wrote in message
ps.com...
It does have some. I forgot to mention that it is on a 1988 mercruser
I/O with Alpha 1 stern drive.


My book says;

"Hydraulic problems'
Unit will not trim up or out
1- Fluid level low
2- External leak
3- Internal cylinder leak
4- Low pump pressure
5- Reverse lock inoperative
6- Internal resistance
7- U-joints "frozen"

I have assumed hydraulic problems since you can hear the hydraulic motor.

You may need a manual to go further.

Good luck.