Page 222 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

(VI) Excessive oil consumption

Check oil level

< <
Oil level high (Remove excess oil) Ok Check for external leakage of oil

< <
Leaky (Rectify) No leakage Check oil grade

< <
Low viscosity (Replace by correct Ok Check valve guide clearance
grade of oil)

< <
Excessive clearance (Replace valve Ok Check ring clerance
guides)

< <
Excessive clearance (Re-ring) Ok Check piston/cylinder bore/liner for
wear

Worm out piston/cylinder bore/cylinder
(Overhaul engine

(VII) Low oil pressure

Check oil level

< <
Low (Top-up) OK Check oil grade

< <
Low viscosity (Replace by correct Ok Check oil pressure gauge
grade of oil)

< <
Defective Ok
(Replace pressure gauge) Check oil strainer in sump

< <
Ok
Clogged (Clean it) Check oil pipes for crack/blockage
looseness
< <
Cracked (Replace) Blocked (Clean it) Ok
Loose (Tighten it) Check pressure relief valve assembly

< <
Defective (Repair valve assembly) Ok
Check oil pump

< <
Ok
Defective (Overhaul oil pump) Check crankshaft and camshaft
bearings

Worn out (Overhaul engine)

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