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Old 02-13-2015, 02:54 AM   #57
Forkliftt
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City: Diberville Mississippi
Vessel Name: KnotDoneYet
Vessel Model: 1983 42' Present Sundeck
Join Date: Oct 2007
Posts: 2,450
Quote:
Originally Posted by boatpoker View Post
1. Then simply measure between the shaft and to the point where your brush is bonded.



2. Measure between the shaft and the "big zinc block"



A few years ago I walked around a boat yard and measured resistance between shaft anodes and shafts. Out of 40 boats I found only two that had good continuity. One was a new boat that had never been in the water and one had just had a new anode (properly) installed. If your anode is not dissipating it is not working. Most people install anodes without ensuring continuity. The surface on which the anode is mounted must be cleaned and there must be good electrical contact between the two. Taking a wire brush to an anode is simply not good enough.

Well noted. I'm finally getting back to the boat today and the yard will have the zincs installed- I will confirm continuity with my Fluke. Thanks


1983 Present 42 Sundeck
Twin Lehman 135's
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*Present 42 twin 135 Lehmans
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