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Your Might Max has a 4G60 series engine, so I guess you want to get the 14mm nut off the oil pump belt pulley. On the lower side of the block there's a 17mm (or maybe 14mm, I forget) bolt. Remove this and you can poke a 10mm screwdriver into the hole. This locks the oil pump balance shaft. You will need to rotate the oil pump pulley to get the screwdriver all the way in. You should then be able to remove the 14mm head bolt(it's an M10 I think) on the pulley. It should not be excessively tight.
REMOVE LOCKING TAB, UNBOLT NYLON LOCK NUT...DISCARD! PROP SHOULD SLIDE OFF OUTPUT SHAFT...IF NOT PROP IS FROZEN. IF IT A THRU HUB PROP, AND HAS A RUBBER SHOCK ABSORBING DEVICE...YOU CAN'T REALLY HEAT IT..YOU DEFINITELY DO NOT WANT TO BANG ON THE PROP(SHAFT AND BEARING DAMAGE) SOMETIMES THE PROP HAS TO BE CUT OFF...REQUIRING A NEW PROP! TIP: IF THIS IS THE CASE:*** ALWAYS COAT PROP SHAFT WITH ANTI-SEIZE COMPOUND WHEN INSTALL A PROP!!!!!
Once You Have Removed The Nut And Lock Washer , Then You Will Have To Get A Puller To Pull It Off ,Or Lever It Off, There Is No Other Way It Has Probably Coroded And Stuck To The Shaft,Spray Release Oil On It ETC. Good Luck
When the gear box ix in forward, it should make a ratcheting noise when rotated forward and should not turn at all when turning in reverse (or be resistant as your back spinning the water pump -don't do that) Once in gear (forward ) you should be able to mate the shift to the motor. I have removed the prop and nut and used a remote start to spin every thing together, but requires a lot of safety precautions.
If you are working on an older mercury, that shift rod can work both ways with disastrous results if you over spin the shifter to the back side of the detent.
there is a plastic nut that screws onto the prop shaft and needs to be unscrewed. there is also a metal pin that goes through the shaft that needs to be in place and in the right position when you replace the prop. make sure you clear out any fishing line etc that may have collected behind it when you change props.sually recommend you put a little clear silicone grease on the parts as you assemble them as well.ake sure you disconnect the power leads from the battery while your doing this to avoid injury.
Odds are you have sheared the pin (slides through the prop shaft) holding the prop, or you have damaged the slot on the prop that the pin sits in.
Prop is secured to the shaft with a metal nut, or flat plastic wing nut. Remove the nut to remove the prop. You may have to pry, slightly, the prop from the motor housing. Removed, you will see a whole in the shaft where a pin should be located. If the pin broke, it probably hit the floor when the prop was loosened. If the pin is intact, examine the rear side of the prop and look for damage to the plastic slot where the pin would sit making contact.
If you've snapped the pin, you can make a replacement with a nail using a hacksaw. Replacement pins can also be ordered from Minn Kota. If the back side of the prop is damaged (recess for the pin to sit), the prop is toast. Replacement props are often carried by Walmart, and include a new pin.
If neither part is broken, perhaps the prop was just not seated on the pin correctly allowing the prop to freewheel.