- Step 1. Place a drain pan under the lower unit. ...
- Step 2. Bend back the tabs on the tab washer to release the prop nut, then remove the 36mm prop nut and the tab washer, the propeller and the thrust hub behind it.
- Step 3. Remove the trim tab anode.
- Step 4. ...
- Step 5. ...
- Step 6. ...
- Step 7. ...
- Step 8. ...
Full Answer
How to remove sterndrive from shift selector?
How to disconnect trim cylinders?
How to remove lower unit on mercruiser?
How to remove the 5/8 nuts from a drive shaft?
Can you drop the lower unit on a boat?
Who is Norm Rogers?
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How do I remove my Mercruiser outdrive?
1:432:47How To Remove an Outdrive | The Easy Way - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo all this takes is a little flathead screwdriver to remove the c-clips. And once you have thoseMoreSo all this takes is a little flathead screwdriver to remove the c-clips. And once you have those off on both sides you're ready to remove the rod.
How do you remove the lower unit on a boat motor?
0:593:48Lower Unit Removal Yamaha Outboard - YouTubeYouTubeStart of suggested clipEnd of suggested clipI've already done that here it's really easy it's just the castle nut and the pin. So you take offMoreI've already done that here it's really easy it's just the castle nut and the pin. So you take off your prop. And then store your you know washers.
How do you remove an outdrive?
4:379:04How To Remove an Outdrive - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou can just get it off there with your standard ratchet you don't need a breaker bar or nothingMoreYou can just get it off there with your standard ratchet you don't need a breaker bar or nothing like that.
Are all Alpha One lower units the same?
All Alpha I's Lower Unit (not the Pre Alpha with the lift ring/or the pre-load nipple on top of the shaft) are interchangeable. The difference in the gear ratio will be in the Upper Unit.
How much oil does a Mercury lower unit take?
STEPLower Unit Oil Needed by ModelModelApproximate Fluid Ounces Required9.8 (2-stroke & 4-stroke)10.8 fl oz9.9 (2-stroke)12.5 fl oz9.9A (4-stroke)6.8 fl oz35 more rows
How do you fill a boat motor with lower unit oil?
3:064:03Changing Your Lower Unit Oil - YouTubeYouTubeStart of suggested clipEnd of suggested clipOnce the oil has completely drained screw the oil pump adapter fitting into the lower drain holeMoreOnce the oil has completely drained screw the oil pump adapter fitting into the lower drain hole connect. The quart pump to the quart of gear oil and begin pumping to fill the lower unit.
How much does a boat outdrive weigh?
Mid-Size Outboard Motors Depending on the make and model, they generally range from about 70.5 kg/155 lbs to 163 kg/359 lbs.
What is the difference between alpha 1 and Gen 2?
The Alpha Gen II upper and lower housings are fastened together with two through bolts on either side of the drive along with the front and rear bolts, while the Gen 1 drives use one stud visible on either side. Alpha Ones have two studs under the ventilation plate just above the prop.
How do you grease a gimbal bearing Mercruiser?
0:332:20Pre-Greasing greasable type gimbal bearing - Mercruiser, volvo penta ...YouTubeStart of suggested clipEnd of suggested clipSo. And what i've done is i i just took a little plastic cap from a rtv. Or like silicon gun. AndMoreSo. And what i've done is i i just took a little plastic cap from a rtv. Or like silicon gun. And cut it so that it screws onto the 1 8.
Which is better Alpha or Bravo?
Bravo One drives were built to handle more power than an Alpha One. When used for lower horsepower applications, they are practically bulletproof. Second, the Bravo One shifts better because it uses a cone-style clutch in its upper housing.
How do I know what model Mercruiser I have?
The model of Mercruiser engine can be determined by looking at the last letters of the “engine block code” that is stamped in all complete longblocks by General Motors at the time of assembly. If the serial number, and/or model decals are missing, the engine code will help to determine the engine model.
How do I identify my Mercruiser outdrive?
