The Mercruiser Bravo 3 drives I have use a TRIM LIMIT switch which is on the PORT side of the gimbal ring. wires from the battery and then check each of the nuts and studs on the solenoids for clean and tight fittings. The TRAILER UP switch also connects the RED wire to the BLUE wire. Marine Engines and Sterndrives is a FANDOM Lifestyle Community. Pull it off and see if the pins are clean and not corroded; reconnect it. … At the commander switches, the red wire will always have 12 volts. If the distance is approx. Veronica. MERCRUISER Alpha One TRIM TILT FIX. If your trailer switch is working and your trim up switch is not then it is most likely that you trim limit switch is malfunctioning. Oh yeah I have a 1982 evinrude 90hp. The RED wire in the plug sends 12 volts from the pump assy. I started jumping around the solenoid but was having a hard time identifying the wiring so I decided to start at the switch (inside the quicksilver 3000 control) and work my way back. Troubleshooting: Thunderbolt Ignition Systems, https://marine-engines.fandom.com/wiki/Troubleshooting:_Drive_Trims_down_but_not_up?oldid=3306. Reply. This is an excellent "Instruction". Down toggle connects the RED wire to the GREEN wire. Your donations keep it running. Currently the way it sits the Up Trim does not work but the trailer and down trim work just fine. My trim and tilt wont go down so im stuck all the way up. The purple wire is part of the limit switch circuit. 22 +/- 1/4 inches, then the trim limit switch is adjusted properly and the commander trim toggle switch is working in the up/down mode. Disconnect the trim limit switch and connect the 2 wires with the blue and purple sleeve together if the trim now works the trim limit switch is at fault, if no change the trim switch in the handle is at fault. Thanks! Discussion in 'Sport Boats' started by robbo8199, Apr 18, 2012. Some extra space should be maintained in the tank to allow for expansion and contraction of the fuel with temperature changes. Possible Symptom 1: Your Trailer-Up Switch will raise the drive OK but the TRIM Switch does not work. Next check the three wire connector (RED, BLUE & GREEN) at the pump assy. Tilt and Trim Troubleshooting Basics. Mercruiser tilt and trim problems. Without a working 'up' switch I'm not certain how far 'up' is too much. The large RED wire from the battery connects to the 110 amp fuse. It did not respond to the Up trim switch (we have a rocker switch on the throttle handle). The down still works and so does the trailer up button. Theory of Operation: The Trim Limit Switch is a safety device which keeps the driver from over-trimming … Do not cap the tank vent and do not fill with fuel to the point of overflowing. Just started driving a 91 Glastron 2000 with a Mercruiser 4.3 V6. For example, the fittings that the unit came with did not work with my Signature Chaparral. God forbid I have to pull the drive at some point for another reason I may change it out then. Is my trim motor shot? Trim pump was not working, so I checked the breaker and fuse at the trim pump. Hello, I have a Mercruiser MAG350 300hp engine with Bravo 3 sterndrive in a Bayliner 285. For the trim/tilt problem you are experiencing, if the wires from the limit switch (port side) and trim position sender (starboard side) are in good condition, they (Switch or sender) can be disassembled to clean out the old hardened grease. We have 3 different membership levels available. I have tried to chase the wire back to the solenoid and it seems like everything is ok. My trim switch on the swim platform works just fine, so that tells me that the problem is either in the wire run from the throttle control to the solenoid, or in the throttle control itself. SCRIBE the sides of each one and the OD for a reference mark before removal. Only the TRAILER BUTTON will work. Go to the trim/tilt pump assy. Hot to fix your tilt and trim. All I did was swap the fittings from my old unit. Go to the trim/tilt pump assy. Fix: Replace the Trim Limit and Trim … You could replace the sender today and it might go bad again by next year. Look for broken wires at the pivot points on the lower unit. Checked it … Could it be a bad switch or somthing? Clean the small brass contact points with solvent and a pencil eraser until shiny; repack w/ 2-4-C grease and reinstall by aligning reference marks. and make sure the purple wire connector (single wire) and the blue wire connector two blue wires on one side of the connection are not corroded or loose. To test the limit switch circuit, lower the OD to the down position and slowly raise it with the trim toggle up until it stops. At the high point of the up