Merc 40HP -97 trim/tilt issues

bastasweden

Recruit
Joined
Jul 28, 2021
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1
When I brought out my boat from vinter storage a couple of months ago the trim/tilt would barely move the motor and immediatly fall down. (no visual leakage and reservoir full)

After checking the service manual I swapped out the manual release valve, inspected and cleaned the checkvalve/poppets. I also tried replacing the 3 big o-rings on the cylinder.

After cycling the t/t 10-20 times on the workbench I reinstall the t/t on the outboard and it kind of works. But as soon as it comes close to the full down position it just looses all pressure or something and just sags down.


 

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