Weber DGV 32/36 float adjustment gauge

This a highly esoteric thing - but very useful when needed. When setting up a Weber DGV 32/36 carburettor the first thing that must be done is to set the fuel chamber float to the correct level. Normally this is done by squinting across the float towards a metric rule, with the aim of getting it to sit 41mm above the carburettor cover in one position, and 51mm in another. This is quite fiddly, especially when you're holding a fragile set of components in your hand.

This simple gauge makes