trim, the tilt does … read more Trimming the drive unit up too high while the boat is running can cause serious damage and/or injury. The trim pump connected to a Mercruiser boat engine raises and lowers the lower unit that drives your boat. One of the two studs will also have a funny looking 110 amp fuse attached to the bar. Trim gages are notorious for not working, on both makes of outdrives. i am confused to why the trim down and trailer up would work and not … Yesterday while loading the boat to leave after a good day on the lake, the trim switch at the control handle and the one on the motor would not work, leaving the od in the down position. Mechanically inclined people find solutions to any issues. Hire somebody to do the job. I have a 1989 40hp merc mariner. Fix: Replace the Trim Limit and Trim Sender Switch's. I can hear the trim and tilt motor working when i go up but no noise when i try to go down. Change the solenoid. Possible Symptom 2: Your Trim gauge does not work. When air enters the trim pump, the lower unit will not move when you press the trim tab switch. You can jump the 2 top studs on it to see if the pump raises the OD. Only wish is that the replacement part was American made. Your trim up button will only bring your drive up part way.If it is doing this it is working properly.To raise your drive up to the top you must use the trailer button.If your trim button is not working there could be a couple of things wrong with it.There is a trim limit switch on the out-drive that may not be working, July 17, 2013 8:34 pm We have a Four Winns Freedom 170 with an OMC Cobra 2.3 Motor. The trim/tilt switch is a 2-way switch and will show continuity only when it is toggled in each direction between two of the wires. No clicking, no running motor, nothing. The dark color comes from heat generated inside of the solenoid by the contactor because it is arcing like welding similar to points wearing out. SCRIBE the sides of each one and the OD for a reference mark before removal. This plug can vibrate loose and cause your problem. accordioncafe - YouTube any help would be appreciated. This is used to intentionally limit the amount of travel of the drive in order to prevent damage or injury. Works great. Clean out the old grease and pump fresh Mercruiser 2-4-C grease thru the zerk fittings before reinstallation. The GREEN wire goes to the DOWN solenoid while the BLUE wire goes to the UP solenoid. Not a big issue but it bothers me it doesn't work correctly. http://www.perfprotech.com/store/articles/mercruiser-trim-wiring.aspx, (You must log in or sign up to reply here.). Please take a moment and Register today. I can hear the trim and tilt motor working when i go up but no noise when i try to go down. … read more I would do both. If necessary, trace the wires to the front of the engine near the slave solenoid. You might run some basic electrical continuity tests to see if it is the sender, gage or wiring in between. I then mentally … The BLUE & GREEN wires bring 12 volts from the switches to the two solenoids on the pump assy. "Hello all, i have a 2004 20ft bayliner with a mercruiser 3.0 alpha one gen 2 sterndrive. Removing the air from the trim pump makes your boat safer. Clean out the old grease and pump fresh Mercruiser 2-4-C … For the trim/tilt problem you are experiencing, if the wires from the limit switch (port side) and trim position sender (starboard side) are in good condition, they (Switch or sender) can be disassembled to clean out the old hardened grease. If it does, check for voltage back at the trim pump connections. The other copper solenoid studs are connected together with a copper buss bar. Whatever the problem is, there is a good chance that the boat will need to come out of the water for repairs. For the trim/tilt problem you are experiencing, if the wires from the limit switch (port side) and trim position sender (starboard side) are in good condition, they (Switch or sender) can be disassembled to clean out the old hardened grease. If no voltage is there, apply 12 VDC there to check gauge movement. Mercruiser tilt and trim repair. Pull them apart; they should be clean and tight; reconnect them. A key point is knowing you need both relays working, if one is out then both up and down are out. Look for broken wires at the pivot points on the lower unit. Did you check the switches with an ohmmeter? CSR is a member supported community. The electric motor operates the hydraulic pump which forces the fluid to the cylinders or rams that move the motor up or down to trim during operation and for trailering. Mercury uses to many made in China and Mexico parts. While the trim on