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1990 Evinrude 50hp trim/tilt question
Turpin	#1  Posted on 03/11/13 - 1:20 AM
Member Personal Page Project Albums Posts: 434 Comments: 20 Joined: 07/04/08	I have noticed that the trim/tilt motor or pump is making a strange clinking noise when i lower the motor. I have also notice that it will not make this noise when the temperature is warmer (60ish) or when you raise the motor, only during the lowering. I have tried spraying silicone on the pump shaft but no help. Any clues as to what this sound could be from. I guess I should also add that the trim systems seems to working great other than making the sound. Edited by Turpin on 03/11/13 - 3:23 AM 1963 13' Sport 50hp Evinrude Maintaining a level of sanity that is socially acceptable
Tom W Clark	#2  Posted on 03/11/13 - 8:19 AM
Member Personal Page Posts: 4280 Comments: 7 Joined: 09/30/05	Are you sure it is the trim pump- and not the motor's mounting brackets beginning to seize on the tilt tube? I had the except same thing happen to one of my Mercurys. Grease was the solution.
Turpin	#3  Posted on 03/11/13 - 4:06 PM
Member Personal Page Project Albums Posts: 434 Comments: 20 Joined: 07/04/08	I'll give it a look, that makes since as it sounds like an external sound. Thanks 1963 13' Sport 50hp Evinrude Maintaining a level of sanity that is socially acceptable
Turpin	#4  Posted on 03/21/13 - 7:29 AM
Member Personal Page Project Albums Posts: 434 Comments: 20 Joined: 07/04/08	I installed two new bushing for the trim/tilt pin (one was broken) it seem to cure the problem. I still get an initial clink but that's it (nothing like the constant clinking) so I'll remove the top pin and re-grease it also. Many thanks. 1963 13' Sport 50hp Evinrude Maintaining a level of sanity that is socially acceptable
Turpin	#5  Posted on 03/27/13 - 6:16 PM
Member Personal Page Project Albums Posts: 434 Comments: 20 Joined: 07/04/08	Well I spoke to soon, I thought the problem was cured but it seems I have not locate the source of the sound. With warmer weather around the corner I may not find it. I tried using a stethoscope but could only isolate the sound was closer to the bottom of the unit. I did notice that after raising and lowering the unit a few times the sound would go away, let the unit set for a few minutes and the sound was back. 1963 13' Sport 50hp Evinrude Maintaining a level of sanity that is socially acceptable