Our sailboat, in a salt environment
, has a older Yamaha 8hp long shaft.
has always been 100% reliable and overall looks quite presentable however there is an area of the aluminum
exterior lower engine
casting that has developed some corrosion
It seems that the factory paint
barrier has been breached allowing moisture, in the absents of oxygen, to form a white powdery oxide and further undermine the paint
Last haul out
I did a clean up of the area with a brass brush, emery cloth and a wipe down with acetone and a quick spray with a rattle can from HD.
This has lasted a while but I see the problem is coming back.
Is there a better process/paint that will allow me to touch up the engine
or would it be better to just remove the flaking paint a ignore the cosmetics?