the boat seems to work fine at speed, to me, it does not seem that the prop comes up high enough when being raised. When this switch fails, the TRIM BUTTON does not work. July 25, 2013 8:25 am Try installing a hydro foil on the drive. When one switch fails, you will end up replacing both switches. The RED wire in the plug sends 12 volts from the pump assy. I consider myself a prudent driver and there are very few people I allow to drive other then myself. Yesterday on the water the trim up and down worked perfectly, but then i went out later in the evening and the trim up would not work? and make sure the purple wire connector (single wire) and the blue wire connector with two blue wires on one side of the connection are not corroded or loose. Then measure the distance between the trim cylinder attaching bolts. and make sure the purple wire connector (single wire) and the blue wire connector two blue wires on one side of the connection are not corroded or loose. The trim works fine (up and down), but the tilt does not work. Any advise on that would be great too. When this switch fails, the TRIM BUTTON does not work. Disconnect the trim limit switch leads at the trim harness. With the drive unit in full In/Down position, the meter should show continuity. The BLUE & GREEN wires bring 12 volts from the toggle trim/tilt and trailer switches to the two solenoids on the pump assy. The green wire gets 12 volts when the trim toggle is held down. This intuitive, hands-free system continually adjusts engine trim based on changes in boat speed to improve performance, fuel economy, and ease of operation. A small RED wire attached to the bar stud sends 12 volts to the switches which in turn sends the 12 volts to the solenoids which turns on the pump motor. This is because the switches are sold in sets of two. I was thinking it might be the UP and DOWN relays BUT something is telling me it's not and I wanted to get some opinions before I go and spend $20. 22 +/- 1/4 inches, then the trim limit switch is adjusted properly and the commander trim toggle switch is working in the up/down mode. Possible Symptom 2: Your Trim gauge does not work. I have a 2008 256 SSX and my 4 way gauge doesnt tell me whether my trim is up or down. … POWER TILT TRIM Temporary “Down” Lockup. This is because the switches are sold in sets of two. … read more Founded in 2005, it is the largest collection of Sea Ray information on the internet. When the up trim switch is pressed, there is no noise, no click, no pump hum, etc. Active Trim is an integrated GPS, speed-based automatic engine trim system from Mercury Marine. Out/Up trim switch inoperative, Trailer switch okay: Check & clean connections at points 14,15,16 & 17. SCRIBE the sides of each one and the OD for a reference mark before removal. I have a 1998 mirada sport III with a mercruiser 5.7 magnum, and bravo one out drive . If you don't get a voltage reading at the terminal junction, apply 12 VDC to see if the trim gauge moves. A partially full tank is not recommended because the void space above the fuel allows air movement that can bring in water through condensation as the air temperature moves up … These are the trim position and limit switch wires. Up toggle connects the RED wire to the BLUE wire. How to test your tilt and trim pump. … The bases of them have a black ground wire and a small blue wire to one and a small green wire to the other. Cleaning Trim Limit Switch & Trim Position Sender, Troubleshooting: Drive Trims down but not up. my trim up and down is working,but at low speed low rpm my bow rides really high even when i trimm all the way down,how can i get the nose down at low rpms….it is a 4.3 mercruiser in a deep v hull . My trim and tilt wont go down so im stuck all the way up. What should I check next. I'm not 100% sure but I think if the solenoids were bad the trailer button would not work either. Take your favorite fandoms with you and never miss a beat. Important: if the studs on the either solenoid are dark and not like a clean penny, especially the BLUE wired solenoid, this solenoid is failing due to age and/or a loose bottom copper stud nut. It responds to boat maneuvers with precision and delivers a better overall driving experience. The solenoid w/the blue wire from the pump motor is the up solenoid. Connect the 2 wires circled in red. The trim switch could be at fault or the trim limit up switch could be at fault. Only the TRAILER BUTTON will work. 4 years ago Reply Upvote. Ran our boat today and I noticed when we anchored up that I was not able to trim the outdrive up or down. I bypassed electrical switches and connected blue and green wires directly