[WonByLand]

Hello All!... A newbie here after just purchasing a 1998 4000 express 2 days ago and yes, we have some things to fix! 
I "hear" some operation when I press the switches for the tables (frozen?) and engine hatch and my trunk works fine. 
But now my engine hatch is stuck in the up position... I believe I am hearing the pump (whirring sound) but no movement of the hatch. 
I also see some fresh fluid at the base of the port actuator

I was thinking my fluid might be low and will check that shortly. 
Maybe the directional valves? 
Will I be able to lower the engine hatch by opening the relief valve? 

If anyone has any insights I'd appreciate it! - Thanks

[bruce@bigrivergroup.com]

I "hear" some operation when I press the switches for the tables (frozen?) and engine hatch and my trunk works fine. 


Good morning.  2001 4000 Express owner here.  Had a lot of trouble getting tables to raise.  Lubed the heck out of them, troubleshot them, but no progress.  

On my boat, it appears that that the cockpit hatch hydraulics raises a half-inch or so & will not stay in a totally "down" position.  To raise tables, touch the switch to TOTALLY lower the cockpit hatch, then have someone put a finger under a corner of the table halves where they come together to give them a "start".  Have someone else then raise one table at a time.  May need to repeat the finger lift on the remaining side. Be careful!

Not sure how to address the trunk hatch, except to mention that the breaker panel lower & to the right of the helm contains a fuse for that.  Mine was very corroded, as was the power to that entire breaker panel.

Good luck!

[jmk]

To the OP, most likely you have a leak in the line feeding the upper connection on the hydraulic cylinder that raises the engine hatch. Tiara uses mostly “double acting” cylinders, which require pressure to close. You may have also lost fluid, which will need to be replaced but will not solve the problem. The directional valve is working in one direction since the table lifts. By design this makes it extremely unlikely that it is stuck moving in the other direction. Look for a leak.


Sent from my iPhone using Tapatalk

[WonByLand]

Thanks for the replies guys... Got the engine hatch back down just fiddling with the switches. And yes, I believe I have a leak in the upper port side actuator fitting.

Safe boating !