Engine install
 

Is s there a DIY substitute for a flywheel locking tool?

Little piece of metal with 2 holes for a bellhousing bolt and pressure plate bolt or dowel

Flouese,
I used before a strip of angled iron with holes (the kind used for shelves, etc) and connect one of the flywheel bolts to one of the bellhousing holes.

First attach the FW side (loose) and then you move the strip of metal around until one of the holes align with one of the holes on the bellhousing, then tighten both ends will allow to torque down the flywheel.

This is what has worked for me, good luck!

I used heavy duty zip ties.