Tilt question on a 1986 75hp

[fishin4thebig1]

1986 75hp mercury 4 cylinder I can only get the 2 little cylinders to work is there a different switch for the big cylinder so I can pick up the motor for transportation I just got this motor and I've never had power trim so I am a green horn at this thanks guys and gals

 

[wrench 3]

The three ram system doesn't use a limit switch. It only has the one switch. But the pump has to work harder to run the big cylinder. Can you still hear the motor running when it stops lifting.

 

[fishin4thebig1]

Yes the pump keeps running but motor stops

 

[wrench 3]

You have a hydraulic problem. It's hard to say if it's a worn pump, a bad relief valve or a seal or "O" ring without pulling it apart.

 

[GA_Boater]

Not familiar with your TnT, but start simple. Check the fluid level, it may be low.

 

[wrench 3]

Not familiar with your TnT, but start simple. Check the fluid level, it may be low.

Very embarrassed that I neglected to mention that:facepalm:. But on that subject, the engine has to be tilted all the way up before you remove the fill plug. Otherwise the oil reservoir will be under pressure.

 

[GA_Boater]

Very embarrassed that I neglected to mention that:facepalm:. But on that subject, the engine has to be tilted all the way up before you remove the fill plug. Otherwise the oil reservoir will be under pressure.

We all work together, Wrench. :smile:

 

[fishin4thebig1]

It's full of fluid the pump sounds like it's pushing pressure but as soon as the 2 little cylinders stop that's it but the funny thing is that it will pull the motor down really hard can't move it

 

[wrench 3]

It could be a valve problem but it's designed to hold it down under a lot more pressure than you can apply by hand. You'd need to have it in the water with fairly high throutle in revers to tell if it's going to trail out.