Mariner Optimax 125 PTT Problems

[Shog69]

My engine is trimming itself up and down and needs the power cut to it to stop it, booked into local dealer to get it sorted as its only 10 months old so still under warranty, anybody an idea what it could be?

[kerny]

Originally Posted by Shog69

My engine is trimming itself up and down and needs the power cut to it to stop it, booked into local dealer to get it sorted as its only 10 months old so still under warranty, anybody an idea what it could be?

Trim sender unit.

[jyasaki]

Sender unit? How would that power the pump motors?

I'd guess either a flaky switch (there are usually 2 of them - one at the helm and one on the motor itself) or a chafed wire or two.

jky

[Turbodiesel]

Wont be a sender, probably a dodgy trim switch, or relay.

[kerny]

Originally Posted by jyasaki

Sender unit? How would that power the pump motors?

I'd guess either a flaky switch (there are usually 2 of them - one at the helm and one on the motor itself) or a chafed wire or two.

jky

The maiden voyage on my rib my Etec 60 engine trimmed up on its own and kept running even with the ignition turned off ,so I had to turn off the isolator switch. I had it fixed under warrenty and I'm sure my dealer said that they had replaced the trim sender unit.

[Ribochet]

Originally Posted by Turbodiesel

probably a dodgy trim switch,

+1 for the trim switch - mine was the one on the throttle control - it happened 20 miles from home and I had to shut that engine down as it kept lifting out of the water

Way to go for a twin set up

[Shog69]

Will hopefully find out tomorrow. If i held the switch down opposite to what it was doing by itself it stopped, so if it was trimming up i trimmed down and that stopped it until I let the switch off again. Pain in the butt as I had a lot planned for the weekend.

Thanks for the replies

[PeterM]

I'd try pulling the trim relays....at least then it won't trim anywhere!

Or at least pull one at a time to try and find the problem....

[Chris]

Originally Posted by Shog69

Will hopefully find out tomorrow. If i held the switch down opposite to what it was doing by itself it stopped, so if it was trimming up i trimmed down and that stopped it until I let the switch off again. Pain in the butt as I had a lot planned for the weekend.

Thanks for the replies

You can try disconnecting the switch on the engine and see if it still does it. They are normally connected with a deutsch type connector, if it still does it try disconnecting the connector that will come from the remote control this should also have a plug that can be disconnected. if this stops it then try reconnecting the engine cowling switch if its stopped then problem found and you wont invalidate you wty in doing so.

[Shog69]

Trim Switch, will be fixed for next weekend