We had already blasted the hinges but still needed to make a few repairs and clean them before spraying epoxy.
All the old grease and grit cleaned out with wax and grease remover.
The door stop rod was worn...
So I reshaped and smoothed the ramps.
The rod bottomed out against the hinge before it should have, which kept it from contacting the roller. This made the door have very wide "stops", letting the door swing freely more than it should.
The driver side roller had a flat spot. We welded it up and smoothed it out.
Then polished the rollers with a flap wheel.
After the repairs were done we boiled the hinges in Dawn dish detergent to get the last of the oil and grit out.
Then washed with PPG DX579/520 and shot with DPLF epoxy.
