Ç,;;:;i~~!~~v"f ' ,lA
7. UNEVENR- I ING, HUNTING
a. Govemor parts ~ng due to thick, dirty oil. Remove govemor cover and wash
out with fuel oil (page 41).
Change lubricating oil (page 17). ,
8. ENGINE WILL NOT IDLE ~tá1itJnp,~ cf'lC(a(e.,1
a. Valve leakage
b. Nomeblocked(page 26).
c. Incorrect relative setting of governor con trol lever and remote controllever.
d. Govemor idling spring too slack (page 38).
e. Blocked filter element in fuel filter (page 25).
9. EXCESSIVE LUBRICA TING OIL CONSUMPTION
a. Oilleakage past defective seals. ' .-
b. Cylinder liners and piston rings worm. Check- wear !l;fid change rings if
necessary.
10. WW OIL PRESSURE
a. Lubricating oil too thin.
b. Too little oil. Pump sucking air.
c. Defective oil pressure gauge.
e. Dirt in oil pressure relief valve (pages 15 and 19).
f. Lubricating oil pipe leakage.
g. Engine room too hot, inadequate ventilation.
11. ENGINE KNOCKING
a. Blocked nomes. Leak-oHpipe blocked.
b. Mechanical failure. Check valves, big-end bearings and gudgeon pins.
12. ENGINE OVER-REA TING OR WATER PUMP NOT FUNCTIONING
a. Water inlet or water valves blocked.
b. Defective water pump diaphragm. Leakage from drain holes in pump flange.
c. Engine room too hot, inadequate ventilation.
13. KNOCKING SOUND FROM CLUTCH OR PROPELLER
'c a. Lack of grease in propeller boss.
8] b. If stempo~t is to truck, this c.an give rise to knocking at the clutch when at futl
~ power. FaIr oH stempost to glve smooth water flow to propeller.
, c. Shaft coupling loose.
'"
.: 14. PITCHCONTROLHARDTOOPERATE
,;~ a. Inadequate greasingöfpropeller or incorrect grease.
~:i Grease propeller and sliding balts (pages 20 and 21).
" b. Bent propeller shaft. Check alignment (page 49).
c. Damaged propeller. -
d. Propeller shaft wom in stuffing box.
e. Wom thrust rings in propeller boss. Renew rings or add shims (page 43).
51
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