Step 5: If you are uncertain about the condition of the impeller, remove it and
inspect. Wheninstallingorre-installingone,youwillnditatightt.
This ensures proper operation. The use of soap or Vaseline will help with
installation. You will note that proper placement on the gear results in a
squeeze on the arms. This is the correct installation.
Step 6: Place a gasket between the housing and the cover after ensuring that the
surfaces are smooth and clean; then re-install the screws in place. Do not
over-tighten the brass screws. This can cause them to break.
Inspect the Propeller Shaft Log
for Excessive Water Entry
After approximately three-to-fi ve minutes of boat opera-
tion in the water, shut off the engine and open the engine com-
partment. Note whether the propeller shaft log appears as it does
in the photo at right. If so, the boat is equipped with a dripless
shaft log and if it is showing signs of drips, the boat must be taken
to a MasterCraft service department for correction.
The engine box serves as a machinery guard. The engine must be
OFF whenever the box is open. Clothing or body parts can get
caught in moving parts, causing serious injury or death. Keep
away from moving parts.
Inspect the Propeller Shaft Log
for Excessive Water Entry
tion in the water, shut off the engine and open the engine com-
partment. Note whether the propeller shaft log appears as it does
in the photo at right. If so, the boat is equipped with a dripless
shaft log and if it is showing signs of drips, the boat must be taken
to a MasterCraft service department for correction.
The engine box serves as a machinery guard. The engine must be
OFF whenever the box is open. Clothing or body parts can get
caught in moving parts, causing serious injury or death. Keep
Attention must be paid to any leakage occurring in the propeller shaft log area. Water intrusion into the transmis-
sion, which can happen if excessive leakage is occurring, can cause serious damage and void your warranty.
Inspect the Fuel System for Leaks
This inspection requires the operation of the engine
with the engine compartment open, thereby creating a po-
tentially dangerous situation. Whenever this inspection is
performed, utmost care must be exercised to avoid personal
injury or death.
Step 1: Ensure the engine is OFF and the engine safety
starting switch disconnected. Be certain that the
throttle/shift control lever is in neutral. The engine
must be cool.
Gasoline is highly flammable and its vapors may ignite, resulting in fire or explosion. Be sure to keep all sparks and
flames well away from the area while inspecting the boat’s fuel system.
2007 MasterCraft Owners Manual - Page 15-5
Inspect the Propeller Shaft Log