0:513:45Mercruiser Outdrive Identification -- Alpha Gen 1, Gen 2, and BravoYouTubeStart of suggested clipEnd of suggested clipSo it just looks different if you get used to seeing them you'll notice the difference that's theMoreSo it just looks different if you get used to seeing them you'll notice the difference that's the way that i kind of can look at them and tell pretty much right away what i'm.
How do you change the lower unit lube on an outboard motor?
0:412:57How To Change your Boat's Lower Unit Oil - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd some extra rags first locate your drain holes you have a lower end and upper go ahead alwaysMoreAnd some extra rags first locate your drain holes you have a lower end and upper go ahead always remove the lower drain screw. First. Keep pressure on it so the screw doesn't fall out once it's loose.
Can you run an outboard motor without the lower unit?
Yes. It's just an electric motor with its drive shaft detached.
How do you remove a lower unit screw?
1:504:55How to Remove Lower Unit Drain Plugs - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd just go really slow. And apply pressure and when you get the hole deep enough go ahead and tryMoreAnd just go really slow. And apply pressure and when you get the hole deep enough go ahead and try and get the extractor in there. So the screw came out pretty easily with that extractor.
How do you remove the lower end on a Johnson outboard motor?
3:025:51Removing The Lower Unit On A 1995 Evinrude / Johnson 115 - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere's basically six bolts that hold this lower unit on there's two on both sides. There's one moreMoreThere's basically six bolts that hold this lower unit on there's two on both sides. There's one more underneath. Right directly above the prop.
Removing lower unit from Upper unit Mercruiser - iboats.com
Hello everyone. I have a 1979 Searay with a 898 mercruiser and it seems my water impeller is shot. (I didn't winterize-HOW STUPID). I removed the outdrive from the boat. Then removed the 5 nuts holding the lower unit to the rest of the housing. Removed the proppeller, but couldn't find anything...
HOW TO take apart a lower unit on an outboard motor, how it works
Dis-assembly and reassembly of a lower unit on a Mercury outboard. This video shows how to take apart the gearcase of an outboard motor and shows how it wor...
What causes water to get in lower unit? - Boating Forum
Re: What causes water to get in lower unit? Since the motor is only 3 years old and assumming you have run it moderately or less and you have changed the oil previously it may well be as the last post reply - vent and/or fill plug.
How to Remove a Drive Shaft From a Lower Unit - Gone Outdoors
Your outboard motor has three distinct parts: a power head, which is the gasoline engine that powers the outboard motor; the exhaust housing that protrudes downward from the power head, wrapping around the exhaust system and the driveshaft; and the lower unit. You have to slide the lower unit from the motor to remove ...
How to attach a lower unit to a rafter?
If you don't want to have to manhandle it, suspend a rope or ratchet strap from a sturdy rafter or other overhead support directly above the unit and attach it to the end of the rope at the attachment point built into the top of the housing.
How to put outdrive in fully down position?
Use the boat's trim and tilt system to put the outdrive in the fully down, vertical position.
How to remove a trim cylinder?
Wiggle the lower unit up and down with one hand while attempting to pull the shaft that connects the trim/tilt cylinder to the outdrive out of the cylinder ends and outdrive housing. If it's too tight to remove by hand, put a punch on the end of the shaft and tap firmly enough to push it free.
Where is the speedometer on a boat?
Look on the forward part of the outdrive, just under and between the gimbals that allow the outdrive to tilt for a thin, rubber hose from the boat, attached to a white, nylon fitting on the outdrive. This is the speedometer hook-up.
How to remove the E clip on a car?
Position the screwdriver under the E-clip, now exposed on the end of the shaft that connects the trim/tilt cylinder to the outdrive. Rotate the screwdriver to begin prying the E-clip loose.
How to remove self locking nuts on a boat?
Use a 5/8-inch socket and ratchet wrench to remove the six self-locking nuts and the flat washers behind them from the studs that connect the lower unit to the back of the boat.
Can you remove the outdrive from a Mercruiser Alpha One?
