They may have stopped making the car but they still manufacture replacement gauges that look just like the originals after all modern digital instruments just wouldn’t look right in the dashboard of a classic vehicle technicians give the mechanism a bit of an update but the look is all retro these car gauges are new but they have the same old faces the old-style dials are built to the original designs as replacement parts for classic and vintage vehicles making a classic car gauge starts with a zinc coated steel blank a worker places the blank on a tool a press stretches it around the form to shape it into the gauge case after a flange has been formed on the rim and holes punched for assembly purposes it’s on to the next operation a worker welds a stud to the back of the case the stub.
Will be used to mount the gauge to the dashboard another worker paints the inside of the case white [Music] next up is a brass tube for the light ball a worker secures it in a fixture and places the case over it a press crimps the top of the light tube around one of the holes in the case securing the tube to the back a mechanized printer pad picks up ink from engravings on a metal plate and transfers them to a dial for this gage they’ll need a hollow curved spring known as a Bourdon – to shape this flat brass tube into a spring a worker tucks one end into a forming tool he inserts a shim into the other end to keep the tube hollow as he curls it around the form this turns the flat tube into a c-shaped spring he then crimps one end in this press he dips the crimped .
End into a chemical cleaning agent and then into hot solder the solder hardens and seals this end of the Borden spring he satyrs a brass adapter to the opened end of the Bourdon tube this hollow socket is the part that will receive the fluid pressure that pressure will cause the tube to unwind and move gears that turn the pointer on the gauge dial a worker places the tube and water and pumps pressurized air into it through the socket he checks for bubbles that would indicate there’s a leak they make the gears that move the pointer using a hopping machine it’s a spinning cutter that carves teeth into brass parts known as racks a worker inserts a brass pivot in a holding device using a press she crimps the pivot to the center of the rack she then assembles a hairspring an opinion.
Between two brass plates she positions the rack in the gear sandwich she secures the assembly using a hand press now with tweezers she pulls the end of the spring through a hole in one of the posts and locks it in place with a pin she turns the shaft to confirm that the rack and pinion gears engage and work smoothly returning to the Bourdon tubes she transfers one to a fixture and locks it in place she places the gears on top of the Bourdon tube and screws it to the side of the socket she then.
Installs the Bourdon tube assembly in the gas gauge casing a worker now connects the gauge to a pressurized air source she pops the retro loop dial into the device and attaches the pointer to the protruding gear shaft she then introduces air at a known pressure to calibrate the gauge she tucks a gasket into the top rim and then fits a glass pane on top a chrome-plated bezel retains the assembly and frames it a press snaps the components together made-to-measure this car gage is now complete and it looks like a classic.