BENNET TRIM TABS

[toddmangin]

I have a strange situation going on with my Bayliner. When I look off the swim platform before I board the boat I notice no oil sheen in the water. The second I step on the platform I can see a sheen come up. Obviously the drive is submerged and so are the lower part of the trim tabs but the top part of the tabs don’t go under water until I step on the platform.
Seems like maybe a leak in the top part of the tabs but I see no oil at all.
It’s very confusing.

 

[Bondo]

Ayuh,..... Welcome Aboard,..... Is the oil low in the tab pump, or the drive,..??

The tops of the tab struts are solid, except for the fitting inside the hull,....

 

[alldodge]

What's the oil level at the trim pump?

 

[cptbill]

There's a line on the reservoir

 

[dingbat]

Could be a leaking trim pump hose (Stainless) or fitting.

If that isn't the case, more than likely the o-rings in the piston heads of the trim tab actuator(s) have gone bad.