Why is oil leaking from the seals and gaskets on my Kohler Engine?
If oil leaks from the oil seals and gaskets of your Kohler Engine, check for a broken breather reed or a clogged, broken, or inoperative crankcase breather. Also, inspect for loose or improperly torqued fasteners, piston blow-by or leaky valves, or a restricted exhaust.
Why does my Kohler Command CV17 use an excessive amount of oil?
If your Kohler Engine uses an excessive amount of oil, it could be due to loose or improperly torqued fasteners (tighten them), a blown head gasket or overheating (replace the head gasket), or a broken breather reed (replace it). Other possible causes include a clogged, broken, or inoperative crankcase breather (repair or replace it), an overfilled crankcase (drain excess oil), or using the incorrect oil viscosity or type (use the correct one). Additionally, worn cylinder bore (repair or replace), worn or broken piston rings (repair or replace), or worn valve stems or guides (repair or replace) can contribute to excessive oil consumption.
Why is my Kohler Command CV17 Engine so hard to start?
If your Kohler Engine starts hard, you might have a clogged fuel line or fuel filter. Other potential causes include an overheated engine, a faulty ACR mechanism, or misadjusted choke or throttle controls. Also, check for faulty spark plugs, a sheared flywheel key, or a malfunctioning fuel pump with a clogged or leaking vacuum hose. An engaged or faulty interlock switch, loose wires grounding the ignition kill circuit, low compression, or poor fuel quality could also be to blame. Finally, consider a weak spark as a possibility.
What to do if Kohler Command CV17 Engine starts but does not keep running?
If your Kohler Engine starts but doesn't keep running, a faulty carburetor or cylinder head gasket could be the issue. Also, check for faulty or misadjusted choke or throttle controls, a malfunctioning fuel pump with a clogged or leaking vacuum hose, or an intake system leak. Loose wires intermittently grounding the ignition kill circuit, poor fuel quality, or a restricted fuel tank cap vent might also be to blame.
Why does my Kohler Engine run but misses?
If your Kohler Engine runs but misses, it could be due to an incorrectly adjusted carburetor, an overheated engine, or faulty spark plugs. Other potential causes include faulty or improperly gapped ignition module(s), an incorrect crankshaft position sensor air gap, or an engaged or faulty interlock switch. Loose wires grounding the ignition kill circuit, poor fuel quality, or disconnected or loose spark plug leads could also be to blame.
Why is my Kohler Command CV17 using an excessive amount of oil?
If your Kohler Engine uses an excessive amount of oil, check for loose or improperly torqued fasteners, a blown head gasket (possibly due to overheating), or a broken breather reed. Other potential causes include a clogged, broken, or inoperative crankcase breather, an overfilled crankcase, or incorrect oil viscosity/type. Worn cylinder bore, piston rings, or valve stems/guides could also be the reason.
Why is my Kohler Command CV17 leaking oil from oil seals and gaskets?
If oil leaks from the oil seals and gaskets of your Kohler Engine, it could be due to a broken breather reed (replace it) or a clogged, broken, or inoperative crankcase breather (repair or replace it). Other potential causes include loose or improperly torqued fasteners (tighten them), piston blow by or leaky valves (repair or replace leaky valve parts), or a restricted exhaust (clear the exhaust restriction).
What causes a Kohler Engine to overheat?
If your Kohler Engine overheats, possible causes include a broken cooling fan (repair or replace it), excessive engine load (reduce it), or a failed or off fan belt (replace or adjust it). A faulty carburetor (replace it), high or low crankcase oil level (adjust to correct level), or a lean fuel mixture (adjust the fuel mixture) can also cause overheating. Other potential issues are low cooling system fluid level (refill it), clogged radiator or cooling system components (clean or repair), a failed or broken water pump belt (replace it), or a malfunctioning water pump (repair or replace it).
What causes a Kohler Command CV17 Engine to knock?
If your Kohler Engine knocks, consider these potential causes: excessive engine load, hydraulic lifter malfunction, incorrect oil viscosity/type, internal wear or damage, low crankcase oil level, or poor fuel quality.
Why is my Kohler Engine overheating?
If your Kohler Engine overheats, check for a broken cooling fan, excessive engine load, or a failed fan belt. A faulty carburetor, high or low crankcase oil level, or a lean fuel mixture could also be the cause. Additionally, inspect the cooling system fluid level and the radiator for clogs, restrictions, or leaks. Other possible issues include a failed water pump belt or a malfunctioning water pump.
