Troubleshooting Charts - Yanmar 3TNV82A Service Manual
Tnv series
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Also See for 3TNV82A:
- Troubleshooting manual (235 pages) ,
- Service manual (394 pages) ,
- Operation manual (142 pages)
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Troubleshooting Charts
TROUBLESHOOTING CHARTS
Trouble Symptom
Starting Problem
Cause
Improper Intake / Exhaust Valve Clearance
O
Compression Leakage from Valve Seat
Intake / Exhaust Valve Seizure
O
Cylinder Head Gasket Blowout
Seized or Broken Piston Ring
O
Worn Piston Ring, Piston or Cylinder
O
Seized Crankpin Metal or Bearing
O
Improper Arrangement of Piston Ring Joints
TNV DI Service Manual
TNV DI Service Manual
Poor
Insufficient
Exhaust
Engine Output
Color
Engine Starts
During
But Stops
Exhaust Color
Work
Soon.
Exhaust
Smoke
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Engine
Engine
Engine Oil
Surging
Coolant
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Air Intake
Corrective Action
O
O
Adjust the Valve Clearance.
O
O
Lap the Valve Seat.
Correct or Replace Intake / Exhaust
O
Valve.
Replace the Gasket.
O
Replace the Piston Ring.
Perform Honing and Use Oversize
Parts.
Repair or Replace.
Correct the Ring Joint Positions.
TROUBLESHOOTING
Reference Page
See Measuring and Adjusting Valve
Clearance on page 6-60.
See Valve Face and Valve Seat on
page 6-40 for 2 valve head or Valve
Face and Valve Seat on page 6-40 for 4
valve head.
See Removal of Intake / Exhaust Valves
on page 6-36.
See Removal of Cylinder Head on
page 6-50.
See Reassembly of Pistons on
page 6-84.
See Honing and Boring on page 6-83.
See Inspection of Crankshaft on
page 6-81.
See Reassembly of Pistons on
page 6-84.
14-7
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