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Old 07-17-2015, 08:09 AM   #1
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Northern Lights 0753K 8KW Generator

I just purchased a 2002 Nordic Tug 37 that has a Northern Lights 8KW generator model number 0753K. The operators manual does not list a pencil zinc, but the maintenance log shows that one was changed out.
Need advice on zinc and any other helpful information on maintaining this unit. It has 1000 hours run time. No leaks. Starts up great. Just want to keep it in great shape. Appreciate any and all insight.
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Old 07-17-2015, 08:16 AM   #2
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There aren't any pencil zincs on it because the tube set is isolated by rubber boots in the cooling block.
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Thanks, Oliver
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Nordhavn 47 Hull #12
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Old 07-17-2015, 08:28 AM   #3
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Quote:
Originally Posted by N4712 View Post
There aren't any pencil zincs on it because the tube set is isolated by rubber boots in the cooling block.
Quote:
Originally Posted by Pgitug View Post
The operators manual does not list a pencil zinc, but the maintenance log shows that one was changed out.
I am confused!
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Old 07-17-2015, 08:28 AM   #4
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We have the Northern Lights 8Kw M753G and have never changed or installed a zinc. I hope I haven't missed one.

For piece of mind I'd call NL in Seattle. If you do, let us know what you find out. 206.789.3880 The customer service manager as per their web site is Scott Dyball.
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Old 07-17-2015, 08:31 AM   #5
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I looked on line and NL only reference to zincs is on their M864W3 (25/20 Kw) unit.
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Old 07-17-2015, 09:36 AM   #6
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No zinc on 753. There is a zinc port on exhaust manifold, but it goes into coolant side, not sea water side. If someone put a zinc there, it would do nothing.
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Old 07-17-2015, 10:14 AM   #7
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Hey thanks for the feed back. Like SKI IN NC said, if the PO put in a zinc it must have been on the exhaust side. I will take a look at that. Thanks again.
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