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Old 18 August 2014, 03:18   #1
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Power tilt and trim

Power tilt fault
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Old 18 August 2014, 03:23   #2
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Just took the new rib out a 6.5 humber with a 115 efi mercury and i think there maybe a problem with the power tilt and trim.it will till fully up and down fine but when under power the engine pushes down to half on the trim gauge on its own.dos it just need the fluid topping up or is it something more sinister???
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Old 18 August 2014, 03:54   #3
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When you say it pushes down to half on the gauge, do you mean that the engine is physically moving down, or just the indication on the gauge that changes?
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Old 18 August 2014, 04:00   #4
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The engine moves down
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Old 18 August 2014, 04:44   #5
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Try topping up the fluid first. Sounds like air in the system. My thoughts are how did the air get there. Can you see any fluid anywhere. Where did the fluid go. Could be internal seals but that's rare
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Old 18 August 2014, 04:48   #6
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Quote:
Originally Posted by biffer View Post
Try topping up the fluid first. Sounds like air in the system. My thoughts are how did the air get there. Can you see any fluid anywhere. Where did the fluid go. Could be internal seals but that's rare
Could be the manual release valve that's either not tightened up or leaking.
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Old 18 August 2014, 04:52   #7
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Dont seam to be any fluid leaking anyware ill try topping up and see what happens where is the manual release valve?
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Old 18 August 2014, 10:46   #8
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Usually on one side or the other (duh) towards the bottom of the rams. Usually a largish flathead screw affair. Don't have your head beneath the motor while loosening.

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Old 19 August 2014, 14:37   #9
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Well just pulled the manual release valve out and it has two o rings on it and also a groove on it for what looked like another o ring so googled it and there are pictures of the valve with 3 o rings.dont know if there are diffrent types with 3 and two o ring.
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Old 19 August 2014, 14:38   #10
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