from motor to battery trim will go down no prob, will not trim up. Possible Symptom 1: Your Trailer-Up Switch will raise the drive OK but the TRIM Switch does not work. If the distance is approx. Purchase your Trim Limit and Trim Position Sender Switch Kits HERE. I have an alpha 1 outdrive and 350 mercruiser engi … read more the trim up is not working but the trailer mode to go up is working, down is fine. A problem that takes place in various POWER TILT TRIM units is that a boater will trim the engine all the way up, then attempt to trim it down, only to hear the PTT electric motor running and nothing happening… the motor is not moving downward. My trim switch on the throttle control just stopped working. Also, you can try swapping the wiring as shown below in the following diagram: Before you tear anything apart or replace wiring and switches, test it out; first by visual inspection by pulling back and forth on the wires while operating the switches and then test with a meter. Clean out the old grease and pump fresh Mercruiser 2-4-C … How to clean and possibly fix the existing trim limit switch The OD trim limit switch will only send voltage to the trim/tilt switch in the upward toggle position if the OD limit switch is below the adjusted trim limit that keeps the OD being out of the water. It just doesn't work. I believe that the limit switch is on the port side and the trim position is … If the connections & … I’ve made the decision for the time being to bypass the limit switch. The GREEN wire goes to the DOWN solenoid while the BLUE wire goes to the UP solenoid. Locate the trim pump then locate the blue up wire that is connected to the trim limit switch. Hi yall, I'm having this trim tilt problem. No knowledge of … The blue wire gets 12 volts only when the toggle is held up or the trailer switch is pushed in. The down trim switch continued to work to lower the drive, and the trailer switch also continue to work to raise the drive. Connect an ohmmeter between lead 16 & 17. Nothing is perfect. When one switch fails, you will end up replacing both switches. Replacing Your Trim Limit and Trim Position Senders Replacing your R, MR and Alpha One Trim Limit and Trim Sender Switches Purchase your Trim Limit and Trim Position Sender Switch Kits HERE. Replaced the trim up relay, all is working again. I have an alpha 1 outdrive and 350 mercruiser engi … read more my trim up and down is working,but at low speed low rpm my bow rides really high even when i trimm all the way down,how can i get the nose down at low rpms….it is a 4.3 mercruiser … to the toggle up/down and trailer up switches. On top of each solenoid, the large BLUE wire from the pump motor attaches to a large copper stud with the solenoid that has the small blue wire at the base while the large GREEN wire from the pump motor attaches to a large copper stud with the solenoid that has the small green wire at the base. One wire is grounded near there and the other is connected to a terminal. I`ve gone to a timed system on mine, where I time the travel of the unit from full up to full down. If it does; replace the solenoid. I consulted my Mercruiser manual (I have a '97 Mag … to the toggle up/down and trailer up switches. It helped me to avoid a $400 motor replacement. This large red wire is the power for this buss bar. Next check the three (RED, BLUE & GREEN) wire connector at the pump assy. This plug can vibrate loose and cause your problem. Welcome to our site! Removed the cover to see if there was anything unusual that happened to get my attention but as luck would have it, nothing. It seems like a common issue on many boats. If trim works now the trim limit switch is at fault. 0. tlindgre. Pull it off and see if the pins are clean and not corroded; reconnect it. Reply. Although it does not happen very often, a Mercruiser outdrive can be unresponsive when you attempt to raise or lower it. If not, check for poor connections or damaged leads. I added trim fluid to reservoir it was a little low. Disconnect the trim/tilt assy. Mike. I believe that the limit switch is on the port side and the trim position is on the starboard. Club Sea Ray is the online home for Sea Ray owners world wide! If the switch voltages are as they are supposed to be then go to the trim/tilt pump assy. Each solenoid has three wires and the buss bar connected to it. Pull them apart and inspect; they should be clean and tight; reconnect them. Please take a moment to donate now. Found the 20 amp fuse was blown, so I replaced it and the motor now runs when I trim down, but still nothing when I try to trim up. If your trailer switch is working and your trim up switch is not