Trim

[Dr Doof]

Hello

When I was out today my engine trimmed down on its own every time I accelerated.

I've tried nipping up the manual release but its still the same.

Does anyone have any idea why this would happen?

Thanks

[Jizm]

Originally Posted by Dr Doof

Hello

When I was out today my engine trimmed down on its own every time I accelerated.

I've tried nipping up the manual release but its still the same.

Does anyone have any idea why this would happen?

Thanks

Do you lose any hydraulic fluid at all?

[Dr Doof]

No, no fluid lost.

[sburt10]

What engine is it ?

I think some, Mercs and Mariners for instance have a feature that trims you down if you throttle hard when the engine is raised too high, could it be a problem with this ?

[mick]

Same thing happened to mine fluid leaked out so I bit the bullet and am getting them fixed at great expense the seals were worn but it was pitting on the rams that was spoiling the seals so pointless just putting new seals on but it should be ok for sometime when done.

[Dr Doof]

Its a Mercury 125hp elpto.

It happened under normal acceleration.

[Mollers]

The fluid is bypassing the ram seals, we had the same prob with the BF50. We changed them at work, it was a bit of a faff.

[Dr Doof]

Thanks, I'll check the seals.

[Boats&Outboards]

Easy things first.

Top up fluid and bleed system (trim down/up then release the cap, top up and retrim until all the sponginess is removed) adding fluid if you can. Then try raising or pushing down engine by hand to see if you have any movement on the ram. Then move into seals etc if still needed. May get lucky and find it just needed bleeding

Peter ~ Boatsandoutboards4sale ~ askboatsandoutboards4sale@sky.com ~ 07930 421007

[jezza2011]

and dont forget the trim switch.
check its all ok.
Mine wore out and raised /lowered the engine on its own.