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much oil injection and
fail to burn
completely.
1.7 Engine oil is
underpressure
1. Pressure gauge damaged or oil
pipe blocked.
2. Too low oil level in oil sump.
3. Engine oil is diluted too much.
4. Oil pump gear worn out or
poorly mounted.
5. Filter screen of engine oil or
filter is blocked.
6. Pressure limiting valve or
spring of surge damping valve
damaged.
7. Oil pipe blockage or leaks.
8. Clearance of different parts
are excessive.
Replace the pressure gauge or
dredge the oil pipe.
Fill in engine oil to the specified
oil level.
Check the oil designation,
whether the engine oil is diluted
by the fuel or the temperature of
engine oil is too high and repair.
Adjust the clearance or replace
gear.
Clean or replace.
Replace.
Check and repair.
Check and repair.
1.8 Too high
temperature of
cooling water
1. Water temperature gauge or
temperature sensing plug does
not work.
2. Deficiency in water.
3. Blockage caused by too much
incrustation in engine water
passage; Radiating fin of
radiator, or copper tube stained.
4. Engine overloaded.
Check and replace.
Fill in cooling water, bleed air,
adjust belt tension and check the
water pump clearance.
Check and clean.
Decrease the load.
1.9 Oil supply of oil
transfer pump is
deficient
1.Non return spring of oil
transfer pump is broken or valve
seat is damaged.
2. Plunger is worn
3. Oil feed screw leaks air or
pipeline is blocked.
Replace spring or repair non
return valve.
Replace plunger.
Replace spacer and tighten,
eliminate blockage.
1.10 Fault in
injection pump
1. Does not supply oil.
a. Fault in injection pump.
b. Filter and pipeline are
blocked.
c. There existing air in oil
Check and eliminate.
Clean and replace parts.
Drain air.
Summary of Contents for PY180H
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