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Go Back   SailNet Community > On Board > Gear & Maintenance > zinc annode grinding
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Topic Review (Newest First)
02-04-2011 10:45 AM
Fstbttms
Quote:
Originally Posted by sailingdog View Post
Depends on whether it has four bolts holding it together or just two... if it has four, then that would work, if just two, probably not going be worth doing.
1" shaft zincs do not have 4 screws, regardless of brand, so this is a moot point.

I have used a hacksaw to shave zincs and more recently, a portable band saw. That makes quick work of the job.
02-03-2011 12:08 PM
mitiempo True
02-03-2011 12:02 PM
sailingdog
Quote:
Originally Posted by mitiempo View Post
Or cut them in half to make 2.
Depends on whether it has four bolts holding it together or just two... if it has four, then that would work, if just two, probably not going be worth doing.
02-03-2011 11:46 AM
mitiempo Or cut them in half to make 2.
02-03-2011 11:40 AM
sailingdog You could also just grind them down a bit with a belt sander.
02-03-2011 11:08 AM
scottyt I have a small metal lathe, if some one needs to they can send me a few zincs and tell me how small they need them. i will turn them down to what ever size they need.

just pay shipping both ways.
02-03-2011 05:14 AM
MARC2012 Are you using an egg or a donut?marc
02-02-2011 10:29 PM
Fstbttms
Quote:
Originally Posted by Spiritofcuttysark View Post
Newly purchase older boat with 1" shaft. Need to reduce shaft collar zinc annode profile size by 4mm each side. Should this be done on lathe or other suggestions?
What is the width of clear shaft you are dealing with?
02-02-2011 10:11 PM
CalebD Ok, I'll admit it. I usually grind down a 1" collar zinc for our shaft about once every 2 years, as needed. We only have a clearance of around 1/2" between the prop and the cutlass bearing on our old Tartan 27.
I looked into the 'drive savers' but since zincs are cheaper I keep grinding them down with: a grinding wheel, a 4-1/2" grinder and breathe zinc dust now and then.
Not much fun and there has to be a better way.
02-02-2011 09:08 PM
Spiritofcuttysark
zinc annode grinding

Newly purchase older boat with 1" shaft. Need to reduce shaft collar zinc annode profile size by 4mm each side. Should this be done on lathe or other suggestions?

 
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