53166 Mercury LOCKWASHER, WATER JACKET COVER FASTENING SCREW

Remove the storage cover and the gasket from the front of the reservoir on the governor calibration bench.
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Governor Calibration Bench (1) Drive coupling
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(2) Inlet fitting for the fuel transfer pump (3) Outlet fitting for the fuel transfer pump (4) Fitting for the fuel ratio control (5) Inlet fitting for the fuel transfer pump from the fuel filter base
Remove the large O-ring seal from the front of the governor. Align the drive coupling on the calibration bench with the governor drive gear by rotating the governor until the two drive pins in drive coupling (1) engage with the governor drive gear.
When the drive pins engage with the governor drive gear, rotate the governor in order to align the mounting holes in the governor housing with the mounting holes in the governor calibration bench.
To fasten the governor to the calibration bench, use the same bolts and washers that are used to fasten the governor to the engine. If the governor mounting bolts are not available, use three 6V-5218 Bolts with three 9M-1974 Hard Washers .
Install fittings (2), (3), and (5) in the governor. Install fitting (4) if the governor is equipped with a fuel ratio control.Note: Step 6 is optional. If the governor calibration bench can successfully perform the entire procedure, then the fuel transfer pump can remain in position on the governor.
Remove the fuel transfer pump from the governor housing. Refer to the Disassembly and Assembly, "Governor (Type) - Disassemble" section in this manual for additional information.
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(6) Line from the fuel transfer pump (7) Line to the sump (8) Pressure line from the filter base
Connect line (7) from the sump to fitting (3) for the fuel transfer pump outlet.
Connect line (8) from the filter base to fitting (5) for the oil inlet on the governor.
Connect line (6) from the fuel transfer pump to fitting (2) for the inlet fitting of the fuel transfer pump.
If the governor is equipped with a fuel ratio control, connect a regulated air supply (hand pump or squeeze pump) to the fuel ratio control. Turn on the regulated air supply in order to pressurize the fuel ratio control.Note: A regulated air supply of 140 to 210 kPa (20 to 30 psi) must be used to avoid damage to the fuel ratio control.
Install the pressure gauge that is supplied with the governor calibration bench on the quick disconnect fitting on the filter housing for the lubricating oil.Note: Ensure that the fuel shutoff solenoid is latched in the RUN position. To latch the fuel shutoff solenoid in the RUN position, refer to the Systems Operation, "Fuel Shutoff Solenoid" topic in this manual. If the fuel shutoff solenoid is a nonlatching solenoid, remove the fuel shutoff solenoid with a 9U-5120 Spanner Wrench and plug the opening.
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(9) Oil collector cup (10) Bracket
Install oil collector cup (9). Remove bracket (10) from the storage location and install bracket (10) on the calibration bench, as shown.
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(9) Oil collector cup (11) Throttle lever (12) Lever (13) Typical example of a calibration pin
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(13) Typical example of a calibration pin (14) Clevis pin
Install lever (12) on throttle lever (11). Turn throttle lever (11) clockwise in order to move clevis pin (14) away from the governor housing. This movement will permit calibration pin (13) to be installed.
Remove the collar from calibration pin (13). Insert the calibration pin through the hole in oil collector cup (9) then into clevis pin (14) of the governor output shaft.
Slide the collar over the end of calibration pin (13) until the calibration pin contacts clevis pin (14) .
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(12) Lever (13) Typical example of a calibration pin (15) Spring (16) Base
Connect one end of s