Alpha One Trim Motor Pump Issue

[Lubeboy]

Okay... We have said outdrive, the trim moves very slow up and down. I tired to hot wire the pump by connecting hot wire directly to up and down wires on pump motor (it is three wire)... it does the same thing, so assuming the solenoids good... We took pump off boat, does same thing with another battery...

Here is trick... We took motor off the pump and hooked up to battery, it runs real fast...... hooked back up to pump and same slow movement...

By the way, the wires also get real hot when we hot wire...

Is motor bad, or pump, or both? What else can we check?

thanks as always.

 

[CheapboatKev]

Re: Alpha One Trim Motor Pump Issue

"said" outdrive?

Dont know that model...Please post what exactly we are looking at..

 

[Lubeboy]

Re: Alpha One Trim Motor Pump Issue

yeah, sorry...

We have a 1987 MerCruiser, with 5.7L 260HP V-8

We are trying to figure out what wrong with trim hydraulic motor/pump

 

[CheapboatKev]

Re: Alpha One Trim Motor Pump Issue

Well..You do say Alpha One in the subject..I'll give you that.

Do you have the OEM manual? If not you know you can download it at the front page on the top of this forum.

 

[Lubeboy]

Re: Alpha One Trim Motor Pump Issue

Yes thanks, I have manual, and have run through a pretty good troubleshooting effort... I am just at a point where MOTOR mechanics come in... I am trying to determine if I should try a new motor or new motor and pump.

thanks.

 

[Bondo]

Re: Alpha One Trim Motor Pump Issue

Ayuh,... It Sounds like the Pump, but still Could be the motor...
I'd just buy 1 of the New Style from SEI/ iboats,... It's plug & play....

 

[ENSIGN]

Re: Alpha One Trim Motor Pump Issue

Take a look inside the motor,If there's any rust or water it's time for a rebuild.

 

[betayv]

Re: Alpha One Trim Motor Pump Issue

if you need just the motor try ebay is couple of brand new for a good price if you need the complete pump, get it from SEI good price for a complete pump.

 

[jchapp]

Re: Alpha One Trim Motor Pump Issue

Did you find solution to your trim problem? I have similar problem with wires heating when jumping hot directly to motor lead.

 

[bigdan1]

Re: Alpha One Trim Motor Pump Issue

I have same problem with a 3.0L outdrive ...on mine it is the wires coming out of the outdrive in the engine bay that are rot !

noticed this when took the engine out for a refresh !

are they similar ?

 

[BAproject]

Re: Alpha One Trim Motor Pump Issue

Bad ground?

low fluid.....