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2001 Evinrude 150 tilt trim weird behavior

T

Thunderyacht

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I replaced my trim tilt unit, but it doesn’t work, no motor operation in either direction. When I put a meter on the wires coming from the engine I get 12.7v for each wire when the buttons at the console are pressed. When I hook up the wires to the motor, nada. When I directly hook the motor wires to a 12v battery the TT works perfectly. New relays on the Power distribution panel. If the switch on the engine, the one on the upper shroud for use when your out of the boat, were bad, would that keep the motor from working? I’m stumped.
 
I am going out on a limb here without a model number but mine, which is a 2000 JOHNSON 150 has a limit switch which regulates how much tilt. It is located under the steering bracket. You will have the same symptoms if that switch is sticking. I believe one bolt holds it in place and when I removed mine, sprayed it with rust check and triggered the switch manually a few times, my problem disappeared. Good luck
 
reiddo1 said:
I am going out on a limb here without a model number but mine, which is a 2000 JOHNSON 150 has a limit switch which regulates how much tilt. It is located under the steering bracket. You will have the same symptoms if that switch is sticking. I believe one bolt holds it in place and when I removed mine, sprayed it with rust check and triggered the switch manually a few times, my problem disappeared. Good luck
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I thought of that and cleaned it real well and the plunger moved fine. Is there a way to bypass that switch for diagnosis? Could I just put the 2 wires together? I was leaning toward this switch as the issue, but don’t want to throw more parts at it.
 
Follow the switch wiring by tracing the wires back to where they connect at the trim/tilt relay mount. Then check across the respective terminals in that mount for a closed and a open circuit with a voltmeter when the plunger is activated.
 
whatta life said:
i need a new til trim for my 150 . did you buy a new one or rebuilt form some where ?
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refurb. I got it on eBay. New ones are very expensive. The only reason I got the refurbished one is I destroyed the one I took off the engine trying to get 18 year old bolts out. Twisted everyone but 2 of them off even with a hot wrench and soaking.
 
So it sounds like you have voltage at the tilt motor through the wires, but the motor won't move. Yet the motor works with a direct hookup to a battery? Must not be getting enough current through the wires to run the motor. Check for a corroded connection somewhere. I would check the switch on the engine with an ohmmeter to see if it's okay. The switch from the helm and the one on the engine must be in parallel though, so one wouldn't affect the other unless it was stuck in the on position.
 
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We were thinking alike on everything. I thought there might be voltage drop some where too so I actually tapped the wires 3“ from the motor and that’s where I’m getting 12.7v. I have a new tilt limit switch on the way and I’m going to see if that resolves the issue. I’m also going to relocate the ground wire coming from the TT motor directly to another ground to see if that’s it, but I’ve been using the existing ground to test with meter and it’s been fine.

I’ve looked at everything including pulling the power distribution panel and checking for broken soldering. New relays and I’m getting power to motor, motor works when direct connect to power. I eliminated the switch on the upper unit covering as I figure if that were Tango Uniform the TT motor should still work from binnacle. I’ve tried to think of everything thus the title to my post. ��. Thanks for all the ideas, I greatly appreciate everyone’s suggestions and I’ll keep trying.
 
So, is the 3" from the motor where you also applied the direct battery connection? Can you apply battery further upstream to see where the connection drops out? Maybe if the helm switch terminals are accessible you can run the battery before and after the switch.
 
Well, after installing the new tilt limit switch and some additional troubleshooting, I’m 99% sure my power distribution board has a broken solder and is not allowing the circuit to complete. After this season I’ll send it in to be refurbished.
 
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