Power Trim/gimbal issue

danolindo

Cadet
Joined
Aug 12, 2012
Messages
7
mercruiser 3.0 with alpha one gen one drive. 1990 maxim 17ft.
So i've been reading along the forum (first time boat buyer by the way, got it running last year via this website. You guys have been beyond remarkable) and I really cant find an answer to my power trim and gimbal issue. Anyone got an idea?
1) Power trim: The trim has no problem going (via the switch on the throttle). Sounds like the pump motor is running fine, plenty of fluid as well. But on the way up, dead. She wont go up, until i fire up the engine. Once the engine is on, it will "whine" and slowly go up, until it reaches about 30 degrees. Then it continues up at full speed. It seems like it's getting resistance. If i hit the switch and listen, I can hear a "click" at the tilt motor, but no movement or sound afterward. Idk if its my battery, solenoid, soul, bad karma, or what...

2) Worse issue: While riding down the river, especially at speeds 10mph and up, i get a nasty "grind" noise when I turn. The Ujoints are well greased and seem to move quite freely. I assume its the gimbal bearing. It has a little bit of a rough spin when I try by hand, but i didnt think enough to warrant replacement. Here's the question: Anyone know a way to remove the gimbal from an alpha one gen 1, without taking off the bell housing and replacing all the bellows? Im on a bit of a budget and need to save where i can. Also does it sound like a gimbal issue? Should I try just greasing the hell out of it first? (Sad to admit this, but I've had the boat for a year and never knew about the nipple on the bell housing for gimbal grease...i just did it by hand...ineffective i fear :| )
 

dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,346
Re: Power Trim/gimbal issue

1. sounds like a battery issue, with the engine running the alternator gives the battery enough charge to finish the job for the trim motor

are ALL connections/cables/wires clean and tight??

otherwise it may be a trim motor issue, just getting tired and in need of a rebuild

2. replacing gimbal?? do you mean the gimbal bearing?? - if so, then you do not need to remove any transom assy componenets to replace it, just pull the drive and use a three jaw puller/slide hammer to remove it

you can try greesing it but if its grumbly it probably need replacing, also a good u-joint inspection is needed, they too can make a lot of noise esp when turning
 

danolindo

Cadet
Joined
Aug 12, 2012
Messages
7
Re: Power Trim/gimbal issue

Thanks so much dubs. I was really hoping it may have just been a battery issue. It was the first time it was run this season and it seemed like the cranking amps may have been a little low. I'll get it charged and inspected.

Regarding the Ujoint...my understanding is they can be pricey to replace correct? possible to do it myself?

You guys are lifesavers.

Now if i can just fix the damn cracked oil pan...(enough epoxy and she'll eventually seal haha)
 

danolindo

Cadet
Joined
Aug 12, 2012
Messages
7
Re: Power Trim/gimbal issue

ya i saw that too...just cant pull the engine. got no way to do that.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,487
Re: Power Trim/gimbal issue

Thanks so much dubs. I was really hoping it may have just been a battery issue. It was the first time it was run this season and it seemed like the cranking amps may have been a little low. I'll get it charged and inspected.

Regarding the Ujoint...my understanding is they can be pricey to replace correct? possible to do it myself?

You guys are lifesavers.

Now if i can just fix the damn cracked oil pan...(enough epoxy and she'll eventually seal haha)

Ayuh,.... Welcome Aboard,.... There's a cross listin' of u-joints up in the Adults Only section, at the top of this forum,...

It ain't too bad of a job, ya pull the drive, 'n when off, yer lookin' at the u-joints....
 
Top