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Trim/Tilt Gauge not working for my 1989 70 HP Evinrude?u

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  • #1

    Trim/Tilt Gauge not working for my 1989 70 HP Evinrude?u

    Ok sense I am not able to fish for at least a week do to the surgery I just had Monday,I figured I try to figure out why my Trim/Tilt gauge is not working.

    Well I have not had any luck finding answer why my Trim/tilt gauge is not working granted I not a boat mechanic on trying to figure why the gauge is not working,so I figured I ask some of you here who may have ran in to this before and could give me a idea why the gauge is not working,?

    I found a You Tube video saying to check the plastic lever that is in between the transom and motor to the left top side to make sure it moves up and down freely as it could be froze up or broke as it is only plastic which I check and it is not broke and does move up and down freely..

    Does anyone here know how I can fix my Trim/Tilt gauge?

    Now just to let you know my Trim/Tilt controls at the motor and on the throttle do work flawless it is just the gauge is not working..
    I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft
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  • #2
    Need to do some testing Clarence. Multimeter to check for both resistance and continuity in the wiring to the sending unit. Engine must be in the fully down position. Do you get a reading when it's fully down?




    http://saratogatackle.com/

    I now have a towel head asking if I wanna see his "talibaner"!
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    • #3
      Originally posted by Chicken Shoot View Post
      Need to do some testing Clarence. Multimeter to check for both resistance and continuity in the wiring to the sending unit. Engine must be in the fully down position. Do you get a reading when it's fully down?

      Hello CS,I do not the needle is just staying pegged down it will not go up or down,I need to see if I can borrow a meter from someone to test the signal,but I will need to wait till I can get this Stimulator out next week as I can not bend down enough to get under the dash to check the signal at the gauge,I do see what looks like a ground wire next to the plastic lever that moves up and down which I probably should remove and clean it up to make sure the ground is making a good ground connection..
      I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft

      Comment

      • #4
        Always clean and tighten all wiring connections prior to any troubleshooting on a boat's electrical system.

        The trim sender is nothing more than a potentiometer and the trim gauge is nothing more that an ohm meter. The trim sender simply varies resistance to ground, making the needle move.

        To check the gauge: With the power to the gauges on (key on), use a test light to verify that you have power to the gauge (12V on the purple wire). Make sure you connect the ground lead on your test light to a known good ground first and then connect it to the ground terminal on the guage itself (black/tan). This verifies power and ground to the gauge. Next, use a jumper wire to connect the "sender" terminal (white/tan) to the "ground" terminal (black/tan). If the needle goes to the full UP position, the gauge is good.

        To check the wiring in the boat: Take off the motor cover and find the leads from the trim sender. Unplug them, and with the key turned on, jumper the motor-side leads together. If the needle goes to the full UP position, the boat wiring is good.

        To test the sender: Hook an ohm meter between the leads from the sender and move the arm up and down, if ohm meter needle moves, sender is good.
        Beer is like porn, you can buy it but it's more fun to make your own

        I have to bend over too far

        I get a boner.

        bareback every couple of days, GTG. Bareback, brokeback, same $hit!

        I joined a support group to help me deal with my social anxiety but I just can't seem to work up the nerve to go to a meeting......
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        • #5
          Originally posted by thughes View Post
          Always clean and tighten all wiring connections prior to any troubleshooting on a boat's electrical system.

          The trim sender is nothing more than a potentiometer and the trim gauge is nothing more that an ohm meter. The trim sender simply varies resistance to ground, making the needle move.

          To check the gauge: With the power to the gauges on (key on), use a test light to verify that you have power to the gauge (12V on the purple wire). Make sure you connect the ground lead on your test light to a known good ground first and then connect it to the ground terminal on the guage itself (black/tan). This verifies power and ground to the gauge. Next, use a jumper wire to connect the "sender" terminal (white/tan) to the "ground" terminal (black/tan). If the needle goes to the full UP position, the gauge is good.

