After the triumph of seeing the SHEW car in operation, for the first in generations, a number of tasks have been attended to in order to develop its reliability and reduce its tendency to smoking and shedding petrol on the road.

One job was to make a new back box for the exhaust.  The original exhaust system needed to generate sufficient back-pressure to run the lubricator (readers may recall the tyre pump connected to this in the last post about the SHEW, to provide the necessary pressure in the lubrication system).

Below: The original back box (or silencer), removed from the SHEW.

Below: Two views showing the process of fabricating a replacement.

Below: The outer case, and the drawing that Chris made before construction started. The holes replace a tailpipe, in effect increasing the back-pressure.  More can be added later if required.

Below: The final assembly, test fitted to the SHEW.

Below: Another area for early attention was the fuel supply.  The pump that was arranged to deliver fuel for the first test runs was supplying a lot of fuel, the result being to flood the carburettor.  Therefore Chris has fabricated a new fuel tank to replace the original, which will feed the carb by gravity and hopefully obviate the flooding tendency.  The box has been cut and formed in the workshop, the views below illustrating the process.

Below: The completed tank, ready for painting.

Below: The tank is shown in red-oxide primer, during the painting process.

We will return to the SHEW in future posts, as work to improve it, operationally, gradually takes place.