Westerbeke 9.0 BCG Technical Manual page 170

2. Hunting/Regulatjon If the variation in engine speed between no-load and full-load is too great, adjust this
eye bolt to draw the spring closer to the lever hub. The increase/decrease speed bolt may need to be ad-
justed as well.
If the governor surges while under a load, adjust this eye bolt to move the spring away from the lever hub.
(Check the speed adjustment.)
3. Bumper Screw This screw is used to remove a no-load surge only. Never turn the bumper screw into
the governor far enough so that it increases the no-load speed.
Governor Maintenance
1. Periodically lubricate the attaching points at both ends of the governor arm. Use a graphite lubricant or
an equivalent.
NOTE: Free movement of this linkage arm is important for proper governor/throttle opera-
tion.
2. Governor oil capacity -
6.5 BCG and 9.0 BTG - 3 ounces (98 milliliters) of SAE #10/30 motor oil.
4.0 and early 6.5 BCG - 1.5 ounces (49 milliliters) of SAE # 10/30 motor oil.
NOTE: Do not overfill governor.
3. Change the governor's oil every 500 hours of operation.
4. If the drive belt should be maintained in good condition. Replace the belt if it becomes worn or shows
signs of cracking.
To change the oil, remove the governor from engine and remove the oil fill and fill level plug and drain all the
oil from the governor. Reinstall the governor on the engine and fill it with 3 ounces (89 milliliters) of SAE
10/30 engine oil for the 6.5 BCG and 9.0 BTG or 1.5 ounces (49 milliliters) of SAE # 10/30 moter oil for the
4.0 or early 6.5 BCG. Replace the plugs.
Westerbeke Generators 164