How to remove Evinrude etec 150, 175, 200hp outboard lower unit gearcase for reseal or replace water pump impeller
Replacing the lower unit on an Evinrude ETEC outboard motor can be a complex process and requires some mechanical expertise. Here are some general steps to follow:
Gather the necessary tools: You will need a socket wrench set, a torque wrench, a lower unit puller, a new lower unit, lower unit oil, a seal kit, and a replacement water pump kit.
Drain the lower unit oil: Before removing the lower unit, drain the oil by removing the drain plug located on the bottom of the lower unit. Allow the oil to drain completely.
Remove the propeller: Remove the propeller by unscrewing the propeller nut and pulling off the propeller.
Remove the lower unit: Use a lower unit puller to remove the lower unit. If your outboard has a trim tab, remove it before removing the lower unit.
Install the new lower unit: Install the new lower unit by aligning the splines and pushing it up into place. Tighten the bolts in a criss-cross pattern to the torque specifications recommended by the manufacturer.
Install the water pump kit: Install a new water pump kit on the lower unit, following the manufacturer's instructions. Be sure to use a seal kit to ensure a watertight seal.
Fill the lower unit with oil: Fill the lower unit with the correct type and amount of lower unit oil as specified by the manufacturer.
Test the motor: Run the motor in a test tank or on the water to ensure that everything is working properly.
It is important to note that these steps are general guidelines, and you should always consult your owner's manual or a certified mechanic for specific instructions and torque specifications for your particular Evinrude ETEC model.