I don't discuss my member
Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
Thanked 53 Times in 50 Posts
Rep Power: 17
Re: 'Sad Zinc's' might lead to other Sadness
As the zinc's erode, the irregular wasting creates an imbalance of the weight distribution about the longitudinal axis of the shaft. As the shaft rotates, the imbalance causes the shaft to "whip" or wobble which leads to rapid deterioration of the cutlass bearing and your packing gland packing material.
Give me a break.
I'd suggest against the use of aluminum anodes in salt water as they... will disappear even faster than zinc.
That is simply untrue.
Looks like your marina has some serious stray current going on.
Considering that the OP's other boat did not suffer excessive anode depletion, I'd say the best bet is that the issue lies aboard the boat in question, not with some general, marina-wide problem.
Last edited by Fstbttms; 11-12-2016 at 01:28 PM.