After looking at the degraded paint on the engine and gearbox I realised how much the surface finish on many of the fasteners and parts had degraded since they were re-plated literally 14 years ago, having been uncovered (albeit in a garage) for much of that time. In addition to this I had a large number of other custom fasteners needed for assembly that would need plating. I chose to get an zinc electroplating kit from http://janekits.com.au and try it at home and complete batches as I find and gather the fasteners for the Mini. Having multiple small batches of fasteners professionally plated will quickly become expensive otherwise. The plan was to try and get a consistent yellow/gold colour on all fasteners, brackets and parts. After reading the supplied manual, all 4 Litre baths were mixed into 5 Litre containers to test the process : - Pickle bath (15% Hydrchloric acid) - Parts cleaning bath - Plating bath - Pre-chromate dip bath - Chromate bath Each of ...
Many years have passed since the engine and gearbox was sandblasted and painted. After sitting around the workshop for so long, not always under a cover, it was quite dirty and some areas needed a paint touch-up. Everything needed a pressure wash before paint touch-ups so I designed and 3D printed some (flexible) TPU filament covers to seal all openings and electrical connecters to mitigate water ingress. The engine & gearbox was pressure washed, being careful not to direct any spray at the openings even though they're covered. After everything was dried off with compressed air it looked like much of the paint needed some prep and new paint. The gearbox was quite patchy and would need doing also. The gearbox was removed, wire-wheeled then primed and re-painted with enamel paint. Note that all the case bolts had been removed prior to painting. I also had to remove and reseal the oil sump as I had previously found had a minor oil weep. The mating surface was well cleaned in prepa...