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  1. #1
    Member larryhyco's Avatar
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    Oct 2011
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    rebuilt 1985 Mercury 150 XR2 No water out of the tale tale

    I have rebuilt my 150, 1985 Mercury XR2. I am not getting any water out of the tale tale but plenty out of the exaust when i crank it. New Thermostats, New pump. and I have checked all hoses for trash. Water circulates through engine. Engine is not running hot at all. I have not changed the poppet valve. Could this be a problem?

  2. Im wishin I was fishin
    Join Date
    Feb 2007
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    la vista , Ne
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    #2

    Re: rebuilt 1985 Mercury 150 XR2 No water out of the tale tale (larryhyco)

    if the hoses come off the t stat housings it will not pee till the tstats open , my 200 xri is like that. shows pressure on the gauge though.

  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    Apr 2008
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    Greenville, SC (US)
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    98,022
    #3

    Re: rebuilt 1985 Mercury 150 XR2 No water out of the tale tale (larryhyco)

    +1.... The engine's telltale stream DOES come from the Thermostats.

    Hence, until the thermostats OPEN, there will be little or NO water from the telltale stream.

    When water IS present at the telltale- it will be HOT (don't put your hands in it).




    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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