Tartan 27' owner
Join Date: Jan 2008
Thanked 144 Times in 136 Posts
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Re: Failing Cutless Bearing- What are Symptoms?
Bronze made a fine material for a prop shaft. It is a little softer than SS and was widely available when our boats were made. Bronze was cheap back then too.
Nowadays bronze is expensive compared to SS. Try pricing a bronze prop shaft vs SS. Formulations of SS are also much better now then they were way back when.
I will say I am not looking forward to the day (may it never come) when I have to cut our current SS shaft. The old bronze shaft took about 1 minute to cut with a fresh metal Sawzall blade.
I am not aware of increased problems of corrosion or electrolysis with the SS shaft. Talk to me in 10, 20 years and I might be singing a different tune. For now I just keep a collar zinc behind the prop and all seems fine.
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
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