Car Repair Tip How to Take Apart Mercury Outboard Lower Units – Car Talk Radio

The r-case, or lower portion of the outboard motor, receives power and rotation from the engine before transferring them to a shaft and propeller. Regular maintenance improves its endurance and performance.

For starting Begin by gathering a ratchet 14-16mm sockets, as well as the flat screwdriver. The first step is to remove the top cowling. Next, with the push of the plastic retainer clip, disconnect the shaft from the drive. To remove the retainer clip pull the plastic away from the shaft that drives the shift, and shift it to the left.

The lower and trim tab unit should be correctly aligned to the outboard lower units in order to allow for easy replacement. Find the bolt for the trim tab and then remove it using the trim tab. Next, find the hidden lower unit mounting bolt and then remove it.

To prevent the unit from falling, it is necessary to take off the four bolts connecting on the upper part of the lower unit. Then, take the unit from the bottom and the away from the unit. It is possible to tap it using a mallet in order to let it loosen up if it isn’t able to come off. go6s7jn1to.