I have experienced this in the past (simply replaced the o-rings) and now they are leaking again. We just replaced them last year, thats what is frustrating. Anyone have similar experiences?

Last time we replaced them I ensured that the cyclinder bodies were free of debris and/or gouges. Am I missing something? Its a simple hydraulic piston with a spring and two seals...Please advise.

Saltwater use? Are the shafts free of nicks and pitting?

that i can see yes and yes. one thing to keep in mind is that they are plastic.

2fast9tech2, I just removed my entire Bennitt system from my 2007 292 Fastech. Only had 110 hours on them, in perfect shape, except the paint is coming off the plates. Let me know if you're interested in the (4) cylinders or the pump.........it'll go cheap.....dave

Pm me with price. Thanks