What to do if there is insufficient fuel supply to fuel injection pump in Yanmar 4 TNV?
If there's insufficient fuel supply to the fuel injection pump in your Yanmar Engine, check the fuel tank cock, fuel filter, fuel pipe, and fuel feed pump.
What to do if water enters fuel system in Yanmar Engine?
If water has entered the fuel system in your Yanmar Engine, drain it from the fuel filter.
How to increase lubricating oil level in Yanmar 4 TNV Engine?
If the lubricating oil level is insufficient in your Yanmar Engine, add the proper lubricating oil.
What to do if lubricating oil filter is clogged in Yanmar 4 TNV Engine?
If the lubricating oil filter in your Yanmar Engine is clogged, clean or replace it.
What to do if there is leakage from lubricating oil piping system in Yanmar Engine?
If there's leakage from the lubricating oil piping system in your Yanmar Engine, repair it.
How to fix defective pressure regulating valve in Yanmar 4 TNV Engine?
If the pressure regulating valve is defective in your Yanmar Engine, clean, adjust, or replace it.
What to do if fuel pipe is clogged or cracked in Yanmar Engine?
If the fuel pipe is clogged or cracked in your Yanmar Engine, clean or replace it.
Why is there insufficient cooling effect of radiator in Yanmar Engine?
If there is insufficient cooling effect of radiator in your Yanmar Engine, it may be due to a defective thermostat (kept opened) or a slipping fan belt.
Why is there excessive cooling effect of radiator in Yanmar 4 TNV?
If there is an excessive cooling effect of the radiator in your Yanmar Engine, it may be due to a defective thermostat (kept closed).
General| Engine Type | Diesel |
|---|---|
| Number of Cylinders | 4 |
| Fuel System | Direct injection |
| Cooling System | Liquid-cooled |
| Engine Model | 4TNV |
Details engine rating conditions, fuel, and lubricant specifications.
Outlines the regular inspection and maintenance intervals for various engine parts.
Provides step-by-step procedures for daily checks and periodic inspections.
Explains how to adjust engine idle and maximum no-load speeds.
Guides on gathering information and diagnosing engine problems systematically.
Summarizes common trouble symptoms, causes, and corrective actions in a table.
Details how to measure compression pressure to diagnose engine issues.
Covers general preparations and procedures for full engine disassembly.
Details the process for disassembling, inspecting, and reassembling the cylinder head.
Outlines the components, disassembly, and reassembly of the gear train and camshaft.
Provides procedures for disassembling, inspecting, and reassembling the cylinder block.
Covers the fuel injection pump's system diagram and components.
Provides service standards and tightening torques for turbocharger components.
Lists common turbocharger faults, their causes, and corrective actions.
Provides standard values for engine tuning parameters like valve clearance and pressures.
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