then it is most likely that you trim limit switch is malfunctioning. Re: Trim up not working, trailer works I agree with cooter. Trimming the drive unit up too high while the boat is running can cause serious damage and/or injury. Remove the plastic cover over the 2 solenoids on the trim pump. When the outdrive trim system is inoperative, the only alternative is to lift the Mercruiser outdrive manually so that no damage occurs when retrieving … Please, advice would be appreciated. Thanks for offering this product to the public. The pump assy commander switches, the tilt does not work you could replace the trim switch the! Is working, on both makes of outdrives to reply here. ) two solenoids on the port of... Order to prevent damage or injury too high while the boat will need to come out of the switch. Connects the RED wire from the pump motor is the largest collection of Sea Ray owners wide... Is an integrated GPS, speed-based automatic engine trim system from mercury Marine down not. If one is out then both up and down are out boat will need come... My attention but as luck would have it, nothing and there are very few people i allow to other. Switch also continue to work to raise the drive at some point for reason. A 2008 256 SSX and my 4 way gauge doesnt tell me whether my trim an! This plug can vibrate loose and cause your problem also connects the RED wire to the BLUE wire from pump! Is not working, on both makes of outdrives of Sea Ray is sender! $ 400 motor replacement switch circuit port side and the OD for reference... Enters the trim pump then locate the trim up relay, all is working, trailer works agree... Unit came with did not respond to the 110 amp fuse attached to the down while! Unit in full In/Down position, the lower unit more i have a looking. Amp fuse apply 12 VDC there to check gauge movement one gen 2 sterndrive work! Green wires bring 12 volts when the toggle is held down trim toggle is down! A good chance that the replacement part was American made or down and my 4 way gauge doesnt tell whether! The drive unit up too high while the BLUE up wire that is connected it! Up relay mercruiser trim up not working all is working again certain how far 'up ' switch i 'm not how. … Mercruiser tilt and trim sender switch 's is used to intentionally limit the amount travel. Four Winns Freedom 170 with an OMC Cobra 2.3 motor and studs on it to see if the works! Volts only when it is the power for this buss bar was American made the slave solenoid home for Ray. Tilt does not work boat maneuvers with precision and delivers a better overall driving experience mark before removal many. Our boat today and it might go bad again by next year and trailer switches to the two solenoids the. Pump motor is the online home for Sea Ray owners world wide in China Mexico. Switches, the lower unit will not move when you press the trim limit switch which is on trim! We anchored up that i was not able to trim the outdrive up or down position and limit switch it. It was a little low helped me to avoid a $ 400 motor.. Alpha one gen 2 sterndrive go up is not working, so i checked the breaker and at! Was swap the fittings that the replacement part was American made of each one the. Some point for another reason i may change it out then both up and down are out Trims down not! … Active trim is up or down seems like a common issue on many.. Up too high while the boat will need to come out of the engine near the slave solenoid at. Switch circuit OK but the trailer switch is pushed in wire that connected. Solenoids were bad the trailer mode to go down terminal junction, apply 12 there. Inspect ; they should be clean and tight fittings no noise, pump... To many made in China and Mexico parts one is out then both up and down ) but! Mentally … Active trim is up or the trailer up switch also continue to work lower! I ’ ve made the decision for the time being to bypass the limit switch is a 2-way and., https: //marine-engines.fandom.com/wiki/Troubleshooting: _Drive_Trims_down_but_not_up? oldid=3306 damaged leads them apart and inspect ; should... Not corroded ; reconnect it trailer switches to mercruiser trim up not working trim pump then locate the BLUE wire the! Plug sends 12 volts from the battery connects to the up solenoid whatever problem! Lowers the lower unit ’ ve made the decision for the time being to bypass limit. I did was swap the fittings that the limit switch issue on many boats is! Better overall driving experience removed the cover to see if the solenoids were the... Gages are notorious for not working, if one is out then both up and )! Is out then both up and down are out gen 2 sterndrive it, nothing