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The chart below shows the most common questions asked by owners of Detroit Diesel® engines 16V92 Natural when trying to troubleshoot why their engines underperform.  It categorizes areas of possible malfunction, likely cause and recommended action to bring your new, rebuilt or used  Detroit Diesel® engine back to proper operation.  The chart will give you confidence when speaking with your Detroit Diesel® engine mechanic or ordering parts.  As a quick reference guide only, the chart must not be thought of as a substitute for the use of your Detroit Diesel® engine 16V92 Natural Owner's operating or service manual.

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Engine will not start Lack of air intake or restricted air intake
Broken blower shaft  
Worn out blower shaft  
Defective fuel pump  
Defective starter  
Discharged battery  
High exhaust back pressure  
Black smoke coming out of engine Defective injector  
Contaminated fuel  
Broken or worn cylinder parts  
Engine overloaded  
Faulty intercooler or aftercooler (for turbo engines only)  
White smoke coming out of engine Broken piston ring  
Incorrectly installed ring set  
Defective injector  
Fuel quality or grade  
Long idle periods  
Broken or bent push rod  
Injector or governor improperly adjusted  
Low engine oil pressure Water in engine oil pan  
Fuel in engine oil pan  
Defective oil cooler  
Engine overloaded  
Crankcase overfilled  
Low engine RPM Improperly working injector  
Governor calibration  
Hi engine RPM Governor calibration  
Engine overheating Defective fresh water pump  
Defective raw water pump (marine engines only)  
Defective thermostat or thermostat seal  
Clogged radiator or heat exchanger (marine engine only)  
Grey smoke coming out of engine Long idle periods  
Defective intercooler or aftercooler (for turbo engine only)  
Restricted air intake  
Defective injector  
Contaminated fuel  
Blower or turbocharger seals leaking  
Geartrain makes noises Low oil level  
Engine driven accesories  
Damage main or rod bearing  

Detroit Diesel 16V92 Usefull Information 

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This engine will have a model number that starts with 816, such as 8167-7301. The serial number will start 16VF, such as 16VF1234. If you do not know your model or serial number, check the engine block for these numbers.

General Information

The Detroit 16V92 is a two cycle engine with 16 cylinders, 10 main bearings, and a displacement of 24.14 liters.

This engine uses 14.5 gallons of coolant and up to 87 quarts of oil, with a minimum of 63 quarts of oil needed for safe operation. The turbo engine uses slightly less (see section below.)

Lubricating oil should be SAE viscosity of 40, or with an API classification of CF-2. Oil should not have more than 1% sulfated ash. High temperature operation, above 200 degrees F, requires a lubricating oil with a monograde of SAE grade 50. For low temperature operation (not including marine engines), in an environment of 25 degrees F or lower, SAE 30 or SAE 15W-40 may be used. Replace with monograde SAE 40 lubricant as soon as temperatures climb above 25 degrees F.

Oil should be changed every 6000 miles for stop and go conditions, up to every 15000 miles for highway use. For marine units, change the oil every 150 hours of operation.

Detroit 16V92 TA (Turbo Aftercooled) Specs and Information

The values below are based on a 16V92TA with a T18A90 Turbocharger and 1.32 Turbine.

Normal coolant temperature should be between 160-185 degrees F.

Normal compression pressure is 500 PSI (based on sea level altitude) at 600 RPM. The minimum needed for proper operation is 450 PSI.

Lubricating oil capacity is 67 quarts, with a low of 55 quarts.

Normal lubricating oil capacity is 50-70 PSI. The minimum needed is 28 PSI at 1800 RPM or 30 for higher RPM speeds.

Normal lubricating oil temperature is between 200-250 degrees F.

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