Many maintenance projects on Mercruiser Alpha One, Generation II stern drives begin with removing the outdrive from the back of the boat. Because it's a simple job and can be done quickly, some people remove their units when they put their boats in storage to prevent thieves from stripping the outdrives when the storage area is a ...
Tools Needed - Mercruiser Bravo 2 Sterndrive Breakdown
Step 1. Place a drain pan under the lower unit. Next, remove the oil drain/fill plug from the bottom of the lower unit and the vent plug from the upper right-side of the driveshaft housing, and let the gearcase lube drain out.
MerCruiser Bravo 2 Sterndrive Lower Unit Disassembly
Step 6. Bend back the tabs on the tab washer to release the bearing carrier assembly’s retainer ring. Use a Mercury retainer ring tool to remove the retainer ring and tab washer.
How to set a boat shifter?
Drain your gear lube out. Drop the lower unit. Set the boats shifter into forward gear by pushing the shifter handle all the way forward. Set the lower unit in forward gear and lock it in place. To do this rotate the prop counter clockwise while you turn the front shift spline, located at the front of the lower unit, clockwise at the same time. When the prop locks in place CCW, you are in forward gear. Now to keep in in foward gear and to keep it from popping out on you. What you need to do get a bungee cord and grab a prop blade with 1 hook, and wrap the bungee cord around the prop CCW, and hook the other end to the anti-ventillation plate just above the prop. This bungee cord will provide tension on the propeller in the CCW direction, and prevent it from jumping into neutral. Put the lower unit back up. If you have to bump the drive shaft to get it to align in the upper, you need to grab the prop and give it a small tug in the CCW direction. If you try and go clockwise it will jump out of forward gear on you and you will have to start over. Once in place. Remove the bungee cord, and try to turn the propeller CCW. If it's still locked in place then you are still in forward gear, and it didn't jump out on you. Next, Go back into the boat. Bring the shifter into neutral, if it wont shift have a helper turn the prop CW as you shift it. With the boats shifter in neutral the prop should spin freely in both directions. If it's not doing that, then you missed or it popped out of forward on you again, and you have to try it again. If it is all good, fill the drive up with gear lube and off you go.
What is the serial number of a 1994 Mercruiser?
1994 Mercruiser Engine serial number 0F594132, Transom 0F579545 and Alpha One gen II Drive 0F502551 in a Chaparral boat. In the water … read more
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Is the CW a neutral or forward?
In neutral it spins freely in both directions. In forward (engine not running ) it's locked CCW and CW it moves about an inch, binds with some resistance, gives then binds then gives. Feels like the lever isn't in the slot.
How to remove sterndrive from shift selector?
Put the shift selector in forward gear and remove the six nuts that hold the sterndrive to the bell housing. Remove the sterndrive by pulling it straight back.
How to disconnect trim cylinders?
Disconnect the trim cylinders by removing the 9/16 inch nuts on the cylinder anchor pins. These are the pins that attach the cylinder to the lower unit. Use caution when removing the trim cylinders, as it will cause the sterndrive to drop freely. Take care to prop it up before taking this action.
How to remove lower unit on mercruiser?
How to Remove a Lower Unit Mercruiser. The proper way to remove the lower unit on a MerCruiser stern drive is completed in two steps. First, you remove the sterndrive and then you separate the lower unit from the upper gear box . It is possible to drop the lower unit while the stern drive is still attached to the boat, ...
How to remove the 5/8 nuts from a drive shaft?
Remove the 5/8 inch nuts from the anti-cavitation plate, the leading edge of the drive shaft housing, and the sides of the housing. Lift the upper gear housing away from the lower unit. The task is complete
Can you drop the lower unit on a boat?
It is possible to drop the lower unit while the stern drive is still attached to the boat, but replacing it is very difficult. In addition, removing the stern drive allows for inspection of the u-joints and other important components.
Who is Norm Rogers?
Norm Rogers is an experienced writer, publisher and blogger. His works range from formal business documents to books and articles on travel and leisure. He now make the Twin Cities his home.
