I am guessing that your shift is out of alignment on this little Merc. To correct this, the gearcase will have to be removed again. Once it is off, check to see if the gearcase is in neutral. This can be determined by turning the driveshaft in a clockwise direction while watching for prop movement. There will be no prop engagement in neutral gear. If there is prop movement, using slight pressure, turn the shiftshaft to the left, or to the right, to engage the neutral detent. Check to make sure the shift handle is also in the neutral position. Grease the shaft splines, and carefully reinstall. Take note that the watertube slides into the pump housing, and that the gearcase does not jump back into gear. The driveshaft splines can be aligned by rocking the flywheel back and forth.
Provided that the shift coupler is in serviceable condition, the engine should now shift properly.
To rebuild a lower unit on a 40hp Mercury outboard, start by removing the lower unit from the engine by unscrewing the bolts and disconnecting the shift linkage. Drain the gear oil and disassemble the lower unit, noting the arrangement of parts. Replace worn components such as seals, bearings, and the water pump, then reassemble the unit, ensuring all parts are properly aligned. Finally, refill with the appropriate gear oil and reinstall the lower unit on the outboard.
If the horsepower of your Mercury outboard lower unit is 75 and below, SAE 80W90 Gear Lube is recommended.
How do I remove the lower unit from my 1984 50 hp. Mercury outboard motor?
The 1973 model, 7.5 hp Mercury outboard, requires 6.8 oz. of gear oil.
Never mind I figured it out
The lower cowl on a vintage 1973 Mercury 9.8HP outboard motor with 4 retaining bolts. They are passed through the cowl and directly into the body of the boat.
To replace the water pump on a 1989 Mercury Force 125 HP outboard, start by removing the lower unit. Disconnect the shift rod and any associated bolts, then gently pull the lower unit down. Once removed, take off the water pump housing by unscrewing the bolts, and replace the impeller and gaskets. Reassemble the water pump and lower unit, ensuring everything is securely fastened and properly aligned before reattaching it to the engine.
Take it to a marine repair shop or google it up, the answer is there
No
For a 90hp Mercury two-stroke outboard, you should use a high-quality lower unit gear lube specifically designed for outboard motors. Mercury recommends using their own brand of gear lube, such as Mercury High-Performance Gear Lube or Quicksilver Gear Lube, which offer excellent protection against wear and corrosion. Always check the owner's manual for specific recommendations regarding viscosity and any additional requirements.
The rubber tube coming from the lower unit of a 60 HP Mercury outboard is typically the water intake or telltale hose. It allows water to be drawn into the engine for cooling and also serves as a discharge point to indicate that the cooling system is functioning properly. If water is not flowing from this tube, it may signal a blockage or malfunction in the cooling system, which requires immediate attention to prevent engine overheating.
It is a speedometer pick up tube.no longer used due to clogging.