Loud Rhythmic Clicks Trimming Down at speed

[Bob]

I have a '97 90 HP 2 Stroke that has begun to click loudly when trimming down at planing speeds. This does not occur at slow speeds? It is a rhythmic click about 4 times per second. Hydraulics?? Please advise and thanks for your time and experience Bob T.

[boats.net]

Try putting grease on end the short trim rods on power trim unit where it comes in contact with motor bracket.