General safety instructions and warnings for engine operation and maintenance.
Explanation of how to identify engine models, specifications, and serial numbers.
Guidelines for selecting the correct type and weight of engine oil based on temperature.
Schedule of required maintenance procedures for engine longevity.
Procedure for storing the engine properly for extended periods.
List of suppliers for specialized tools and their contact information.
Description and part numbers for essential tools for engine service.
List of lubricants and sealants recommended for engine assembly.
Instructions for fabricating specific holding tools for engine service.
Common engine problems and their potential causes and solutions.
Procedure for inspecting the engine's external condition before disassembly.
Tests to diagnose engine issues, including crankcase vacuum.
Procedure for testing cylinder sealing using an external air source.
Description of engine air cleaner types and their importance.
Procedure for cleaning and oiling the precleaner element.
Procedure for replacing the paper air cleaner element.
Checklist for inspecting air cleaner components after servicing.
Description and service procedure for heavy-duty air cleaner systems.
Ensuring proper engine cooling by keeping external surfaces clean.
Overview of fuel and governor systems used in Command engines.
Guidelines for selecting and storing gasoline for optimal engine performance.
List of typical carbureted fuel system components.
Information on inspecting and replacing the in-line fuel filter.
Tests to diagnose potential problems within the fuel system.
Operation, performance, and replacement procedures for the fuel pump.
Procedure for adjusting idle fuel and speed on CV17-740 carburetors.
General explanation of the centrifugal flyweight mechanical governor.
Adjusting governor sensitivity by repositioning the governor spring.
Procedure for adjusting the engine's high speed RPM setting.
Procedure to purge air from the EFI system before initial start-up.
List of principal components in the Electronic Fuel Injection system.
Explanation of how the EFI system manages fuel and ignition for optimal performance.
Essential cleanliness and handling precautions for EFI system servicing.
Description and function of the Engine Control Unit as the system's computer.
Function and testing procedure for the sensor that monitors crankshaft RPM.
Function and testing procedure for the sensor indicating throttle plate angle.
Procedure to re-establish the relationship between TPS and ECU after changes.
Description of electric fuel pump styles and general operation.
Function and service procedures for maintaining system fuel pressure.
Information on the high-volume, high-pressure, in-line fuel filter.
Description of the fuel rail assembly feeding fuel to injectors.
Description of the assembly that regulates combustion airflow.
Procedure for adjusting the engine's standard idle speed setting.
Critical procedures for checking and adjusting governor and throttle linkage.
Guide to diagnosing common engine problems with EFI systems.
Testing procedures for electrical components within the EFI system.
Quick test to verify EFI fuel system operation.
Explanation of diagnostic codes and how they are accessed via the MIL.
Alternative method for troubleshooting the EFI system using a flow chart.
Description of the full pressure lubrication system and oil pump.
Guidelines for selecting proper oil type and weight based on air temperature.
Procedure for checking and maintaining the proper oil level in the crankcase.
Procedure for changing engine oil and oil filter at recommended intervals.
Inspection and cleaning procedures for crankcase and blower housing mounted oil coolers.
Operation, installation, and testing of the optional oil pressure monitor switch.
Crucial safety warning regarding spring tension in retractable starters.
Steps for removing the starter motor from the blower housing.
Procedure for replacing the starter rope without full disassembly.
Procedure for replacing pawls, including disassembly and reassembly steps.
Inspection of starter components for wear or damage.
Step-by-step instructions for reassembling the retractable starter.
Information on engine spark plugs, including type, gap, and service.
Procedure for removing, checking, and installing spark plugs.
How to inspect spark plugs for indications of engine condition.
General information on 12-volt batteries, recommendations, and maintenance.
Procedure for testing battery voltage using a DC voltmeter.
Overview of standard and SMART-SPARK™ CD ignition systems.
Explanation of how capacitive discharge ignition systems function.
Information for troubleshooting CD ignition system problems.
Procedures for diagnosing ignition problems on SMART-SPARK™ engines.
Guidelines for avoiding damage to electrical system components.
Guide for diagnosing problems in 15/20/25 Amp battery charging systems.
Information on inertia drive and solenoid shift electric starter motors.
Important precautions to prevent starter damage during operation.
Step-by-step procedures for testing solenoid pull-in coil and contact continuity.
Critical safety warning regarding engine disabling before working.
