Trim sending Unit

[Dan fuhrman]

Hello all,

Ijust replaced my trim limit and trim sending units , I am having trouble with the new trim sending unit . I have aligned the center cog with the mark on the sender as instructed and inserted sender in to the out drive as instructed and have adjusted the sender so the gauge needle is on the down mark with the lower unit in the full down position , I secured the sending unit with the 2 screws to the out drive as instructed . When I trim up the gauge needle does not move it stays on the down mark on the gauge no mater if the out drive is in the up or down position. I took the sending unit off and turn the center cog by hand and can move the needle any where I choose on the gauge so i can see the problem is not in the gauge , i have inserted back into the out drive and tried again with the same result . No sure what i neeed to do ? Any help would be appreciated. .

 

[kenny nunez]

The socket head bolt is loose and may be corroded in the hinge point of the gimbal ring. Get a 1/2” Allen wrench and try to tighten it.
That is the only thing that turns the sender.

 

[Dan fuhrman]

The socket head bolt is loose and may be corroded in the hinge point of the gimbal ring. Get a 1/2” Allen wrench and try to tighten it.
That is the only thing that turns the sender.

YEs just tried that and it wouldn’t budge either way , I did how ever mark spline portion of the bolt and the gimbal ring on the limiter side which showed the bolt stayed still while the gimbal ring did move past that mark , I did that on the sender side and the bolt it moving with the gimbal ring which would explain why once mounted the sender is not being turned independently from the housing , Correct ?

 

[kenny nunez]

The first versions of your model did not have zerk fittings to grease the pivot points. There was a service bulletin where the bolt had to be removed then drill through, tap the hole and screw in the zerk fitting. Try to back the screw out some so that the corrosion may loosen up. A length of 1/2” pipe on the end of the allen wrench should work. Then re tighten the bolt. The threads were coated with Loctite originally but the corrosion broke it loose,

 

[Dan fuhrman]

The first versions of your model did not have zerk fittings to grease the pivot points. There was a service bulletin where the bolt had to be removed then drill through, tap the hole and screw in the zerk fitting. Try to back the screw out some so that the corrosion may loosen up. A length of 1/2” pipe on the end of the allen wrench should work. Then re tighten the bolt. The threads were coated with Loctite originally but the corrosion broke it loose,

Great thanks , i do have the Zerk fittings so i am going to grease it try what you suggest , im confident that will work. . Thank you for your help .

 

[tank1949]

YEs just tried that and it wouldn’t budge either way , I did how ever mark spline portion of the bolt and the gimbal ring on the limiter side which showed the bolt stayed still while the gimbal ring did move past that mark , I did that on the sender side and the bolt it moving with the gimbal ring which would explain why once mounted the sender is not being turned independently from the housing , Correct ?

with wires connected and united removed from ring, move sender by hand to see if needle moves. You may have damaged wires somewhere??????