Bolt fell into fan shroud, causing loud buzzing noise. Engine had to be removed and tin taken off to remove bolt.
Over the years several wires have had to be repaired, replaced or reconnected, especially those wires in the Fuel Injection system.
The Manifold Pressure Sensor recently failed, probably due to a spin out which the car did (that is a known problem with D-Jetronic engines, spin outs hurt their MPSes). Whole fuel injection system was replaced with Dual Carburetors from 1967 type III (dual Solex 32 PDSITs).
Car drives far better than a Volkswagen Beetle.
Very comfortable interior for a car of its era, has good ventilation and heating system.
Gets excellent gas mileage.
Handles very well for an older station wagon and is not as prone to oversteer as earlier Volkswagens.
Fuel Injection system allows the engine to start and run beautifully, like a car from the 1990s not like a early 1970s car.
High back seats are quite comfortable.
Has decent performance for an older Volkswagen, cruises at 84 miles and hour.
You say the fuel injection system allows the car to start and run beautifully, yet you replaced yours with carburetors?
Aparently a lot of mechanics change the cars over to carberetors because they simply don't understand the old VW fuel injection systems, and usually VW purists hate them for it.
It might not make sense to some. But converting back to carburetors makes sense considering that nobody makes parts for the old Fuel Injection system anymore. The F.I. System is not as durable or long lasting as a simple, straightforward carburetor.
The electrical parts and wiring may not hold up as well as carbs, but there certainly aren't problems with the mechanical parts. There's also a growing crowd of enthusiasts of pre-OBD cars that want to keep them running, so there's a growing aftermarket offering a computer update to OBD II control systems. Ask around, you'll find them.