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Cummins 450 zincs

Discussion in 'Technical Discussion' started by enproep, May 28, 2014.

  1. enproep, May 28, 2014
    #1
    enproep

    enproep New Member

    Joined:
    Jun 7, 2011
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    Location:
    newport beach, ca
    Hello:
    I'm replacing the zincs in my Cummins 450's and notice a couple of them look in tact but are heavily coated in oxidation (whitish). Do these need to be replaced or can I just clean the oxidation off.
    Thanks.
  2. Capt J, May 28, 2014
    #2
    Capt J

    Capt J Senior Member

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    Just replace them, because if they break off it takes a lot of time to get them out of the system and isn't worth the hassle
  3. Fishtigua, May 29, 2014
    #3
    Fishtigua

    Fishtigua Senior Member

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    Location:
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    Taken out of a Cummins this morning, one either end of H/E.

    As J says, just change them.

    Attached Files:

  4. gr8trn, May 31, 2014
    #4
    gr8trn

    gr8trn Senior Member

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    OR/WA/CA/BC
    Fishtigua,
    Salt Water?
    How old?

    Thanks,
    Greg
  5. Fishtigua, May 31, 2014
    #5
    Fishtigua

    Fishtigua Senior Member

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    Yes, in saltwater. The boat gets light use during the season. One big service at the beginning of the season and a 2nd light service at the end.

    On some of the commercial Cummins we look after, the anodes get changed 4 times a year.
  6. gr8trn, Jun 1, 2014
    #6
    gr8trn

    gr8trn Senior Member

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    OR/WA/CA/BC
    Good to know, thanks.