I've always thought the bolts "locking" when tightened directly against the flywheel wasn't as good as when they had the soft lock plate to grip.

The Cap'n