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Old 13-06-2018, 06:21 PM   #1
Jai
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Country: Guernsey, Channel Islands
Location: Guernsey
Occupation: Landscaping
Boat name: soon to be 'Grey Sea'
Boat make: Phantom 21
Engines: Mercury 2.5, 200hp
Cruising area: Channel Islands

Join Date: Apr 2016
Location: Guernsey
Posts: 18
Trim Issue

Hi everyone,

Iím having problems with my trim on my 200 Merc.
The trim pump works fine up and down, but if I leave the motor trimmed up overnight I can go back to it the next day and it be trimmed right back down again..... Iíve just replaced the hoses and bled the system and no leaks anywhere not even on the trim ram seals???
Any help to troubleshoot would be great!!

Cheers Jai
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Old 14-06-2018, 09:34 AM   #2
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Country: UK
Location: Leigh-on-sea
Occupation: IT Director, www.lighthouseit.co.uk
Interests: Boats, Surfing & Snowboarding
Boat name: Isabella / Cool Runnings II / Bella / Naviagtor III / Speedy / Speedy II
Boat make: Colvic 35 Suncruiser / Phantom 16 / Navigator III / Spitfire 9/ Apollo 9
Engines: 2 x Perkins Sabre 225ti / Mercury Pro XS 115/ Tohatsu 2.5 / Mercury 25 / Tohatsu 18
Cruising area: Thames Estuary / River Crouch / Salcombe

Join Date: Jun 2004
Location: Leigh-on-sea
Posts: 916
Quote:
Originally Posted by Jai View Post
Hi everyone,

Iím having problems with my trim on my 200 Merc.
The trim pump works fine up and down, but if I leave the motor trimmed up overnight I can go back to it the next day and it be trimmed right back down again..... Iíve just replaced the hoses and bled the system and no leaks anywhere not even on the trim ram seals???
Any help to troubleshoot would be great!!

Cheers Jai
There is a manual screw to release the pressure if the hydraulics fail is that tight left hand side I think where the leg joins about transom height???
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