Acid bath and exhaust

Notable happenings today were Ken's extraction of the exhaust pipe... which had holes in multiple places. Unwrapping the bandage from it showed just how big they were!

The shape of the exhaust meant Ken was somewhat concerned about how a new one could be manufactured.

Another of the activities was to give the propeller an acid bath to clean it up. We painted the propeller four times and then washed off.  We used concentrated sulfuric acid, which was what was recommended, and it seemed to do a very good job.

It doesn't look like new, but it is totally clean brass now.