I resently purchased a 18 foot Center Cosole to go fishing on. The boat included a 1985 Johnson 90 hp V4 2 stroke engine. The boat ran great. Everything was working. However, the tilt trim system started making a clicking noise when i would raise and lower the engine. I asked around and everyone told me it was the hydrolic fluid and it was low. So I decided to add some more. However the nextr time i went to lower the motor it went down alright and then when i went to raise it nothing happened. The tilt system made no noise when i pressed up but made a whine when i pressed down. The engine didnt move either way. Now i cant even put the fluid in because the engine is locked down. Is there something locking the engine down? Or is there something else broken on the system?<br /><br />Thanks