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Old 07-07-2017, 11:48 PM   #1
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Country: Sunny Scotland
Location: Fife
Occupation: Man of lesure
Interests: Ice Hockey/Floorball/Skating/Boats
Boat name: Efamol
Boat make: Ring 18
Engines: Merc Xr2
Cruising area: Scottish Loch's/River forth

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Location: Fife
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Trim and tilt issues

Hi guys, I have an old mercury 200hp black max late 80s early 90s. The problem I'm having is when I trim engine up it drops down by its self pretty quickly, does not seem to be any leakage from any of the seals on the trim unit. Does have a slight hesitation on going up when you start to trim.
Can anyone help as I'm beat
Thanks
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Old 08-07-2017, 06:51 AM   #2
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Country: Uk
Location: Cheadle
Boat make: Excel 330 SD
Engines: Tohatsu 9.8
Cruising area: North wales

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Could be the manual release valve, I had a similar problem and it was this

http://www.mareng.co.uk/mercury-power-trim-release-valve-893929a01-p-1998.html
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Old 08-07-2017, 10:13 AM   #3
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Country: Sunny Scotland
Location: Fife
Occupation: Man of lesure
Interests: Ice Hockey/Floorball/Skating/Boats
Boat name: Efamol
Boat make: Ring 18
Engines: Merc Xr2
Cruising area: Scottish Loch's/River forth

Join Date: Sep 2013
Location: Fife
Posts: 76
Thanks for the reply, I will look into that, can I ask if you know where this is located in the engine plz.

Thanks again
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Old 08-07-2017, 08:10 PM   #4
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Country: England
Location: Lymington
Boat make: Pascoe SR8
Engines: Yamaha 300 HPDI
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I had pitting in the ram rods and water got into the oil. Then took a while for pressure to build for the trim to work. New rams and caps sorted it the first year.
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