Neil
Well-Known Member
While I had the boat lifted out for anti-fouling, I thought I'd change the anodes while I was about it. I bought a 19mm prop shaft anode but it didn't fit, and when I'd measured the shaft diameter, it was 20.25 mm. A quick perusal via google does show the odd supplier of 20mm, though not at my local chandlery. So, the old went back on - there's still about 60-70% still there, but now I'll have to do it again..but against the wall at low tide, this time.
The tear-drop anode was about 50% gone. Interestingly, the nuts and exposed threads were covered in filler, which had to be chipped off, but the threads were pristine underneath. Not having any with me, a coating of antifoul on the exposed threads was as much as I could do. Also, there was a gasket underneath the anode, (which went back) so electrical continuity was through the bolts, to the nuts, via the washers, to the anode baseplate. I polished the nuts and washers.....but is this good enough?
The tear-drop anode was about 50% gone. Interestingly, the nuts and exposed threads were covered in filler, which had to be chipped off, but the threads were pristine underneath. Not having any with me, a coating of antifoul on the exposed threads was as much as I could do. Also, there was a gasket underneath the anode, (which went back) so electrical continuity was through the bolts, to the nuts, via the washers, to the anode baseplate. I polished the nuts and washers.....but is this good enough?
