Course 2 quiz 2 MMi
What creates the water flow in a stern drive? - ANS-An impeller pump driven by the engine
theough a V-belt, shaft or gears.
Where is the raw water pump located on a alpha 1 or bravo? - ANS-It is mounted at the front of
the engine and may be driven by the engine or drive belt.
What is a raw water pump? - ANS-A rubber wheel made of rubber which pumps raw water to
cool an engine
For storage fill the raw water cooling system with - ANS-A mixture of propylene glycol and water
(book says tap, instructor says distilled)
What is a good reason to replace a thermostat? - ANS-When dealing with an overheated engine
Why are mercruiser cooling systems so unique? - ANS-They are a closed cooling system
What part of a stern drive is a transom assembly mounted to? - ANS-The bell housing part of a
stern drive is attached to the drive unit
Where does sterndrive exhaust exit the boat? - ANS-Through prop exhaust, through transom
exhaust, through a silent choice exhaust (aftermarket either through the prop through transom),
or through anti ventilation plate exhaust.
What is so important when mounting stern drives? - ANS-Always check alignment before
installing the drive unit.
What does a gimbal ring on a transom assembly do? - ANS-Pivots on the gimbal housing. Can
move from side to side turning the drive unit for directional control.
gimbal bearing proper installation - ANS-1. Install the new grease seal to position using a
suitable mandrel 2. Install and position a new tolerance ring 3. Ensure the notched edge of the
bearing carrier faces inward in bore when installing the gimbal bearing
What is the first step in installing a sterndrive unit? - ANS-Position the trim cylinders straight
back
When installing an alpha one sterndrive what gear position is the drive and shift control put in? -
ANS-Straight forward
What gears drive what gear to transfer power 90 degrees in the upper drive housing assembly?
- ANS-The drive gear (horizontal) to the driven gear (vertical)
What creates the water flow in a stern drive? - ANS-An impeller pump driven by the engine
theough a V-belt, shaft or gears.
Where is the raw water pump located on a alpha 1 or bravo? - ANS-It is mounted at the front of
the engine and may be driven by the engine or drive belt.
What is a raw water pump? - ANS-A rubber wheel made of rubber which pumps raw water to
cool an engine
For storage fill the raw water cooling system with - ANS-A mixture of propylene glycol and water
(book says tap, instructor says distilled)
What is a good reason to replace a thermostat? - ANS-When dealing with an overheated engine
Why are mercruiser cooling systems so unique? - ANS-They are a closed cooling system
What part of a stern drive is a transom assembly mounted to? - ANS-The bell housing part of a
stern drive is attached to the drive unit
Where does sterndrive exhaust exit the boat? - ANS-Through prop exhaust, through transom
exhaust, through a silent choice exhaust (aftermarket either through the prop through transom),
or through anti ventilation plate exhaust.
What is so important when mounting stern drives? - ANS-Always check alignment before
installing the drive unit.
What does a gimbal ring on a transom assembly do? - ANS-Pivots on the gimbal housing. Can
move from side to side turning the drive unit for directional control.
gimbal bearing proper installation - ANS-1. Install the new grease seal to position using a
suitable mandrel 2. Install and position a new tolerance ring 3. Ensure the notched edge of the
bearing carrier faces inward in bore when installing the gimbal bearing
What is the first step in installing a sterndrive unit? - ANS-Position the trim cylinders straight
back
When installing an alpha one sterndrive what gear position is the drive and shift control put in? -
ANS-Straight forward
What gears drive what gear to transfer power 90 degrees in the upper drive housing assembly?
- ANS-The drive gear (horizontal) to the driven gear (vertical)
