This is the second morning working on the refurbishment of my spark plug tester. I can concentrate for about two hours then my brain goes dead and I start thinking about lunch. Anyway, today I got everything ready for reassembly. All the pieces are present and accounted for except one tiny part of a pneumatic fitting. I have a plan to do without it. The major unknown is whether the Tygon tubing I substituted will be able to stand the pressure needed for the sand blaster and cleaner. I hope to get the thing put together tomorrow, that is if I can finish it in two hours. Otherwise, it will be Thursday. The photos on my iPhone mentioned yesterday have been very useful.

The photo today is the working space inside the machine. Some of the fittings are a little tight for my fingers, but perseverance will pay off.