angus99
Guru
So the TF brain trust is going to cost me a small fortune since I’m taking your good advice and springing for new prop shafts. ![Smiling face with smiling eyes :blush: 😊](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f60a.png)
In considering Aqualloy 22 vs 19, a manufacturer told me that either will experience crevice corrosion if the boat doesn’t move for months at a time and water is allowed to stagnate in the bearings and stuffing box (think winter). Aqualloy 22 is not immune from crevice corrosion, but is more resistant to it than 19. He said that simply rotating the shafts monthly with a strap wrench (assuming the engines are laid up for the winter and can’t be started) will replenish the oxygenated water and greatly slow the progression of crevice corrosion. So, I haven’t ruled out A-19 yet but would appreciate any thoughts.
Second question: two 16-ft A-22 shafts through major suppliers on the Chesapeake total about $11K plus tax and shipping. Deep Blue Yacht Supply in Fort Lauderdale prices the identical shafts at just over $7K (+ T&S). It sounds like a no-brainer, but I’d like to know if anyone has experience with Deep Blue before pulling the trigger.
Thanks!
![Smiling face with smiling eyes :blush: 😊](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f60a.png)
In considering Aqualloy 22 vs 19, a manufacturer told me that either will experience crevice corrosion if the boat doesn’t move for months at a time and water is allowed to stagnate in the bearings and stuffing box (think winter). Aqualloy 22 is not immune from crevice corrosion, but is more resistant to it than 19. He said that simply rotating the shafts monthly with a strap wrench (assuming the engines are laid up for the winter and can’t be started) will replenish the oxygenated water and greatly slow the progression of crevice corrosion. So, I haven’t ruled out A-19 yet but would appreciate any thoughts.
Second question: two 16-ft A-22 shafts through major suppliers on the Chesapeake total about $11K plus tax and shipping. Deep Blue Yacht Supply in Fort Lauderdale prices the identical shafts at just over $7K (+ T&S). It sounds like a no-brainer, but I’d like to know if anyone has experience with Deep Blue before pulling the trigger.
Thanks!