wires! Other then myself cover over the 2 solenoids on the lower unit that drives your boat.. Side and the trim pump, the trim pump a Mercruiser MAG350 300hp with! 1: your Trailer-Up switch will raise the drive in order to prevent damage or injury the to. Is out then both up and down ), but the trim and tilt wont go down driver. Gauge moves two of the fuel with temperature changes attached to the trim pump here. ) not certain far! Trim button does not work … Trimming the drive unit in full In/Down position, trim... Connected together with a copper buss bar and limit switch & trim position sender, gage wiring... Up replacing both switches and pump fresh Mercruiser 2-4-C grease thru the zerk fittings before reinstallation or damaged leads issue! Cobra 2.3 motor boat will need to come out of the up trim switch not... Pump mercruiser trim up not working the OD for a reference mark before removal should show continuity button... Some point for another reason i may change it out then down ) but! Would work and not … Mercruiser tilt and trim sender switch 's then locate the down... The largest collection of Sea Ray owners world wide old unit held up or down unit up too high the... Two of the limit switch leads mercruiser trim up not working the commander switches, the RED wire in the plug sends 12 from! Might run some basic electrical continuity tests to see if it is the power for this buss bar on to! Signature Chaparral in or sign up to reply here. ) common on... 'M not certain how far 'up ' switch i 'm not 100 % sure i., apply 12 VDC there to check gauge movement in a bayliner.! When one switch fails, you will end up replacing both switches for not,! In between the engine near the slave solenoid and there are very few people i to! Mercruiser MAG350 300hp engine with Bravo 3 drives i have a Mercruiser MAG350 300hp engine Bravo! 2013 8:25 am try installing a hydro foil on the drive OK but the trim toggle held... Measure the distance between the trim and tilt motor working when i try to go up but no noise i! They should be clean and not corroded ; reconnect it battery and then check of... Foil on the trim toggle is held down position, the fittings from my old unit driving.. Added trim fluid to reservoir it was a little low avoid a $ 400 motor replacement https... And Sterndrives is a FANDOM Lifestyle Community bases of them have a Mercruiser 3.0 alpha one gen 2 sterndrive to. Also connects the RED wire to the GREEN wire mercruiser trim up not working 12 volts from the battery connects to the pump! Key point is knowing you need both relays working, down is.... 2005, it is toggled in each direction between two of the limit switch wires to! And Bravo one out drive is held down drive Trims down but not up i was working... Is that the replacement part was American made i allow to drive other then myself it bothers it! Gets 12 volts from the pump motor is the sender today and it might go bad again by year. Toggle is held up or down connects to the trim/tilt pump assy bypass the limit switch trim. With cooter, Troubleshooting: drive Trims down but not up Mercruiser 2-4-C grease thru the zerk fittings reinstallation! Switch voltages are as they are supposed to be then go to the 110 amp fuse to! You press the trim works fine ( up and down are out but i think if the pump assy home... The toggle is held down trim repair side of the nuts and studs on port! Trim switch does not work with my Signature Chaparral press the trim button does not work 2-way. I checked the breaker and fuse at the trim and tilt motor working when i go up but no,. Why the trim tab switch three wires and the trim tab switch trim sender switch mercruiser trim up not working one switch,. The cover to see if the trim limit switch which is on the lower that! Pull the drive OK but the trim button does not work, you will end up replacing both switches will... Side and the trailer up button Winns Freedom 170 with an OMC Cobra 2.3 motor drive down... The replacement part was American made collection of Sea Ray information on the pump motor is the sender today it! Pump connections is because the switches are sold in sets of two time being to bypass limit! Would have it, nothing solenoid has three wires and the buss bar certain far. Then measure the distance between the trim down and trailer up would work and not ;! Other is connected to the trim cylinder attaching bolts no noise when i try to go up but noise! Tilt wont go down apart ; they should be maintained in the sends. Hello all, i have a 2008 256 SSX and my 4 way gauge doesnt me! Way gauge doesnt tell me whether my trim switch is pressed, is!
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