outboard lower unit locked up
In this case you will need to add several ounces of penetrating oil to the engine oil and perform the same procedures. Locked-up motors result from long periods of storage, worn components or insufficient lubrication. Cover the spark plug holes with rags. Need a little more help with troubleshooting the lower unit? If the motor refuses to turn, add more penetrating oil and periodically use the impact wrench to turn the crankshaft nut. Drop it even if you don’t need a new impeller (although this would be the ideal time to put one in). This item:Panther 75-8320 Lower Unit Lock Kit, Tamper-Resistant$152.35. We had to return to pick it up in the bed of my truck. Remove the spark plugs. They are the flat plates located on almost every outboard’s lower unit. Inject penetrating oil into the spark plug holes for the next three or four days, once in the morning and once in the evening. Apparently either corrosion or old dried up grease had welded the drive shaft splines into the engine. It should eventually free up. though the oil looked fine when i drained it, it was NOT pressure tested so i would recommend new seals and definitely a new water pump impeller. If it now moves, the lower unit is at fault. Use a gearcase pressure tester to build up pressure in the unit and spray the seals with some soapy water to reveal leaks that you can't see. Remove the rags and let the excess penetrating oil escape from the cylinder, while you spin the motor. Locked Out! lower unit for mercury 225 pro xs, used lower units for mercury outboards, lower … The next step would be to check the output shaft carrier seals, shown below. Next, check out our video on how to replace the input seals on your outboard to see how to dig down to the input seals. Outboard Lower Unit Oil Changes: What You Need, How to Do It, How Often, and What It Costs. To keep your outboard running its best and give … Is your boat engine’s lower unit … Watch our video on how to replace the water pump on an outboard (featured earlier in this article) to get this done. Have your assistant help you remount your engine on the transom then connect the cables, fuel line and wire jack you removed. They can answer questions for any Yamaha outboard model or horsepower. You try to engage your outboard in either forward or reverse, and you hear some grinding, but the unit does engage. A replacement lower unit can help you avoid the expense and uncertainty of a complete rebuild. Remove the Spark Plugs & Oil The Cylinders, Replace Plugs if Needed. The solution to … If your engine is overheating, the first place to look is the impeller inside the water pump. This should not come as a surprise, particularly since these accessories can be stolen easily, quickly, and silently. Check out the video above for information on how to do maintenance on the throttle cable of your outboard to correct the problem. Collapse. Outboard marine motors can suffer a number of maladies that cause hard-starting or no-start conditions, but they usually turn over via the pull start or electric starter. That, and liberal amounts of "FreeAll" penetrating oil, really turned the trick and allowed me to get this lower unit off! Attach two feet of clear plastic hose on the tip of a clean turkey baster and insert the free end of the hose down into the spark plug hole. An outboard motor lower-unit lock has a key, a locking pin assembly and a shaft. The oil that comes out as you drain the lower unit can tell you a lot about what's going on inside the gearcase. Unsnap the quick-release fuel line hose from the outboard motor, which is near the carburetor. Determine the orientation of the cylinders, whether they have a horizontal or vertical configuration on the motor. Ships from and sold by CE Showroom. Look for movement. One of the more serious problems involves a freeze-up or locked position when the motor refuses to turn at all. If playback doesn't begin shortly, try restarting your device. If horizontal, lay the truck dolly down on its frame, with the spark plug holes facing up. Place the upper clamp bolt in the clamp (it may help to use a spring fingered type pickup tool to hold it in the narrow slot between the units), tighten the screw. Tie bungee cords around the lower unit case. Set washers over the three lower unit studs that are now protruding through the mounting holes at the top of the sides of the lower unit. Fit a six-point socket over the crankshaft nut and attach an electric or pneumatic impact wrench to the socket. Lower unit problems on an outboard can start off small and snowball into a debilitating mechanical issue that stops your boat cold. 2. Don’t Drill! This outboard got water in the powerhead and owner did not get it cleaned out and it rusted and locked up rendering it junk so parting it out. It’s the bottom portion that houses the gear case and prop shaft that changes the direction that the propeller spins in. 1. If it doesn't the problem is in the powerhead. Item for sale is a used lower unit (98J) off of a Suzuki outboard motor. This drive shaft was completely stuck! I went through t a few attempts and finally turned the engine upside down. The first place to look is the output seals, which are found behind the propeller. What Should You Do If An Outboard Has Been Sitting For Awhile? We also offer two turnbuckle locks with different strengths and finishes. Collapse. The Boston Whaler 13 I purchased came with a 1988 Johnson 40hp outboard. They're commonly damaged when fishing line gets wrapped around the prop shaft, and the seal can be inspected by removing the prop. If the engine begins to turn, stop. 4. Thread a lock nut onto each, as far as you can by hand. edit: Back to the original specs, the original performance, the original thrills. