Trim tilt relay location 1989 evinrude 110v4

Airish

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Hello all. I am new to power trim and tilt. I am having a problem with my trim tilt not working it will click when it is in the up position but nothing in down position. I have been reading forums and from what I gather, I need to check the relays..problem is, I can't find them. Can someone please assist me in locating the trim tilt relays. I found a box with a solenoid in it in the battery compartment but no relays. Are the relays under the motor cowling somewhere? Thanks
 

racerone

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How many wires going to the trim motor ?---Is it 2 or 3 wires ?-------The 2 wire motors usually had the relays in a box mounted on the exhaust cover at the back of the motor.-----Do you have a model # for your motor ?
 

gonefishin485

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if possible, have someone else click the relays and listen to hear where the click is coming from. like racerone said, if it is a 3 wire pump it will have 2 relays under the cowling (or thats where their supposed to be) and if its a two wire pump it will have 1 solenoid for the up wire. if it has the 2 relay setup it makes sense that it clicks but doesnt move. if it has the single solenoid it should still go down, but wont go up if the solenoid isnt working properly.
 
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89 should have the relays under the cowling and be a 2 wire trim pump unless its been changed out since new. Find the trim motor on the transom and follow the wire to the relay box. Open the box and the wiring diagram is on the back of the box lid. swap the relays and test if problem is now reversed you have a one bad relay. If problem is the same do your self a favor and get a cheap volt meter so you can test the wires from the switch.

If you do not find a relay box it might be a old trim unit installed on the motor. If you follow the trim pump wiring and come to a solenoid that looks like a start solenoid then up uses the solenoid and down just uses the switch. (switch will be a heavy duty toggle not a push button type on the shifter). If up works then you will need to test the switch as down just uses the switch. this type is used with a 3 wire trim pump. Black to dc negative and green (grass) to dc positive should make the pump run and the motor should go down. Black to dc negative and blue (sky) to positive should make the motor trim up. Don't hook both the green and blue up to positive at the same time.

some times you will come across a odd ball as it may not be a factory trim unit or the trim controls are remote mounted. The trim pump might not even be mounted to the transom if this is the case then pictures would really help.

added: after reading original post you said it will click when you try to trim up. Do you mean you hear a click and nothing happens or do you mean you hear a click and the trim hydraulic pump running? If the pump doesn't run in either direction then you may have a relay, solenoid, bad ground cable, bad pump or a host of other problems which isn't a problem as we can advise you on how to trouble shoot it when we get more details of your trim unit.
 
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Airish

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thank you for all the information. I could not find any information about the solenoid set up, this info helps a lot. i got home and checked the trim motor wires. it appears to me to be a two wire pump, unless the two wires are sealed. there are no wires going into the boat motor and no relay box under cowling. the wires lead to a solenoid box in the bilge area of the boat. the clicking is coming from the solenoid box when the switch is in the up position. the motor does not run either way and there is no clicking in the down position. there is a toggle switch on the dash. I will check all the wires on friday when I have time.at least now i have somewhere to start. thank you all. I have pictures but cant get them to upload.
 

emdsapmgr

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Glenn has the correct info. You probably have the wrong electrical box for your trim unit. The two-wire trim pumps are the later ones. Your engine should have come from the factory with that version. They take use the control box that mounts on the back of the exhaust manifold inside the cowling. It has two RELAYS inside. The older (first version trim motors) were a 3-wire motor system. The three wire systems used a large control box that mounted under the splashwell at the back of the boat. It has one SOLENOID inside to control the up movement only. These two control boxes are not interchangeable.
 
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sorry airish but the forum is having problems with pictures. Any chance you can load the pictures online and post the links.

If you have a 2 wire trim motor there may be a plug on the end unless its been cut. if it has a plug get a couple of short lengths of wire and crimp spade terminals on end then put then in the plug. Next touch the battery positive with just one of the wires, Nothing should happen (if pump starts stop here and tell us). next touch the other lead to battery negative. Pump should run. Do not hold the wires on the battery for more than 3 seconds if pump does not run. also watch the engine as it should move and you don't want to get trapped. If you reverse the wiring the pump should run and the motor should go the other way. If this works then post back and we can help you find a trim/tilt relay box or help you build your own. If the pump doesn't run then look for a 3 wire trim motor.
P.s take a few pics under the cowling as you may have the box but the motor is mounted on a older boat.
 

racerone

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Some of the earlier versions of the 2 wire system also had a relay box that mounted in the boat.---Need a model # of this 110 HP motor.
 

Airish

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It does look like there are two holes where a relay box may have been mounted at some point. The guy I bought it from said the motor is an 89 unfortunately, the model # plate is missing off of the motor... I know that is a problem since there were 7 model#'s from that year. The boat is a 1989 18ft cc sea pro. The oil injection was disconnected in the motor so maybe they changed the trim tilt relay set up as well. Thank you for all the info
 
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Airish

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Jul 9, 2014
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sorry airish but the forum is having problems with pictures. Any chance you can load the pictures online and post the links. If you have a 2 wire trim motor there may be a plug on the end unless its been cut. if it has a plug get a couple of short lengths of wire and crimp spade terminals on end then put then in the plug. Next touch the battery positive with just one of the wires, Nothing should happen (if pump starts stop here and tell us). next touch the other lead to battery negative. Pump should run. Do not hold the wires on the battery for more than 3 seconds if pump does not run. also watch the engine as it should move and you don't want to get trapped. If you reverse the wiring the pump should run and the motor should go the other way. If this works then post back and we can help you find a trim/tilt relay box or help you build your own. If the pump doesn't run then look for a 3 wire trim motor. P.s take a few pics under the cowling as you may have the box but the motor is mounted on a older boat.
Thank you I will try this tomorrow
 

racerone

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Motor does look like late 1980's and yes the mounting bosses are clearly shown for the relay box.
 

emdsapmgr

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Very possible it is an 89. OMC changed the paint colors by then. Instead of painting the powerheads the color of the cowlings, they painted them all black. It does have the bosses for mounting the trim box-but it's not there.... It's at least an 88, since it has the single power pack. (the 87's were the older twin power pack models.)
 

Airish

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I have found a relay box off of another 1989 evinrude 110. Now I have no idea where to begin with wiring it... also do I need to find a switch to use now or will the toggle switch on the dash work with the relay box? Thanks
 
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