[Jake Raby]

The failure of the pressure relief system is very rare. The only time I have seen this lead to issues is when the pressure relief valve spring snaps in half (Mode of Failure #17).

The biggest issue is heat being absorbed by the clutch, passing through the flywheel, then heating up the rear main bearing. This leads to shear and wear, then wear debris of the rear main contaminating the rod journals of cylinders 3/6, leading to bearing failure.