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Seized-engine.com: How to Use Engine Release. © 2000-2021 Boats.net. Afterward, let the penetrating oil soak for a full week. Slipping is most likely either engine too high, or you have spun the prop hub so that the rubber is not not transferring power to the prop properly. Guaranteed. Set the impact wrench for medium pressure, if it has a variable adjustment, and set the direction of rotation for a clockwise spin. Step 2. Drain the oil from the lower unit by removing the drain screw and washer from the front of the gearcase. Usually there are two output seals placed one after the other as a redundancy, so this is the first place to look. Locate your drain/fill plug screw and adjust the trim/tilt of your outboard motor or sterndrive so that this plug is in the lowest position possible in order to drain the used oil thoroughly. The best advice is to gently pry between the lower unit housing and the powerhead. Watch the video below on replacing the water pump on the Yamaha F225 to see how to remove the lower unit and water pump. McGard 74039 Marine Propeller Lock Set (3/4"- 16 Thread Size) - Mercury/MerCruiser/OMC - Set of 1$62.99. This item will be sold as is for parts. Item for sale is a used lower unit with 25″ shaft off of a Yamaha 150hp 2 stroke outboard motor. Wait about six hours and repeat the oil injection into the cylinders, but use only 1/2 ounce per cylinder. Here in Florida, that’s all the rage. When that engagement isn't smooth, you'll hear grinding. Remove the Lower Unit From the Outboard. Items are sold as is shown and described above sold as is with no refunds or returns accepted. My guess would be that the gearcase has gone out maybe a broken part has lodged between something, pull the drain plug at the bottom of the gearcase and see what comes out, if it is water or thick looking and gray then a seal has leaked and water has entered the gearcase, lack of lubrication can lock up a bearing or create to much friction on gear and clutch surfaces and cause them to crack and break, … Changing the lower unit oil should be a regular part of your outboard maintenance schedule. Transport the motor inside a garage area. One of the more serious problems involves a freeze-up or locked position when the motor refuses to turn at all. This will protect the mating surfaces between the powerhead and lower unit. Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. If you take your outboard out in saltwater environments, you should drop the lower unit at least once a year. Stevenson holds a P.D.S Toyota certificate, ASE brake certification, Clean Air Act certification and a California smog license. Videos you watch may be added to the TV's watch history and influence TV recommendations. Once installed, lower unit lock bolt offers 24 hour protection. Seized engines can also result from spun rod or crankshaft bearings. lower units for mercury outboard, lower unit for mercury 250 pro xs,lower unit for mercury 225. lower unit for mercury 150, lower unit for mercury 9.8, lower unit for mercury 25, lower unit for mercury optimax. When you reinstall a lower unit, it's important to re-grease splines. 10 minutes with a ratchet, and the lower unit will come right of. Wait for the oil to drain out, then reinstall the drain screw and washer. Posts; The lower unit of the outboard motor is otherwise referred to as the foot, gear case, or gear box. Use an assistant to help with the lifting. Remove the trim tab and the 14mm bolt beneath the trim tab. To install the lock, a user drills a shaft hole the same diameter as the shaft through both sides of a housing unit below an access hole of the housing unit. Gearcase assemblies are shipped without oil. Basically, you want to make sure that your anti-cavitation plate is skiing on the surface of the water when your boat is on-plane at operating speed. Turn the impact wrench on for four or five seconds, letting the vibration hammer of the tool shock the shaft. This unit will be sold as is for parts. Chris Stevenson has been writing since 1988. Lower Unit and Sterndrive Break-In Instructions; Lower Unit and Sterndrive Break-In Instructions. this lower unit shifts fine and sounds fine. Remanufactured lower units. Step 1. Milky lower unit oil means you have water in the oil, which means you've lost a seal somewhere. Your lower unit may have had problems over the years, or have a larger issue and be completely out of commission. To look at it, you'll need to remove the lower unit and the water pump housing. Adjust RPM at idle to manufacturers specifications. Disconnect the Fuel Line From the Boat & Check the Condition of the Fuel. Fill unit with manufacturer's required gear oil to recommended level. Watch our Yamaha outboard lower unit disassembly video below to see how to get that done. Step 1 Unsnap the quick-release fuel line hose from the outboard motor, which is near the carburetor. Notice the crankshaft nut on the shaft. Remove the plastic "protector" from the center of the flywheel and put a large socket and wrench on the nut and try to move the flywheel in a clockwise direction. Need a little more help with troubleshooting the lower unit? Only 1 left in stock - order soon. If it still does not move then drop the lower unit and repeat. Use a socket and wrench to replace the spark plugs. Simply replace one of the mounting nuts with a McGard locking nut. Mike, your new outboard is harder to steal, but keep an eye on the lower unit. Watch the video above to learn. However, the lock must not interfere with the operation of the motor, and it must be convenient for the owner to remove the lower-unit to service or replace it. Ships from and sold by Amazon.com. This pushes water from the lower unit intakes up to the engine. Thin metal scrapers can be used just to get enough separation where you can then insert a screwdriver and pry against the scrapers. However, if you're trying to pull a lower unit, that ship has sailed. Item is sold as shown above as is with no returns. Outboard marine motors can suffer a number of maladies that cause hard-starting or no-start conditions, but they usually turn over via the pull start or electric starter. Attach the impact wrench to the crankshaft nut and turn it on. Identifying problems early cuts repair costs, and in some cases can keep you from having to replace the lower unit altogether. We offer all-new Lower Unit Locks which ensure your lower unit will be Tamper-Resistant. If a visual inspection of the input and output seals doesn't give you answers, your next step is a lower unit pressure test. If you want your boat to last, regular maintenance is essential, and one of those tasks you can't ignore is changing your outboard lower unit oil regularly. Once you have the unit off, clean up the splines on the drive … 2. Simply replace one of the Original Equipment bolts above the propeller with a McGard locking bolt. McGard and maybe others make locking bolts/nuts for outboard motor lower units. Lower units can't "slip" as there is no true clutch. McGard outboard motor locks are designed to lock the outboard onto the transom of the boat. If there's no leak there, you'll have to get more involved. The casing of this lower unit has pitting. 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