Almost the last piece to go back on the engine is the fuel lift pump. This mechanical pump is driven by a special lobe on the cam shaft, causing the actuator to lift a diapragm thus drawing fuel from the tank and sending it on its way to the carb. There is also a small priming lever beneath…. the only reason for which is to test the pump is working should there be a need to eliminate it fault finding…. I think

The glass jar is there to catch any sediment that might have gotten through the 2 previous gauze filters.

The fuel pipes are remove and the pump stripped down. All seals and diaphragms were disposed of and whatever was left to soak in a solution of  boiling water and bio dishwasher cleaner.
Well, whatever “Held Eco Dishwasher Cleaner” is made of, I wouldn’t want to swallow any. Shiny parts ready to put back together with new Genuine seals, diaphragm and gaskets
Return spring located in the pump housing
Diaphragm inserted and locked with a 1/4 turn
Top and bottom sections screwed together. The fine gauze filter can be seen on the left and filters out particles as petrol is pumped into the sediment jar. After 50 years and many thousands of litres of pretrol, the gauze was still clear of debris.
All back together. The workings (such as they are) behind the actuator were given a good dose of engine oil.
Gasket and sealant ready to be offered up to the engine
New stainless steel fixings were used to fix it to the block. Fuel lines in (left) and out (right) are fixed in place and to prove the pump works, I pumped the primer a few times and petrol was draw from the tank to the sediment bowl. Is petrol cloudy….