How to replace Mercury Optimax Trim tilt sensor replacement #boatrepair

How to replace Mercury Optimax Trim tilt sensor replacement #boatrepair

I replaced the trim tilt sending unit (tilt sensor) with an aftermarket sensor. The old one was physically broken. I started as anyone would, unbolt the two bolts to remove the sensor, put the old one, see where the cable goes and direct it the same way. The cable goes behind the two trim pistons to the right flange of the outboard motor mount, there there is a tiny hole in the metal motor mount where there’s also the cable to power the trim. You have to take your new cable which holds 3 wires with connectors, blue, yellow and black. You have to weasel one wire at a time in that tiny hole, the whole bundle will not go through. This was the easy part, now you have to get the wire cable into the engine, this was a struggle. It would have been best to remove the lower cowling, but I haven’t figured that out yet, I saw some other YouTube videos where there supposed to be 4 nuts holding the cowling together but me I am not seeing them all, and it seems that you need a long flexible ratchet. Anyways, I tried taping the old cable with the new cable and pull the old one to get in inside the motor, that did not work, the bundle is too thick to pass a rubber grommet which already has the trim power cable. That rubber grommet is like an entire finger deep in the cowling. I was able with a cross screw driver with one wire connector on top to direct one wire into that grommet and with long nose needle pliers then from within the engine compartment pull carefully that one wire and helping with the other hand to push the new cable up. That worked. But I also happened to push the rubber grommet out, and I could not get it back in. Because the engine is cram packed with cable bundles and that grommet location is deep inside. There you go. That was my journey in fixing the trim tilt indicator on my dash that did. It work and also my Smartcraft gauge always mentions it when the engine is running. Thanks for watching and reading. I document as I go with all the jobs I do. Hope you like it, I’m sure it helps someone out.

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