68789 Mercury SCREW, RETAINER TO HOUSING (3/8")

Start By:
Remove the engine front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".Note: The components for the governor assembly are located in the engine front housing.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Removal of the Governor Weight Assembly
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Remove slider (2) from the end of the camshaft gear.
Remove bolts (1) that secure governor weight assembly (4) to the end of camshaft gear (3) and then remove governor weight assembly (4) .
Check governor weight assembly (4) for any wear or damage. Replace any components that are worn or damaged.Removal of the lever for the Engine Stop
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Remove spring (5) from lever (6) for the engine stop.
Loosen bolt (9) and nut (11) that secures control arm (7) to the lever (6) for the engine stop.Note: Do not remove nut (11) and washers (10) from bolt (9) .
Remove control arm (7) from lever (6) for the engine stop .
Remove lever (6) for the engine stop from the engine front housing (8). Note: The bushing is secured to the engine front housing with a special adhesive. The bushing must not be removed. If the bushing is removed, the threads in the engine front cover will be damaged.
The lever for the engine stop consists of the following components: clip (12) and O-ring (13) .
Check the components for wear or damage. Replace the components that are worn or damaged.Remove the linkage for the fuel injection pump
Note: When the linkage for the fuel injection pump is removed or the engine front cover is replaced, the setting for the maximum fuel may be affected.
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Remove spring (14) from fuel control lever (15) .
Remove C-clip (21) from governor control lever (19) .
Remove governor control lever (19) and remove lever (16) from the engine front housing.
Perform the following procedure in order to disassemble the fuel control lever (15) .
Remove spring (14) from the end of fuel control lever (15).
Remove the Angleich unit (torque control) (17) from lever (16) .
Remove pin (18) that connects fuel control lever (15) to lever (16) .
Check the components for wear or damage. Replace any components that are worn or damaged.Remove the Speed Control Lever for the Engine
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Remove nut (22) and remove washer (23) that secures lever (24) to the arm (30) for the engine speed control .
Remove lever (24) from the arm (29) for the engine speed control .
Remove nut (24) from arm (30) for the engine speed control. Remove washer (26) and remove spring (27) from arm (30) for the engine speed control .
Remove arm (30) for the engine speed control from the engine front housing (8) .
Remove C-clip (29) and O-ring (28) from arm (30) .