Buy Yamaha Outboard Parts

Announcement

Collapse
No announcement yet.

93 Yamaha Oil Issues

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 93 Yamaha Oil Issues

    I have searched through these threads quite a bit, and in fear not knowing if my issue has been discussed I would like to ask a question.

    93 Yamaha Pro V 150 (150TLRR). A couple mths back my oil buzzer was going off in the middle of the river, I yanked the cover off the motor and realized I had little to no oil in the engine mounted tank. Took the boat home and the remote oil tank pump was not pumping oil. I ordered a new pump, and installed to only have the same problem. Turns out the small inline filter/strainer was the issue, I replaced it and it pumps like a charm.

    Now I have an entirely other problem. For whatever reason seemingly off and on the remote oil pump is continuing to pump oil into the side mounted tank even when past the point it would normally turn off. So it is flooding the motor compartment and the motor itself with oil. When it does this I can remove the cover and see oil has leaked from around the sensor cap and gone everywhere. It smokes like crazy and the engine runs terrible when it happens which is not a surprise.

    Does this seem to be the oil level sensor itself malfunctioning? This motor came with digital gauges. I have never seen the indicator for the oil change regardless of the tank being empty, half, or full..I am not sure how much these gauges directly tie into the motor performance itself, and I am trying not to over think the problem. I am not a person with alot of money to throw into a motor, but I am definitely not going to continue to run this motor while this is happening. It just seems odd that this problem has snowballed since the first issue of a bad inline filter/strainer. The Yamaha has been the best and most reliable motor I have ever owned up until now.

    Any assistance would be greatly appreciated, and I apologize if this is something that was already directly covered I just could not find it. Thanks to anyone that can help me out.

  • #2
    the gauge indicator is only for the oil in the main boat tank. so if you keep that full you will never see a change, the sensor on the engine mounted tank is what turns the pump on and off, so if the pump continues to fill the tank chances are it is bad.

    Comment


    • #3
      level switch in motor oil tank is the most likely problem.
      Service manual will have steps for testing, or do some looking for other posts

      Comment


      • #4
        on that engine, unplug the engine tank harness.
        turn the key to on,
        jump engine side brown to black.
        pump should run.
        jump engine side white to black.
        pump should shut off.
        the engine tank switch has 3 positions.
        SW1 float all the way up takes white to black.
        SW2 midway down takes brown to black.
        SW3 all the way down, second pump on command,audible alarm command and RPM reduction command.

        a trim sender fault would cause a no pump on issue.

        Comment


        • #5
          Thank you guys very much for the info..I will get to testing..

          Comment


          • #6
            I removed the engine mounted oil tank, i noticed there is a small foam circular looking seal or gasket that was just sitting on the bottom of the tank.

            When I look at schematics on this oil level sensor, it looks as if there was a tubular looking strainer that actually surrounded the actual rod that the float travels up and down. My sensor did not have that. And everything I search for the small foam gasket speaks as if its a part of a long tubular strainer that I do not have?

            forgive my ignorance, this is what mine looks like.
            Attached Files

            Comment


            • #7
              That is a baffle, it prevents the sensor float from moving up and down with the sloshing oil, the foam washer fits around the nipple of the baffle, it is very important and you have to have it. you could still have a bad sensor but i would get the baffle first and try it.

              Comment


              • #8
                I am sorry I just dont understand. So does that washer go on the rod that the float travels up and down? Maybe above the float?

                Comment


                • #9
                  After re-reading this 100 times, tell me if I am correct. From what I have read here I am under the assumption that the baffle is infact a screen that surrounds the actual sensor/float? Correct? And it seems for whatever reason i do not have that correct? Could have been removed prior to myself purchasing the motor. It ran fine for 4 years seemingly without.

                  And that foam washer is actually a part for something I do not have in the first place? Correct? If I am way off and a complete idiot tell me so I have thick skin.

                  Comment


                  • #10
                    Originally posted by Sequoiha View Post
                    That is a baffle, it prevents the sensor float from moving up and down with the sloshing oil, the foam washer fits around the nipple of the baffle, it is very important and you have to have it. you could still have a bad sensor but i would get the baffle first and try it.
                    I understand now sir thank you, I need that part I will order it. Like you said sensor could be bad, or could just be pure luck that it ran so long ok with that tank missing a major component. Thanks again.

                    Comment


                    • #11

                      Comment

                      Working...
                      X