Trim motor or starter solenoid~?

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Hope anyone can help me on this. I have 90' Force 90hp. 2weeks ago water got in to my trim system and I bleed several times until only oil was coming out. but when I was bleeding the trim system, trim motor was making grinding like sound with a lot of heat and no power at all. I had to do manually by lifting the outboard by hand up and down with the aid of trim motor. But the problem started right there. Motor got stock up high and trim motor stop working completely. So, I tried to crank the motor to check the starter, and its not working either. Just to get out of my paniqui situation,,, I replaced both relays but its not working either. I mean, its not even clicking or making any sound. Could it be starter solenoid~?
If anyone knows what the problem is, I would appreciate it a lot.
Thanks in advance~!
 

notsunkyet

Petty Officer 2nd Class
Joined
Jun 8, 2009
Messages
198
Re: Trim motor or starter solenoid~?

Ok do ya have good power? at the switch on both sides of it (up and down). too much fluid? this will cause hydrolock. (take the fill cap out and see if you can get it down by working the switch up and down in small increments
. Or it sounds like rust/corrosion in the trim motor. take the 2 bolt/screws out of the trim motor and take JUST THE MOTOR off. the armeture will probably either stay in the pump or fall out of the housing. take care not to rip the rubber seal ring that is under the motor housing.
after getting it off look underr the top cap. is there a set of contacts there? if so are they clean or corroded or pitted? clean them up with point file or a good emory file from the wife's stash of finger nail stuff. next clean the contacts on the armeture where the brushes hit on with some emory cloth... dont get carried away just to new clean copper.
Now look at the brushes... (little black things with springs) and are they short? say inder 1/4 inch? if so there done. take it to a starter rebuild shop and see if they can get some to fit in it.
reassemble and try it again.
 

Banditz

Petty Officer 2nd Class
Joined
Apr 21, 2010
Messages
168
Re: Trim motor or starter solenoid~?

Not being an *** here, but as far as the engine goes...are you sure the control is in neutral? You may be hitting the safety switch...

As far as trim. i have no clue.. Sorry..
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

Notsunkyet~!
Thanks for your quick reply. You maybe right on the trim motor and I will definitely check into it Tomorrow. But I still have question... I am not getting any juice to trim motor nor starter motor even after I replaced both relays. Could it be starter solenoid~?
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

Banditz~!
It all happend while I was bleeding the trim motor out of boat. And I did rechecked on shift, ignition keys, fuses, etc. What is going on with this *** motor~*&^%#$@~?
 

lithstrip

Cadet
Joined
Apr 7, 2010
Messages
10
Re: Trim motor or starter solenoid~?

Check for a circut breaker near the solenoid, my 89 125 has one for the trim system
 

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: Trim motor or starter solenoid~?

my forces would not crank when tilted. I never put any effort into finding out why since I never had reason to crank them while tilted. The trim could be the circuit breaker mounted to the side of bottom pan near starter. However, I think it is more likely that your trim motor is trying to die. Grinding noises coming from motor almost always means that your magnets are coming loose. The more you use the motor then the more expensive it will become to rebuild it. You've probably already lost the $30 option and up to the $100+. Grind the magnet into enough small pieces and you'll be at the $250 level for a whole new motor.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Trim motor or starter solenoid~?

There is normally a 20A fuse under the engine cowl to protect the engine electrics. As was also mentioned, there may be a circuit breaker instead of the fuse.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

RRitt;
Thanks for your easy to understanding guide. How easy we forget basics sometimes. Your comment does make sense...it will not crank while its tilted. I will take apart trim motor later today and will write the results here.
See ya soon. Thanks.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

Silvertip;
Thanks for your comment. Mine has 10amp fuse and its not blown. And I don't see any other posible breaker anywhere other then relays & solenoid.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

notsunkyet;
I opened top part of trim motor and checked the brushes. They look okey. Just some debries from the sides of coil pack. I cleaned them anyway since I got it open. So, now what~? WHATELSE CAN I CHECK~?
 

