yam f100 ptt problem

[nan-ber]

hi all, looking for a bit of help before i go in blinded fold, we ve a 03 f100 that when powering t trim down t engine only goes down by its own weight, sounds as if t motor is doing no work as regards pumping oil, its spinning fine and tilts t engine up no prob, its definetly on t hydraulic side because the engine will pop up out of the water once in reverse, any ideas thanks pat.

[Portholme]

If you look up f100 tilt and trim problems in google this comes up all over the world. I think it is a pair of valves that cause the problem. They cost a few quid but the strip down Could be pricey. Worth replacing all the seals etc at the same time. I went another route and bought a second hand one which I was very lucky to find. Still cost me about £700 by the time a local mechanic had hoisted the motor off to fit it.