For the second time now I've had to remove a side plate off my 6v92ta in order to get a zinc out for service. These are 3/4 pipe thread with a square head on them. In each case I've had to resort to a breaker bar to free them, and both times the square head broke off, forcing me to drill , cut and chisel to remove them. I'd like to reinstall them with Neversieze but I'm concerned that it might interfere with the contact and render the zinc useless. Any thoughts here?
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Thread: Heat Exchanger Zinc Question
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02-24-2021 09:44 PM #1Senior Member
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Heat Exchanger Zinc Question
Everyone should believe in something - I believe I will go fishing - Henry David Thoreau
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02-24-2021 10:00 PM #2Senior Member
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Re: Heat Exchanger Zinc Question
I use Loctite copper anti seize. you can check for continuity after installation with an ohm meter if your concerned.
P
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Re: Heat Exchanger Zinc Question
Grease with metal in it?... Sounds like a textbook insulator to me.
--- The poster formerly known as Scrod ---
I want to live in Theory, everything works there.
1970 36C375
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02-24-2021 11:35 PM #4Senior Member
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Re: Heat Exchanger Zinc Question
I guess that's my question. Does it really insulate? Are the male and female threads not touching at all, or are they making good contact but with partial lubrication to prevent seizing?
Everyone should believe in something - I believe I will go fishing - Henry David Thoreau
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Re: Heat Exchanger Zinc Question
Bob, at rest the HE is empty, therefore, no need for zincs. Underway, the large in/outlet pipe zincs should be plenty of protection with their larger anodes. I’ve done away with the 1/4” pencil zincs because they often break off in the HE. You may recall I freshwater flush my raw water circuit after use further obviating the need for HE zincs.
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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02-25-2021 08:13 AM #6Registered Member
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Re: Heat Exchanger Zinc Question
No it won't electrically insulate your zincs. Here's a good read on that subject:https://www.sbmar.com/articles/myths...-dope-threads/
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Richard
1985 Motor Yacht 48
DD 6V92 TA
Montreal, Canada
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02-25-2021 11:01 AM #7Senior Member
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Re: Heat Exchanger Zinc Question
Good ole Tony Athens. Good article. Thanks.
Everyone should believe in something - I believe I will go fishing - Henry David Thoreau
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02-25-2021 06:03 PM #8Registered Member
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