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: Trim motor or starter solenoid~?

There should be a 20A circuit breaker between starter solenoid and trim relay. If you can not find the breaker then check voltage going into relay contact #87. It should be 12v at all times.

It is possible but very difficult to tie the brushes back with dental floss and then pull the floss out after the cap is back in place. I fix a tone of motors where people "peek inside" and then crack the circuit board trying to get it back together. It is a n easy thing to break. If it doesn't slip right into place then start over. Always use new orings and sealing washers. Silicone sealant is worse than nothing. It does almost nothing to keep water out of motor but does have a habit of shedding small bits of debris. New gaskets. Always.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

RRitt;
I don't know how you do it. Its so hard to put them back together, its almost imposible. I spent last 2 hours, just trying to put them back, but no luck. I am buying a new one from ebay for $158 including shipping charges.
My short, fat fingers are just not good for this kind of work. Besides, its thundering, lighting outside now, I don't want to get fried.

Let me try to find that breaker, and I will get back to you guys.
thanks~!
 

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: Trim motor or starter solenoid~?

RRitt;
I don't know how you do it. Its so hard to put them back together, its almost imposible. I spent last 2 hours, just trying to put them back, but no luck. I am buying a new one from ebay for $158 including shipping charges.
My short, fat fingers are just not good for this kind of work. Besides, its thundering, lighting outside now, I don't want to get fried.

Let me try to find that breaker, and I will get back to you guys.
thanks~!


unwaxed dental floss. you tie the brushes back with dental floss then you put cap on and line everything up. Before tightening down the bolts you snip the floss and pull it out. I built a specialized tool for my shop but dental floss works equally well - just be patient and methodical. Don't force anything, don't improvise, and don't substitute materials. Slow and steady wins the race.

what kind of motor is that? i'm always in market for original equipment 2w cores.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

Now I start to see some pictures of how you do this... but I am not sure of myself. This requires artistic talents.
Well, Tomorrow I will try for the last time.
You mean the trim motor~? Its "Sierra 18-6777" Shows manufacture date as "05/15/06"
 

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: Trim motor or starter solenoid~?

just do one brush at a time. pull it back and tie it down. then other brush. making sure that your loop doesn't turn into a noose and slip up under the edge. if you are having trouble then stick a plastic bottle cap in to hold the brushes back while you secure the floss.

oh, NTY on core. can't use aftermarket. If, by chance, you have the original then I'd be interested. Core attrition is an ongoing problem.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

RRitt;
WOW~!
A plastic cap~!!!!
Thats a great idea. Thankyou so much~!:D
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

It worked~!
Unbelievable my short, fat fingers could do the job~! :D

A plastic soda cap and braided fishing line did the job.
Oh, as for the gasket, I found wide enough "O" ring from local plumbing store. Hope this one do the job.
I still need to figure out where the H is breaker~!!!!!
 

RRitt

Captain
Joined
Mar 30, 2006
Messages
3,319
Re: Trim motor or starter solenoid~?

there is no such thing as "good enough to do the job". It is either exactly right or it will cut down the life of your motor. If it was not a perfect fit square shaped oring then go to dealer and order them. New sealing washers too. The best ones are bonded aluminum sealing washers (#10). The ones that come with motor rebuild kits and from dealer are actually second best. They are plain steel and have a history of rusting. The inside of most motors is not painted and even condensation can get the rust started. If you're feeling industrious - painting inside of motor frame is a good thing.
 

Mula

Cadet
Joined
Jun 16, 2010
Messages
14
Re: Trim motor or starter solenoid~?

Does anyone know where I can buy 20amp circuit breaker~?
I checked ebay, west marine and here, iboats. But no one has it.:(

By the way, you guys were right about circuit breaker. I replaced relays, rebuilt trim motor & put the new trim motor as well, and solenoid but still don't work. So, I guess you were right.
 
Top