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Thread: Winterizing

  1. #1

    Default Winterizing

    Is it necessary to remove the therostat when flushing engine with anti freese?

  2. #2
    Join Date
    Dec 2006
    Location
    Greenfield Me. USA
    Posts
    6,082

    Default Re: Winterizing

    Donno,.... I drain everything, 'n store dry,....

    Air don't freeze,....
    Any Grease is Better,... Than No grease at All....

  3. #3
    Join Date
    Sep 2008
    Location
    Hague, Virginia, USA
    Posts
    4,832

    Default Re: Winterizing

    What kind of engine?
    CHawk 25 DLX

  4. #4

    Default Re: Winterizing

    chev block inboard

  5. #5
    Join Date
    Sep 2008
    Location
    Hague, Virginia, USA
    Posts
    4,832

    Default Re: Winterizing

    It depends on what type of cooling system you have. If it's a pure raw water cooling system where raw water cools the entire engine, yes, it's a good idea to remove the t-stat before flushing.

    If the engine cooling system uses a heat exchanger where the raw water is pumped in a heat exchanger then that raw water is pushed out through the manifolds and risers, there is no need to fool with the t-stat because the engine coolant, which also runs through the heat exchanger to be cooled should have permanent anti-freeze in it. This type of set up is just like an auto engine, except for having a radiator that is cooled by air flow, it has a heat exchanger cooled by raw water.
    CHawk 25 DLX

  6. #6

    Default Re: Winterizing

    Quote Originally Posted by chawk_man View Post
    It depends on what type of cooling system you have. If it's a pure raw water cooling system where raw water cools the entire engine, yes, it's a good idea to remove the t-stat before flushing.

    If the engine cooling system uses a heat exchanger where the raw water is pumped in a heat exchanger then that raw water is pushed out through the manifolds and risers, there is no need to fool with the t-stat because the engine coolant, which also runs through the heat exchanger to be cooled should have permanent anti-freeze in it. This type of set up is just like an auto engine, except for having a radiator that is cooled by air flow, it has a heat exchanger cooled by raw water.


    Thanks for the information I have removed the thermostat

  7. #7

    Default Re: Winterizing

    Thanks for the information before flushing raw water system with coolant I removed the thermostat

  8. #8
    Join Date
    Dec 2006
    Location
    Greenfield Me. USA
    Posts
    6,082

    Default Re: Winterizing

    Quote Originally Posted by Kevin S View Post
    Thanks for the information before flushing raw water system with coolant I removed the thermostat
    Ayuh,.... Did you Drain it before ya ran antifreeze through it,..??

    If Not,... Ya didn't winterize it,.....
    Any Grease is Better,... Than No grease at All....

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