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Loading...Why is my Kohler Crankshaft engine leaking oil from seals and gaskets?
If oil leaks from the oil seals and gaskets of your Kohler Crankshaft engine, it could be due to a clogged or inoperative crankcase breather, a broken breather reed, loose or improperly torqued fasteners, piston blowby or leaky valves, or a restricted exhaust.
General| Brand | Kohler |
|---|---|
| Model | Command PRO ECV730 |
| Category | Crankshaft |
| Language | English |
Essential safety warnings and hazard identification for engine operation and maintenance.
Information on locating and understanding engine model, spec, and serial numbers.
Guidance on selecting and using the correct engine oil for optimal performance and longevity.
Specifications for appropriate gasoline types and blends for engine operation.
Schedule of required maintenance tasks based on operating hours.
Procedures for safely storing the engine for extended periods.
Key technical specifications including power, bore, stroke, displacement, and weight.
List of specialized tools required for engine service and repair procedures.
Contact information for suppliers of specialized tools.
Instructions for fabricating common service tools from readily available materials.
A systematic guide to diagnosing common engine starting and running problems.
Identifies causes and solutions for engine overheating, knocking, power loss, oil consumption, and leaks.
Procedures for visually inspecting the engine's external condition before disassembly.
Procedures for performing essential engine tests like crankcase vacuum and compression.
Information on the service and maintenance of the heavy-duty air cleaner system.
Details on the service and maintenance of the optional low-profile air cleaner.
Guidance on maintaining proper engine cooling by keeping air intake and cooling fins clean.
Introduction to the EFI system's function, components, and basic operation.
Detailed information on EFI system electrical components, sensors, and ECU.
Description of EFI fuel system components including pump, filter, lines, injectors, and throttle body.
Comprehensive guide for diagnosing EFI system faults using fault codes and flow charts.
Overview of the engine's full pressure lubrication system and oil pump function.
Instructions for correctly checking and maintaining the engine oil level.
Environmental guidelines for the proper disposal of used engine oil.
Procedures for performing routine oil and oil filter changes.
Instructions for inspecting and cleaning the optional oil cooler.
Information on the optional low oil pressure switch, its installation, and testing.
Details on spark plug types, gap specifications, service, and inspection.
Battery size recommendations, maintenance procedures, and testing methods.
Overview of the charging system, including stator and rectifier-regulator.
Details on the rectifier-regulator component and its testing procedure.
A guide to diagnosing and resolving battery charging system problems.
Information on fuse types, ratings, and replacement procedures.
Details on electric starters, including precautions, troubleshooting, and disassembly.
Troubleshooting guide for common engine starting problems.
General guidelines for cleaning and safely disassembling the engine.
Initial steps for safely preparing the engine for disassembly by disconnecting electrical and fuel connections.
Step-by-step instructions for removing major external engine components like air cleaner and muffler.
Procedures for removing the engine's control panel assemblies.
Steps for removing fuel pump, module, and related components.
Instructions for disconnecting and removing the throttle body assembly.
Procedures for removing ECU, starter motor, and related electrical components.
Steps for removing miscellaneous external parts like oil separator and grass screen.
Instructions for removing the engine's blower housing and baffles.
Procedures for removing the breather cover and the optional Oil Sentry™ switch.
Steps for removing cylinder heads and key engine sensors like MAP and crankshaft position.
Instructions for removing fuel injectors and the intake manifold assembly.
Procedures for removing spark plugs and cylinder heads.
Instructions for removing the engine's fan and flywheel assembly.
Procedures for removing the stator and the engine's oil pan.
Steps for removing internal engine parts like camshaft, connecting rods, and pistons.
Procedures for removing the crankshaft, piston pin, and flywheel end oil seal.
Method for inspecting camshaft lobes and gear teeth for wear or damage.
Procedures for inspecting crankshaft journals, bearing surfaces, and keyways for wear.
Steps for inspecting crankcase gasket surfaces and cylinder bores.
Method for accurately measuring piston-to-bore clearance using a micrometer.
Instructions for inspecting the flywheel for cracks and keyway damage.
Procedures for checking cylinder head flatness and inspecting valve mechanism parts.
Guide to identifying common types of piston and ring damage and their causes.
Steps for correctly installing new piston rings onto the piston, including gap and side clearance checks.
Inspection of connecting rod bearing areas for wear, scoring, and clearances.
Inspection of hydraulic lifters and procedures for "bleeding" them before installation.
Inspection of the oil pan and its sealing surfaces for damage or wear.
Inspection of governor gear teeth and weights for wear or damage.
Disassembly and inspection of the oil pump assembly for wear or damage.
Explanation of the crankcase breather system's function and components.
Procedure for replacing the governor cross shaft oil seal if it is damaged.
Essential guidelines for engine reassembly, including torque values and cleanliness.
A suggested order for reassembling engine components after service.
Steps for installing the flywheel end oil seal correctly into the crankcase.
Procedure for lubricating and installing the crankshaft into the crankcase.
Steps for installing connecting rods, pistons, and rings with proper orientation and lubrication.
Procedures for installing the governor cross shaft, including setting end play.
Steps for lubricating and installing the camshaft, aligning timing marks.
Procedures for installing the oil pan, using gaskets or sealant, and torquing fasteners.
Reassembly steps for the governor gear assembly within the oil pan.
Reassembly procedures for the oil pump assembly into the oil pan.
Steps for installing the flywheel and fan, ensuring proper keyway alignment and torque.
Procedures for installing cylinder heads, hydraulic lifters, and related valve components.
Steps for installing push rods and rocker arms, ensuring proper seating and torque.
Procedures for installing spark plugs and the intake manifold assembly.
Steps for installing fuel injectors and the Manifold Absolute Pressure sensor.
Procedures for installing the crankshaft position sensor and valve covers.
Steps for installing the breather cover and inner baffles with new gaskets.
Installation of oil temperature sensor, Oil Sentry™, and blower housing assembly.
Steps for reconnecting the rectifier-regulator after its removal or testing.
Procedures for installing the metal or plastic grass screen onto the fan.
Installation of oil separator, starter motor, ECU bracket, and ECU.
Steps for installing the throttle body assembly with sensors and linkage.
Procedures for installing the lift fuel pump, fuel filter, and fuel pump module.
Installation of external governor controls, including lever and linkage.
Procedures for installing the top and bottom throttle control panels.
Steps for installing the heavy-duty or low-profile air cleaner assembly.
Procedures for installing the muffler and the optional oil cooler.
Steps for setting the initial governor adjustment for proper engine speed control.
Procedures for testing the assembled engine, checking oil pressure, and adjusting idle/high speeds.
