Using a nylon mesh reinforced nitrile diaphragm material, I replace old rotten components using a variety of suitable techniques. By wrapping the diaphragm material around the crimped components perimeter, I do OEM one step better. My diaphragm will never pull out of a crimped seam, as often is the case on OEM units.
When I say "Hundreds of units repaired", this is actually an understatement. I have repaired so many over the years that I have lost count. Here are a few unusual ones finished.
Something weird about this work--
The hydrocarbon aroma, ( or smells - depending upon your point of view) that accompany the opening of these old units is somewhat akin to their DNA signatures. Catching a whiff of some of these would spin the memories of some old timers back 90 years or more.!
CAST IRON MANIFOLD REPAIR
Forge brazing is a process using a lower temperature alloy rod to repair cast iron cracks that involves heating the entire manifold to eliminate local stresses in the cast iron.
Here you see the finished product where I cut to shape the overfill with a round-nose burr on a die grinder WHILE IT was still hot and cooling. An "Old Timer" told me that vibration of the unit during cooling helps re-set the crystal structure of the cast iron. I do not know if that is magic, yet I have more than 50 repairs like this in the field without failure.