1996 Mercury 150 EFI - Tilt cylinder not holding pressure.

[Theoutdoorsman]

When I tilt the outboard all the way up (or any height above full trim) the tilt cylinder will not hold the outboards weight. It will slowly fall until it meets the trim cylinders, at which point it will hold. I need to check the fluid level to rule that out. Is this the fill screw for the system? I'm pretty sure I know the answer. I would just like to be sure before randomly turning screws. I'm assuming it's full when it runs out the top with the outboard at full tilt, correct?

 

[Theoutdoorsman]

When I tilt the outboard all the way up (or any height above full trim) the tilt cylinder will not hold the outboards weight. It will slowly fall until it meets the trim cylinders, at which point it will hold. I need to check the fluid level to rule that out. Is this the fill screw for the system? I'm pretty sure I know the answer. I would just like to be sure before randomly turning screws. I'm assuming it's full when it runs out the top with the outboard at full tilt, correct?

View attachment 409521

 

[Theoutdoorsman]

Also, can I use the tilt n trim fluid at the local wally world in this system, or?