Instructions for cleaning parts thoroughly before inspection.
Suggested sequence for complete engine disassembly.
Procedure for disconnecting spark plug leads safely.
Procedure for safely shutting off and draining the fuel supply.
Steps for draining engine oil and removing the oil filter.
Procedures for removing crankcase and blower housing mounted oil coolers.
Procedure for removing the engine muffler and exhaust system.
Steps for removing standard and commercial mower air cleaner assemblies.
Procedure for removing heavy-duty air cleaner components.
Steps for removing the engine control panel.
Procedure for safely disconnecting and removing the fuel pump.
Steps for removing throttle control brackets and linkages.
Procedure for removing governor lever and external controls.
Procedure for safely disconnecting and removing the carburetor.
Steps for disconnecting and removing the electric starter motor.
Procedure for removing blower housing and outer baffles.
Procedure for disconnecting and removing the Oil Sentry™ switch.
Steps for removing inner baffles and breather cover.
Procedure for removing valve covers, noting differences in designs.
Steps for disconnecting and removing ignition modules.
Procedure for removing the intake manifold and associated gaskets.
Steps for removing spark plugs from the cylinder heads.
Procedure for removing cylinder heads and hydraulic lifters.
Steps for disassembling cylinder heads, including rocker arms.
Procedure for removing plastic or metal grass screens and the fan.
Procedure for removing the flywheel using a puller and strap wrench.
Steps for removing stator and associated backing plates.
Procedure for removing the oil pan assembly from the crankcase.
Steps for removing the governor cross shaft and its retainer.
Procedure for removing connecting rod and piston assemblies.
Procedure for carefully removing the crankshaft from the crankcase.
Procedure for removing the oil seal from the crankcase.
Instructions for cleaning engine parts for accurate inspection.
Operation of the ACR mechanism for easier starting.
Inspection and service procedures for the camshaft.
Inspection and service procedures for the crankshaft.
Checking bearing surfaces for wear and measuring clearances.
Checking crankshaft keyways for wear or damage.
Procedure for inspecting the crankpin and addressing wear.
Inspection and service procedures for the crankcase cylinder bore.
Procedures for honing the cylinder bore to specified tolerances.
Critical cleaning procedures for cylinder bores after machining.
Procedure for accurately measuring piston-to-bore clearance.
Inspection of the flywheel for cracks and keyway damage.
Inspection and service of cylinder heads, valves, and valve seats.
Inspection of valve springs, seats, and stem-to-guide clearance.
Inspection of pistons and rings for wear, damage, and proper installation.
Procedure for correctly installing new piston rings.
Inspection and service of connecting rods for wear and clearance.
Inspection and 'bleeding' procedure for hydraulic lifters.
Inspection of the oil seal and main bearing surfaces.
Inspection of governor gear teeth and weights for wear.
Inspection of breather reed and oil separator components.
Procedure for replacing a damaged or leaking governor cross shaft oil seal.
General instructions for engine reassembly using specified values.
Suggested sequence for complete engine reassembly.
Procedure for installing the flywheel end oil seal correctly.
Steps for installing the governor cross shaft and setting end play.
Procedure for sliding the crankshaft into the crankcase main bearing.
Procedure for installing connecting rods, pistons, and rings correctly.
Procedure for installing the camshaft, aligning timing marks.
Procedure for checking and adjusting camshaft end play.
Procedure for installing the oil pump assembly.
Procedure for installing the oil pan using sealant or gasket.
Steps for installing the stator and backing plates.
Critical procedures and precautions for installing the flywheel.
Procedure for installing the fan and grass screen components.
Procedure for installing hydraulic lifters after preparation.
Procedure for assembling cylinder heads with valves and springs.
Steps for installing cylinder heads using correct hardware and sequence.
Procedure for installing push rods and rocker arms correctly.
Procedure for installing new spark plugs with correct gap and torque.
Procedure for installing ignition modules and setting air gap.
Procedure for installing the intake manifold with new gaskets.
Procedure for installing breather cover and inner baffles.
Procedure for positioning and securing the blower housing and baffles.
Procedure for installing the muffler and associated hardware.
Procedure for installing the oil cooler or adapter.
Procedure for installing oil filter and filling crankcase with oil.
Final checks and adjustments before starting the reassembled engine.
Procedure for testing the engine on a test stand after reassembly.
Procedure for connecting spark plug leads after engine reassembly.
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