peterkvs
Active Member
I have a 99 400 DA. After a few months of operation the trim tab reservoir leaks down to where the tabs won't deploy enough to keep the bow down at cruise. So obviously it is leaking. I've inspected everything and can never find a drip. When the boat was hauled I inspected the actuators and they were not leaking. Here's the impossible part. The pump is mounted on the transom in the center of the boat. The tabs are about 5' either side of the pump. The fluid lost from the pump gathers half way between the pump and port tab, right behind the rudder post. If I put an absorbent pad there it wicks up all the fluid. But that area is a high spot along the transom and there are stringers either side of that spot that show no sign of fluid. So how the heck is the fluid getting to the absorbent pad, the only thing that traverses the area is the tubing that runs between the pump and tab, and I've replaced that. Also it doesn't leak unless the boat is driven. The pump pressure isn't enough to make it leak, so I am assuming the pressures are higher underway on occasion.
Anyone have any similar experiences and possible solution?
Thanks,
Pete
Anyone have any similar experiences and possible solution?
Thanks,
Pete