1984 4.5 Merc Tell Tale

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  • June 26, 2015 at 3:56 pm #1864
    stanley
    Participant

      US Member

      Is there one and if so where?

      June 26, 2015 at 4:52 pm #18955
      retiredoz
      Participant

        Look for a tube running from the block to the lower cowl ? That was a fairly common setup. Make sure the fitting is clear.

        June 26, 2015 at 11:39 pm #18973
        billw
        Participant

          US Member

          Seems to me that you should have the hose design, as mentioned above, by retiredoz, if yours is really an ’84 4.5. Sometimes people base what they have on what others have told them; and with Mercurys especially, that seems to be wrong, too often. Anyway, the red nozzle from a can of WD 40 or the like is a great thing to keep handy. They clear clogged Merc telltales out, nicely. If that doesn’t work, with the engine not running, blow back through the outlet with compressed air; then try running it again. If you see steam or exhaust gas coming out of the tell tale hole, stop the motor because you have a serious problem.

          Long live American manufacturing!

          June 27, 2015 at 3:32 am #18998
          legendre
          Participant

            I have here what I’ve identified as a 1983 Mercury 4.5. It does have the ‘real’ CDI ignition, so it’s close to that date.

            The tell-tale is on the starboard side, lower edge of the casing, about 1-1/2" aft of the tip of the starboard cowl latch.

            It’s a stub of black rubber tube approx. 1/4" OD, with a 1/8" ID. Should squirt pretty well, even at a low trolling idle.

            June 27, 2015 at 11:29 am #19007
            mogems-yahoo-com
            Participant

              I’m asking at the risk of laughter. What is a "Tell-Tale"? George 4TSQ

              June 27, 2015 at 3:40 pm #19015
              retiredoz
              Participant

                Typically a small outlet from the water jacket routed out where you can see it. Givwes you a hint whether your waterpump is working or not.

                June 27, 2015 at 11:07 pm #19049
                legendre
                Participant
                  quote retiredoz:

                  Typically a small outlet from the water jacket routed out where you can see it. Givwes you a hint whether your waterpump is working or not.

                  Others call this the "pee hole", but I’m not among them.

                  I believe the non-colloquial industry term is "water discharge" but please feel free to correct that.

                  June 29, 2015 at 11:09 am #19147
                  stanley
                  Participant

                    US Member

                    Regardless of the correct name,we found it and it was stopped up with crud.We ended up having to put a new water pump in and all is well.I was helping my son with this motor and he was amazed at how quick the response was to our ?.Thanks again to all who make this forum work.

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