Engine Service Standards - Yanmar 3TNV88F Service Manual

GENERAL SERVICE INFORMATION

ENGINE SERVICE STANDARDS

Inspection item
Intake/exhaust valve clearance
Fuel injection timing
Fuel injection pressure
Compression pressure
-1
at 250 min (rpm)
Deviation between cylinders
Oil pressure switch operating
pressure
Thermostat
Thermostat Option
Coolant temperature switch
4-24
Standard
0.006 - 0.010 in.
(0.15 - 0.25 mm)
See Checking and Adjusting Fuel Injection Timing on page 7-20.
See Test and Adjustment Specifications on page 7-6.
483 - 513 PSI
(3.33 - 3.53 MPa;
34 - 36 kgf/cm²)
29 - 43 PSI
(0.2 - 0.3 MPa;
2 - 3 kgf/cm²)
5.8 - 8.8 PSI
(0.04 - 0.06 MPa;
0.4 - 0.6 kgf/cm²)
Valve opening
temperature
157 °F - 163 °F
(70 °C - 73 °C)
176 °F - 183 °F
(80 °C - 84 °C)
225 °F - 235 °F
(107 °C - 113 °C)
Engine Service Standards
Limit
See Measuring and
– Adjusting Valve
Clearance on page 6-30
384 - 414 PSI See Troubleshooting By
(2.65 - 2.85 MPa; Measuring Compression
27 - 29 kgf/cm²) Pressure on page 14-4
–
–
Full opening lift
temperature
0.32 in. (8 mm)
or above See Thermostat on
185 °F (85 °C) page 8-9
0.39 in. (10 mm)
or above
203 °F (95 °C)
See Temperature switch
–
on page 8-8
3TNV88F Service Manual
Reference page
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