slow trim

psehunter

Seaman Apprentice
Joined
Jan 18, 2008
Messages
33
Just got a 1985 90hp rude ,running good now after a few problems,but has the slowest trim I ever seen,will changing the fluid help speed it up,any ideas?
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: slow trim

are you sure you have full voltage to the pump, corrode connections could be degrading the power. you could just have pump going bad.
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: slow trim

Check the oil resevoir level first thing, ensuring it is full.

If full, is the motor running at normal speed? If it is, it is likely an internal valve or passage way blocked,or the pump, in which case a manual with the proper hydraulic testing will be needed. If it is not, and sounds to be running slower than normal, check battery voltage and the connections for corrosion. If that checks out, remove the motor from the manifold and now run it in both directions. If the motor still does not run at normal speed, it will definately need to be replaced or rebuilt, hopefully the latter, since it will be cheaper. If it now runs at a normal speed however, turn the pump by hand and check for binding. The pump will likely be the culprit now.
 
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