          To check the wiring in the boat: Take off the motor cover and find the leads from the trim sender. Unplug them, and with the key turned on, jumper the motor-side leads together. If the needle goes to the full UP position, the boat wiring is good.

          To test the sender: Hook an ohm meter between the leads from the sender and move the arm up and down, if ohm meter needle moves, sender is good.
          Thank You will check everything you mentioned once I get a meter and when I am able to bend and get under the dash to check the gauge..Hopefully it maybe just a bad ground connection,I seldom would look at the gauge I just usually just turn around to check the position of my motor but it be nice if I can get the gauge to work since there is a gauge there on my boat,this is the last thing I need to fix I think so far on my boat,,.
          I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft

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          • #6
            sounds like no +12v to the gauge, Clarence..
            good to see You posting, bud ..
            sic semper boogaloo
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            • #7
              I finally had a chance today to see if I could find out why my Trim/Tilt gauge was not working and found out after doing some testing that the gauge was bad,so I like to know will I need to buy the exact type of gauge that is bad to replace it or will any Trim/tilt gauge work? If you need to know my outboard motor is a 1989 Evinrude 70 hp VRO..
              This is not my picture but my gauge looks exactly like this one..


              I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft

              Comment

              • #8
                I know absolutely nothing about boats, but my guess would be any trim/tilt gauge that runs on the same voltage would work just fine. But I don't know nuttin'
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                • #9
                  No, not just any gauge will work. Johnson/Evinrude/OMC and some Suzuki gauges work the opposite of everything else on the market. While you can purchase a non-OEM aftermarket gauge, you just need to make sure it is designed to work on your make/year engine or the gauge will work backwards.
                  Beer is like porn, you can buy it but it's more fun to make your own

                  I have to bend over too far

                  I get a boner.

                  bareback every couple of days, GTG. Bareback, brokeback, same $hit!

                  I joined a support group to help me deal with my social anxiety but I just can't seem to work up the nerve to go to a meeting......
                  • 2 likes

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                  • #10
                    Originally posted by thughes View Post
                    No, not just any gauge will work. Johnson/Evinrude/OMC and some Suzuki gauges work the opposite of everything else on the market. While you can purchase a non-OEM aftermarket gauge, you just need to make sure it is designed to work on your make/year engine or the gauge will work backwards.
                    Thanks thughes,I did not think so,I was in contact with a guy who is a parts manager for Evinrude/Johnson/Boats and other parts,I gave him the S/N of mine and he had a new one he sold me for $25.00 shipped to me he is from Alabama he told me I should have it Saturday,All I can say it is going to be kind of a pain in the butt to take out and install the new one as you know it is going to be tight corners especially on my back under the dash to get at..reason being is it is way up in the dash not towards the bottom where I wish it would be,but will get it in just going to take my time and take some photos of how the old one is install so I can use as a reference to install all the wires in the correct place.
                    I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft

                    Comment

                    • #11
                      Hello everyone,I got a new trim/tilt gauge and installed it and my gauge still does not work so I am not sure what else to check granted I only check to make sure there was power going to the gauge and there was,so now I have to figure else what to check,if anyone knows what else I can check please let me know,I know the lever that is on the motor that does move freely up and down so I know it should not be that part I would think,there is I think a ground wire and 2 other wires that run the gauge that send a signal to the gauge that tells me if the motor is up or down..

                      So if anyone knows anything about trim/tilt gauges could you please tell me what I can check to see if I can get this problem solved..Or if you know of any good videos that can show me how to test everything to get my gauge to work..

                      Thank You
                      Clarence
                      I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft

                      Comment

                      • #12
                        you need to measure the Voltage coming back from the resistor in the tilt "paddle"
                        sic semper boogaloo
                        • 1 like

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                        • #13
                          Originally posted by Norm DeGuerre View Post
                          you need to measure the Voltage coming back from the resistor in the tilt "paddle"
                          Thanks will have to figure how to go about doing that..

                          I could probably could get away with a 52 inch shaft but if I could get a 54 inch shaft that would be great as I could always adjust the length of the shaft

                          Comment

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