Need help?Do you have a question about the Onan MCCK Series and is the answer not in the manual?
General| Cylinders | 2 |
|---|---|
| Fuel Type | Gasoline |
| Governor Type | Mechanical |
| Starting | Electric |
| Lubrication System | Pressure |
| Rotation | Counterclockwise |
| Bore | 3.25 in. (82.6 mm) |
General safety advice for engine operation and maintenance.
Precautions to avoid injury from moving engine components.
Safety guidelines for handling and servicing batteries.
Fire and explosion hazards related to the fuel system.
Hazards associated with exhaust gases, including carbon monoxide.
Safety precautions for the cooling system, especially regarding pressure.
Importance of cleanliness to prevent overheating and fire hazards.
Overview of the manual's content and purpose.
How to identify engine models and specifications.
Dimensions and clearances for the cylinder block components.
Dimensions and clearances for the crankshaft.
Dimensions and clearances for connecting rods and related parts.
Dimensions and clearances for the camshaft and its bearings.
Dimensions and clearances for pistons, rings, and cylinder bore.
Dimensions and clearances for piston pins.
Clearances for piston rings in their grooves and gaps.
Dimensions and clearances for intake valve stem and guide.
Dimensions for intake valve seat width and angle.
Dimensions and clearances for exhaust valve stem and guide.
Dimensions for exhaust valve seat bore and width.
Inside diameter of the valve guide.
Dimensions and clearances for tappets.
Specifications for valve springs, including free length and load.
Backlash specifications for timing and oil pump gears.
Guide to identify causes of engine problems based on symptoms.
General advice on engine installation for optimal performance.
Methods and considerations for mounting the engine.
Requirements for adequate ventilation for engine cooling and combustion.
Guidelines for installing and routing the exhaust system safely.
Importance of fresh air supply for carburetor efficiency.
Details on fuel pump and tank installation and safety.
Information on connecting the engine to the load via PTO shafts.
Recommendations for installing belt drives and alignment.
Guidelines for installing flexible couplings for engine-to-load connection.
Mounting of reduction gear drives.
Procedures for installing a Rockford clutch.
Importance of fuel system adjustments for engine performance.
Precautions and procedures for adjusting gasoline carburetors.
Step-by-step guide for carburetor load and idle adjustments.
Alternative procedure for carburetor adjustment when no load is available.
Procedures for cleaning and repairing carburetors, including warnings.
Explanation and adjustment of the thermal magnetic choke.
Procedures for disassembling and repairing the choke assembly.
Information on the diaphragm type fuel pump and its function.
Step-by-step guide for reconditioning the fuel pump.
Checking and adjusting governor linkage for proper operation.
How to adjust engine speed using governor spring tension.
Adjusting governor sensitivity for stable speed control.
Alternative procedure for Spec A-G carburetor adjustment.
Setting the throttle stop screw for proper idle clearance.
Procedures for checking and adjusting carburetor float level.
Adjusting mixture screws for Spec H carburetors.
Adjusting float level and float drop for carburetor.
Steps for removing and disassembling the carburetor.
Procedures for cleaning and repairing carburetor components.
Steps for reassembling and reinstalling the carburetor.
Procedures for servicing the Facet and Bendix electric fuel pumps.
Steps for removing the mechanical fuel pump.
Procedures for installing the mechanical fuel pump.
Instructions for repairing the mechanical fuel pump.
How to adjust the choke setting based on ambient temperature.
Adjusting the choke cover for optimal mixture settings.
Troubleshooting and repair for the electric choke system.
Adjusting governor speed, linkage, and sensitivity.
Adjusting governor linkage for proper engine starting and operation.
Adjusting engine speed via governor spring tension and charts.
Adjusting governor sensitivity for regulation and preventing hunting.
Adjusting the vacuum booster for speed regulation under load.
Testing the primary and secondary windings of the ignition coil.
Maintenance and replacement of breaker points.
Checking and adjusting ignition timing.
Checking ignition timing with a timing light.
Checking ignition timing using a continuity test lamp.
Checking, regapping, and replacing spark plugs.
Proper care and maintenance of the battery.
Testing and servicing the flywheel alternator and voltage regulator.
Specifics of the 15 amp flywheel alternator system.
Test procedures and values for the 15 amp Phelon system.
Details of the 20 amp flywheel alternator system.
Procedures for testing the alternator, stator, and rectifier.
Procedures for checking voltage regulation and regulator assembly.
Normal oil pressure and troubleshooting low pressure.
Location and function of the oil pump assembly.
Function of the oil bypass valve in controlling pressure.
Specific maintenance for the MCCK Spec A crankcase breather.
Description of the RCCK closed cooling system.
Periodic maintenance for the cooling system, including flushing.
Procedure for flushing the cooling system.
Cleaning the cooling system with chemical cleaners.
General repair notes for cooling system components.
Testing and replacing thermostats.
Function and operation of the high water temperature switch.
Description of the MCCK pressure-type cooling system.
Maintenance for MCCK cooling system, including impeller inspection.
Testing MCCK cooling system for flow and leaks.
General repair notes for MCCK cooling system components.
Checking and replacing MCCK thermostats.
Function of the high water temperature cut-off switch.
Description of the neoprene impeller water pump.
Steps for disassembling water pump model 131-0165.
Steps for assembling water pump model 131-0165.
Steps for disassembling centrifugal water pump model 132-0110.
Steps for assembling centrifugal water pump model 132-0110.
Description and maintenance of the heat exchanger in closed cooling systems.
Steps for disassembling water pump model 131-0257.
Steps for assembling water pump model 131-0257.
Maintenance of closed cooling systems and heat exchangers.
Description of starter types and periodic maintenance.
Inspection of the solenoid and shift lever operation.
Adjusting pinion clearance for proper starter engagement.
Characteristics of the drive pinion and its meshing.
Steps for disassembling the starter unit.
Specific disassembly steps for solenoid starters.
Specific disassembly steps for gear drive starters.
Procedure to test the armature for shorts using a growler.
Checking the armature for open circuits at commutator riser bars.
Measuring commutator runout to detect shaft wear.
Testing the armature for ground faults.
Checking armature shaft for runout and wear.
Testing field coils for ground faults.
Testing field coils for open circuits.
Inspecting brushes for wear and smooth movement.
Procedures for reassembling the starter motor.
General steps for disassembling the engine and its components.
General steps for assembling the engine, including torquing and lubrication.
Procedure for removing the flywheel.
Procedure for removing and installing the gear cover.
Procedures for removing and installing the governor cup.
Procedures for removing and installing timing gears.
Procedures for removing and torquing cylinder heads.
Procedures for servicing valves, including cleaning and replacement.
Information on valve face and seat angles and their importance.
How to adjust valve tappets for proper clearance.
Procedures for removing pistons, rings, and checking for wear.
Removing wear ridges from cylinder walls before piston removal.
Cleaning piston ring grooves for proper ring installation.
Inspecting ring lands for wear and proper ring fit.
Issues with new rings in worn grooves and ring breakage.
How to check piston ring gap and cylinder fit.
Servicing connecting rods, including bearing clearance.
Using Plastigage to check bearing clearance.
Inspecting the cylinder block for cracks and bore condition.
Measuring cylinder bore for taper and out-of-round.
Step-by-step process for honing cylinder bores.
Installing camshaft and crankshaft bearings.
Procedures for installing oil seals in the gear cover and bearing plate.
Checking and adjusting crankshaft endplay.
Checking the oil pump for worn parts.
Explanation of symbols used in the wiring diagram.
Wiring diagram for the battery ignition system.
To Next Page
