Author [NL] [FR] [ES] [DE] [SE] [IT] Checking the Antifreeze on the Trophy  (Read 1176 times)

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  • Offline Tenequip   us

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    Offline Tenequip

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    Checking the Antifreeze on the Trophy
    on: Dec 29, 2021, 03.50 am
    Dec 29, 2021, 03.50 am
    Winter is coming in Pennsylvania now, so I decided to check the Trophy’s antifreeze. Checked it in the overflow reservoir and found it appeared it had not antifreeze. I had done the 40,000 mile service and thought maybe I forgot to put the antifreeze in back in. So I pumped the radiator & overflow reservoir out and checked it. The reading was -45F below zero. Put the fluid back into the radiator & overflow reservoir and checked it in the reservoir & it was above freezing. Couldn’t believe it! I checked it several times and the same. Checked in the radiator & it was -45 F. So I again checked the reservoir and this time checked the top lever of fluid & it was -45F. Before I had been checking in the bottom of the reservoir & reading above freezing and then checked the top level and again it was -45F. What is going on here? :112:

  • Offline Yaga1973   us

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    Offline Yaga1973

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    Re: Checking the Antifreeze on the Trophy
    Reply #1 on: Dec 29, 2021, 05.05 am
    Dec 29, 2021, 05.05 am
    How are you draining the system?  Did you drain the block as well?
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    Re: Checking the Antifreeze on the Trophy
    Reply #2 on: Dec 29, 2021, 07.28 am
    Dec 29, 2021, 07.28 am
    I presume you mean you checked the level of protection using an Anti-Freeze tester,
    and the figures you quoted are readings of the level of protection.

    What type of Tester were you using - Is there any possibility of it being faulty ?


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    Offline Tenequip

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    Re: Checking the Antifreeze on the Trophy
    Reply #3 on: Dec 29, 2021, 03.03 pm
    Dec 29, 2021, 03.03 pm
    To answer the questions that have come up:
        Using a conventional tester that sucks a little fluid out into a chamber that has an indicator, which floats in the antifreeze and indicates the level of protection. After I got the crazy readings, I got my old tester out and it got the same readings.

    I have a vacuum pump which I use to take the antifreeze out of the reservoir and the radiator. I didn't drain the block, because if I can get a quart and a half out of the system, which only holds 3 quarts, then I can get enough antifreeze in it for the necessary protection.

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    Re: Checking the Antifreeze on the Trophy
    Reply #4 on: Dec 30, 2021, 07.29 am
    Dec 30, 2021, 07.29 am
    Remember that the block (Cylinder head) has a threaded screw to empty the block
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  • Offline STJIM   us

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    Re: Checking the Antifreeze on the Trophy
    Reply #5 on: Jan 19, 2022, 02.41 am
    Jan 19, 2022, 02.41 am
    I like to use a reflectometer / diffraction measuring device  to check the freezing point of antifreeze.  They are very accurate and not technique dependent.   You can get one on EBay for about $20 USD.  Try one and I bet you'll never go back to using a float type or "pointer" type.

    And it doesn't take long at all to drain the engine block.

    And also, ( FYI ) there is a way to check the condition of the antifreeze by using a digital voltmeter ( of all things ).  Do a Google search on YouTube to find out more info about this.
    Last Edit: Jan 19, 2022, 02.52 am by STJIM
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  • Offline Yaga1973   us

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    Offline Yaga1973

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    Re: Checking the Antifreeze on the Trophy
    Reply #6 on: Jan 19, 2022, 01.09 pm
    Jan 19, 2022, 01.09 pm
    *Originally Posted by STJIM [+]
    And also, ( FYI ) there is a way to check the condition of the antifreeze by using a digital voltmeter ( of all things ).  Do a Google search on YouTube to find out more info about this.

    Very interesting!  Have you performed this test on your Trophy?  If so, how did you go about it?
    Ride safe, ride often!

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    2009 Harley-Davidson Road King
    2017 TTSE - Blue (Sold)

  • Offline STJIM   us

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    Offline STJIM

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    Re: Checking the Antifreeze on the Trophy
    Reply #7 on: Jan 19, 2022, 02.11 pm
    Jan 19, 2022, 02.11 pm
    Not yet on the Trophy since shortly after I bought my '15  I changed the antifreeze at the 20K check a year ago.

    But I did check both my cages using a voltmeter and I bought some PH checking strips, too.

    Here is a link for the voltmeter coolant check :  https://www.howtodiyeverything.com/how-to-test-car-coolant-with-a-multimeter/

    Another link I found says to turn off all accessories when doing the check such as AC, head lights, etc. and to make sure the tip of the probe placed in the coolant isn't touching the radiator cap opening if it's metal.
    Last Edit: Jan 19, 2022, 02.20 pm by STJIM
    IBA #35372  Mile Eater Gold 8-2022
    BBG  5-2014  SS3K 9-2020
    Great Lakes 100 :  2011/2019/2022
    2015 TTSE , 2008 Concours C-14
    1998 ST1100