99' Yamaha 90 hp Trim Rams not Moving in or out...

[jsboo72]

Anyone know why my trim rams are not going in or out? The tilt rod goes in and out like butter when i power it but the rams will not budge at the end of the up or down cycles. However, when i open the manual release valve the rams can be pushed in easily. there are no leaks coming from the unit anywhere. I have the unit on a workbench and have bled it entirely. I have taken the rams out (all three...trim and tilt) and all the o-rings/seals look perfect as well as the cylinder walls. I'm using Dexron tranny fluid, by the way.
Does anyone know what the culprit might possibly be? any ideas?

 

[jsboo72]

Nobody?

 

[99yam40]

I do not know for sure, but sounds like not enough fluid.

Did you fill up the cylinders as you put them back together?

 

[jsboo72]

I haven't put it back together yet as i didn't know what i might need to replace. The unit was full and i bled the crap out of it after i replaced the motor originally. I removed the unit from the motor and have it on the bench to bleed better but those trim rams are not budging. If i put it back together, assuming everything is ok (looks great to me), Should i fill the reservoirs with fluid before putting the rams back in? What's the trick? I've rebuilt a few t/t units before but never had this much trouble 'bleeding the system", if that's the cause. Thanks in advance!